welltec profile brochure

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Mission Statement

Our vision is to be the leading global provider of robotic well solutions within the oil and gas industry.

To achieve our vision, we deliver superior service with proprietary high-tech-nology equipment. We collaborate closely with oil and gas companies to de-velop breakthrough technologies that solve challenges quickly, effectively and with certainty - even in extreme operating conditions and technologi-cally challenging wells.

Our mission is to deliver these core business benefits with clean technology that advances our clients’ ongoing efforts to enhance personnel safety and health while reducing their environmental risks, fuel consumption and car-bon footprints.

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Prefaceby Jørgen Hallundbæk

President and CEO

Welltec® is a solution-driven company, developing and applying proven technology to address the challenges of tomorrow’s needs. We continue to push the boundaries of conventional oil field technology to their limits and force the only constant parameter we know: change. Only through constant change are we capable of capturing the necessary improvements to assure a strong future for our stakeholders: industry, customers and employees.

Allerød, September 2009

We motivate our work force with leadership through example. Our superior level of service quality is underpinned and driven by the highest standards of ethical conduct incorporating all our policies and QHSE values in our everyday activities.

Within the delivery of our services, we make a profit to assure a continued source of funding for our ongoing research and develop-ment. By developing knowledge and competence based skills and taking initiatives that add value to our industry, we have assured our current position as the market leader in our field.

We draw strength from our in-depth engineering and manufac-turing knowledge, combining it with a detailed understanding

of oilfield applications. During this process, we deliver to our customers what they want, not what we think they need. Due to our culture of creative thinking and our determination to move beyond the conventional, we are certain we will achieve our goals.

We are confident as to the future when measuring our success in relation to customer satisfaction, including the durability of our existing customer relationships and the recent rate of exponential growth sustained by our company. We have built our company to last and look forward to the challenges of tomorrow.

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Contents

p. 6 – 7 Welltec® at a Glance

p. 8 – 9 The Well Tractor® Story

p. 10 – 11 The Well Tractor®

p. 12 – 13 Company History

p. 14 – 15 Technological Leadership

p. 16 – 17 Awards

p. 18 – 19 QHSE

p. 20 – 21 Welltec’s TeamThe Welltec® Employees

p. 22 – 23 Pre-job Planning

p. 24 – 25 Product LineGathering Logging Data While Driving Forward

p. 26 – 27 Well Tractor® Services

p. 28 – 29 Run in Hole ProceduresType of Jobs

p. 30 – 31 Why Use a Wireline Well Tractor®?

p. 32 – 33 The Wireline Well Tractor®

p. 34 – 35 Wireline Well Tractor® – Performance

p. 36 – 39 Specifications – Well Tractor® 218Specifications – Well Tractor® 318Specifications – Well Tractor® 412

p. 40 – 41 Why Use a Coiled Tubing Well Tractor®?

p. 42 – 43 The Coiled Tubing Well Tractor®

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p. 44 – 45 Coiled Tubing Well Tractor® – Performance

p. 46 – 47 Run in Hole Procedures Type of Jobs

p. 48 – 49 Pressure Drop Specifications – Coiled Tubing Well Tractor®

p. 50 – 51 Mechanical Downhole Services

p. 52 – 53 Why Use a Well Stroker®?

p. 54 – 55 The Well Stroker®

p. 56 – 57 Why Use a Well Key®? The Well Stroker® with the Well Key®

p. 58 – 59 Specifications – Well Stroker® Specifications – Well Key®

p. 60 – 61 Why Use a Well Cleaner®?

p. 62 – 63 The Well Cleaner®

p. 64 – 65 Recent Developmentsp. 66 – 67 Specifications – Well Cleaner®

p. 68 – 69 Why Use a Well Miller®?

p. 70 – 71 The Well Miller®

p. 72 – 73 The Well Miller® NPR

p. 74 – 75 The Well Miller® RCBSpecifications – Well Miller®

p. 76 – 77 Welltec Release Device® Specifications – Welltec Release Device®

p. 78 – 81 Worldwide Contacts

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Welltec® at a Glance

W e t h r i v e o n i n n o v a t i v e i d e a s

a n d w e a r e d e d i c a t e d t o m o v e b e y o n d t h e c o n v e n t i o n a l

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The backbone of Welltec’s progressive growth has been the design, manufacturing and development of the patented Well Tractor® - a downhole well bore intervention tool used for transporting diagnostic and maintenance equipment inside highly deviated and hori-zontal oil and gas wells. Through years of experience, gained since the initial commercial introduction in 1996, Welltec® has identified the need for clean, unique solutions to address the ongoing challenges of tomorrow’s intervention market.

Innovative thinking combined with professionalism and a strong focus on quality has established Welltec® as a world leader in the develop ment of cost-effective and value-creating solutions for vertical, horizontal and deviated wells.

Today, Welltec® is regarded as the leading provider of robotic solutions worldwide, and we have amassed an impressive operating track record to clearly identify ourselves as the market leader.

Our only constant is change

Changing situations require innovative responses

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The Well Tractor® StoryI n 1 9 8 7 , t h e f i r s t i d e a s f o r a c o n v e y a n c e d e v i c e

f o r h o r i z o n t a l w e l l i n t e r v e n t i o n w e r e c o n c e i v e d

These original ideas led to the foundation of Welltec® in 1994. Throughout March 1996, the first commercial Well Tractor® field tri-als were carried out successfully in Norway. From there on, the Well Tractor® technology has changed the way operators plan and drill their wells. Our technology facilitated a step change in the tech-nique of deploying logging tools into horizontal and highly devi-ated wells without the use of drill pipe or coiled tubing.

From the very beginning, Welltec® has focused on keeping the time frame from development and design of an idea to the final commercial application as short as possible, while still meeting the requirements of the Welltec® QHSE Management System. Welltec® has therefore established its own R&D, manufacturing, assembly, testing and control facilities.

At the well site, Welltec® carries out Well Tractor® operations with specialized field engineers. Each tool is preconfigured in advance by our team of experienced engineers to suit the necessary application and other company interfaces, as required.

Lately, our areas of expertise have expanded from conveyance to also include well optimization. For instance, we have developed a series of mechanical services to supplement our tractor services, and this series will expand to include new tools. We will continue to rev-olutionize the well intervention technology to meet the demands of our clients and secure that we are constantly in a league of our own.

Welltec® currently has +450 employees who support the operational activities. Support bases are located in Angola, Azerbaijan, Austra-lia, Brazil, Canada, the Congo, Denmark, India, Indonesia, Malaysia, Mexico, Nigeria, Norway, Russia, Saudi Arabia, U.A.E., U.K., U.S., Venezuela and Vietnam. With the rapidly increasing demand for Welltec® services, we will expand our activities with new bases in the future.

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has revolutionized the oil and gas industry

Welltec’s technology

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Our Well Tractor® offers a deployment solution for all traditional wireline conveyed operations, including ballistic/perforating services, production logging, cased and open hole logging and drill pipe recovery. The Well Tractor® can also be run on coiled tubing to extend the reach of coiled tubing in extended reach oil and gas wells.

The Well Tractor®

Wireline Well Tractor®Services run on the wireline Well Tractor®:Perforating, cement bond logging, production logging, plug setting and pulling, back-off in drill pipe, gyro, caliper, tubing puncher, bailer runs, gas lift mandrel runs, shifting sliding sleeves, opening and closing isolation valves, seismic operations, camera, open hole logging, magnetic ranging services in SAGD wells, milling isolation valves, scale milling, fishing, cleaning completions, pipeline inspection and other services done on a wireline cable.

Services run on the Coiled Tubing Well Tractor®:Perforating long intervals, setting straddles, “stiff wire” logging services, well bore clean-outs, acidization, milling, fishing operations, plug pulling, shifting sliding sleeves and other services done on coiled tubing.

Setting and retrieving plugs, setting and retrieving gas lift mandrels, opening/closing sliding sleeves, opening/closing isolation valves, fishing, removal of scale and sand bridg-es, cleaning sub surface safety valves, sand clean out, milling of Barium Sulfate bridges, milling of downhole isolation barriers, cement plug drilling, cast iron plug milling, estab-lishing flow paths, nipple profile milling and much more.

Coiled Tubing Well Tractor®

Mechanical Downhole Services

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D e v e l o p m e n t o f I n t e r v e n t i o n S t r a t e g y , S t a t o i l H y d r o ( x S t a t o i l ) , 1 9 9 2 – 2 0 0 8 , A c t i v i t y

As Well Tractor® technology replaces conventional services, it adds value to the management of well services, which is reflected in theoverall use of Well Tractor® interventions.

Snubbing/RAS Coiled Tubing WL Tractor RLWI

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Welltec® and the Welltec Denmarkoffice, production and servicefacilities were established

1994

Office and service facilityestablished in Bergen, Norway

1999

Office and service facilityestablished in Calgary,Alberta, Canada

2001

Office and service facilityestablished in Anchorage,Alaska & Midland, Texas, USA

2003

Office and service facility established in

Aberdeen, UK

1997

Office and service facility established in Houston, Texas, USA

2000

Office and service facilityestablished in Singapore & Kuala Lumpur, Asia Pacific

2002

Company History

New Headquarters established in Denmark, that include: R&D, Manufacturing, Servicing, Operations

HQ and Training facilities. Office and service facilities established in Fort Worth , Texas, USA.

2004

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Office and service facility established in Bonnyville, Canada - Maturín, Venezuela - Abu Dhabi, United Arab Emirates - Haugesund, Norway - Perth, Australia - Macaé, Brazil and Luanda, Angola

2005

Office and service facility established in Stavanger, Norway - Denver, Colorado, USA - Farmington, New Mexico, USA - Conway, Arkan-sas, USA - Villahermosa, Mexico - Río de Janeiro, Brazil - Port Harcourt, Nigeria

2007

Office and service facilities established in Pointe-Noire, Congo - Kakinada, India -

Mumbai, India - Vung Tau, Vietnam and Al-Khobar, Saudi Arabia

2008

Office and service facility established in PrudhoeBay & New Orleans, USA - Lagos, Nigeria -

Labuan, Malaysia - Jakarta, Indonesia -Moscow, Russia and Baku, Azerbaijan

2006

Office and service facility estab-lished in Minot, North Dakota, USA - Balikpapan, Indonesia

2009

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First plans for the Well Tractor®

on the drawing board

1987

New associated technologyis introduced: The Well Stroker®

2002

A miniaturized Well Tractor®, the 218 Well Tractor®, is

introduced

1998

The 218 Well Tractor® XRis introduced

2001

First field trial withthe Well Tractor®

1994

Technological Leadership

The first wireline and Coiled Tubing Well Tractors areintroduced to the market

1996

The 318 Well Tractor® XRis introduced

2000

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New technology is introduced:The Well Cleaner® LE,Well Key® & Well Brush*

The 218 Well Stroker®, 312 Well Cleaner® DE, 218 Well Key® and 212 Well Miller® are introduced

20062003

The 218 Well Tractor® XR DC Motor, which acquires downwards logging

data while driving forwards in open hole, is introduced

2003

The Well Miller® RCB and 218 Well Cleaner® LE are introduced

2007

* The Well Brush is now a part of the Well Cleaner®

New technology is introduced:The Well Miller® joins the Welltec® fleet.The 218 Coiled TubingWell Tractor® XR is introduced

2004

The Welltec Release Device®

is introduced

2005

The 212 Coiled Tubing Well Tractor® is introduced

2008

The Well Cleaner® PST, 412 Well Tractor® and Well Miller® NPR

are introduced

2009

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We are awarded PetroleumTechnology TransferCouncil Award

1996

We win Woelfel Best Mechanical Engineering Innovation Award for the Well Tractor®

1998

We proudly receive King Frederik 9th Award for Excellence in Export

2002

Awards

Jørgen Hallundbæk and his wife receive

the King Frederik 9th Award for Excellence

in Export, presented by His Royal Highness,

Prince Henrik of Denmark.

1999

We receive Gazelle of the Year

1999

We win Special Meritorious Award for Engineering Innovation

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We were awarded the ONS Innovation Award and OTC Spotlight on New Tech-nology Award for the Well Miller® RCB

2008

We win Entrepreneurof the Year

2006

2009

We achieve the OTC Spotlight on New Technology Award for the

Well Cleaner® PST

2005

We receive World Petroleum Council Meritorious Award

for Technical Excellence

2007

We win Woelfel Best Mechanical Engineering Innovation Award

for the Well Miller®

We are awarded Woelfel Best Mechanical Engineering Innovation Award for theWell Stroker®

2003

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QHSEW e l l t e c ’ s Q H S E M a n a g e m e n t S y s t e mm e e t s t h e d e m a n d f o r m o d e r n q u a l i t yb y s e t t i n g t h e s t a n d a r d s f o r a c h i e v i n gt h e h i g h e s t l e v e l o f q u a l i t y , h e a l t h , s a f e t y a n d e n v i r o n m e n t a l m a n a g e m e n t

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Our ambition is to exceedthe expectations of our clients by offering anddelivering the highestlevel of service quality

Welltec® endeavours to limit adverse effects on the physical environment where all our activities are carried out while considering employees and others who may be affected by our activities. Our manufacturing facili-ties recycle 90%.

Welltec® strives to takecare of the health of every individual who is involvedin our activities

The preservation andsafety of all personneland equipment involvedin our operations is theprimary concern of all Welltec® employees

Quality EnvironmentHealth Safety

ISO 9001 Quality Management System Standard AwardDS/EN ISO 9001:2000 achieved in 2003

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Our people come up with ideas

and turn them into reality

Welltec’s TeamC o - o p e r a t i o n , t r u s t a n d r e s p e c t a r e o u r s t r e n g t h s

Our employees are enterprising and they know how to motivate each other, enabling us to work as a team in a world characterized by daily changes and new challenges.

Welltec® provides the framework for the individual employee to develop his or her personal and professional skills, guaranteeing job satisfaction, competence and inspiration.

Our employees cope with their demanding work by participating in creating an attractive workplace, based on their individual needs. Without our employees’ skills, creative input and responsibility, Welltec® would not have been able to develop into the solid, com-petitive, international company we are today.

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The Welltec® employee

• Thinks – informs – reacts – measures

• Applies the highest level of consistent quality within every process

• Learns, respects and exchanges knowledge with other employees

• Is open to change and acts as a catalyst to facilitate change

• Adds value within the process of change

• Supports and develops the internal and external supplier/customer relationships

• Sets ambitious goals and achieves them

• Knows that quality and professionalism are fundamental to every action

• Strives for the success of others within the organization

The Welltec® Employees O u r e m p l o y e e s a r e r e g a r d e d a s o u r g r e a t e s t a s s e t

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Pre-job Planning

WellSimTM is a program developed especially for analyzing and planning Well Tractor® operations. It is an essen-tial tool when confirming the technical feasibility of the operation. WellSimTM predicts at what depth the Well Tractor® needs to be started and what pull is required to get to any given depth in a well.

The pick-up weight is calculated along with a recommended weak point. The directional properties of the well,inclination, azimuth and dog legs, are taken into account along with restrictions and casing/hole conditions, fric-tion, when calculating the toolstring and cable drag.

B a s e d o n y e a r s o f e x p e r i e n c e , w e u t i l i z e o u r o w n p r o p r i e t a r y d r a g a n a l y s i s p r o g r a m – W e l l S i m ™

B a s e d o n y e a r s o f e x p e r i e n c e , w e u t i l i z e o u r o w n p r o p r i e t a r y d r a g a n a l y s i s p r o g r a m – W e l l S i m ™

Well profile Simulation results

Well Tractor®

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Product LineW e l l Tr a c t o r ® • C T W e l l T r a c t o r ® • W e l l C l e a n e r ® • W e l l S t r o k e r ® • W e l l K e y ® • W e l l M i l l e r ® • W e l l t e c R e l e a s e D e v i c e ®

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• Cased and open hole wireline Well Tractor®

• Cased and open hole Coiled Tubing Well Tractor®

• Mechanical downhole services

Gathering data while driving forwards with a downhole convey-ance device has always been a desire among petroleum engineers.

In our efforts for continual improvement, we have gained the abil-ity to gather logging data on the downwards production logging pass, and we have implemented this concept with the launch of the DC powered wireline Well Tractor®.

Welltec® has also refined the ability to transfer mud pulse telemetry through subsurface drilling assemblies when using the Coiled Tub-ing Well Tractor® as a constant weight on bit mechanism.

We continue to push the boundaries of technology forward to add value to our customers’ activities.

W e d e l i v e r w h a t o u r c l i e n t s w a n t

– n o t w h a t w e t h i n k t h e y n e e d

Gathering Logging Data While Driving Forwards

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Well Tractor® Services

The development of deviated and horizontal wells has been limited by the available intervention methods. Drill pipe, snub - bing and coiled tubing have been the traditional methods of intervention, but based upon the large quantities of equipment needed to facilitate these types of operations, they are sometimes cancelled before they start.

Extending the reach of the traditional wireline is one of the most cost-saving and value-creating technologies in the well interven-tion industry applied in the last decade. This has enabled operators to carry out cost-efficient interventions, which have reduced AFE* costs and enabled an increase in oil and gas production.

*AFE - “Authority For Expenditure”

The original and revolutionary Well Tractor® technology has been developed and perfected by Welltec®. This technology has become the backbone of our company’s rapid rate of success and expan-sion. It is designed to complement the applications of both wire-line and coiled tubing interventions. The rapid rate of utilization of our technology across the globe is a clear indicator of its ability to reduce costs and enhance safety within the operations.

The Coiled Tubing Well Tractor® enables a smaller diameter of coiled tubing to be drawn further out into the well bore, beyond the point where coiled tubing buckles and stops.

The introduction of composite coiled tubing technology, in con-junction with the Coiled Tubing Well Tractor®, opens up a whole new intervention technique. By combining the two, greater well depths can be achieved.

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Wireline Well Tractor®

The wireline Well Tractor® is designed to convey any conventional wireline toolstring used in the well bore, while pulling the wire-line behind it. The cable and tool friction are therefore compensated and allow the wireline string to be driven forward.


The Coiled Tubing Well Tractor® is driven by the fluid pumped down through the coil. This powers the Coiled Tubing Well Tractor®, which pulls the coil downhole and pushes the toolstring ahead of it. The buckling effect will be reduced due to the pull at the end of the coil, resulting in extending the reach of the coiled tubing or the option to use a smaller coiled tubing.

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Run in Hole Procedures

After the Well Tractor® has been rigged up over the well at the end of the elec-tric wireline, it descends into the hole in a controlled manner. Due to gravity, it falls freely under the control of the wireline until the deviation of the well reaches a point where friction on the toolstring and cable prevents the string from progressing further.

The Well Tractor® is activated and the wheels come out of the tool body. The action of initiating the tool centralizes it in the well bore. Once the wheels establish contact with the casing, the Well Tractor® starts to move forward and deploys the logging tools into the horizontal well bore, taking the string beyond the original hang up point.

Once the toolstring reaches its objec-tive depth, the Well Tractor® is powered down. It now resembles a passive sinker bar included within the toolstring so the wireline toolstring can be pulled out of the well bore.

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Ballistics

• Perforating • Drill pipe back off/stringshots • Drill pipe severing

• Setting ballistic plugs • Pipe cutters • Selective Perforating Switches– a new, more reliable product

Drilling/Reservoir Evaluation

• Logging in cased and open hole • Opening and closing isolation valves • Milling isolation valves

• Drill pipe free point/back off • Chemical and explosive cutters • Tubing punch operations

• Cement bond logging • Gyro and cement bond log combinations • Fishing

• Magnetic ranging tool conveyance for SAGD heavy oil applications

• Radioactive source retrieval prior to carrying out “back off” operations

• Seismic applications

Production Evaluation and Workover

• Logging in cased and open hole • Plug setting/pulling non-ballistic • Shifting sliding sleeves

• Cleaning completions • Scale milling • Sand removal - bailing

• Slim hole logging • Fishing • Setting plugs

• Pipeline inspection/remediation • Nipple profile milling • Milling plugs of all types

What can be run on electric wireline in a vertical well

can be conveyed in a horizontal well with the Well Tractor®

Type of Jobs

Why Use a Wireline Well Tractor®?

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The wireline Well Tractor® allows logging tools to reach the end of the drilled horizontal or highly deviated well. It achieves this without the need for drill pipe or coiled tubing conveyance methods. It is a tethered, wireline deployed conveyance device, which pushes wireline toolstrings out to the end of the well bore.

With the introduction of intelligent wells onto the market, the need for developing a contingency intervention plan has increased. The Well Tractor® technology is ideally suited to cover this new market with the advent of Welltec’s mechanical services.

Prior to the introduction of the Well Tractor®, methods like drill pipe and coiled tubing were deemed the only feasible ways to access horizontal and highly deviated well bores. These methods require the mobilization of large quantities of heavy equipment and, subsequently, large numbers of personnel. This has a knock-on effect of increased operational risks along with increased time required to rig up and down the respec tive heavy equipment.

Introduction of

intelligent wells

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The introduction of the revolutionary Well Tractor® has catalyzed a radical increase in the application of wireline interventions in horizontal wells. This increase in wireline interventions has been a major influencing factor in the reduction of costs for intervention programs and also a major contributing factor in the reduction of operational hazards and risks. Furthermore, the safety of both people and equipment is enhanced when applying Well Tractor® technology.

The wireline Well Tractor® also embraces and perpetuates the mitigation of risks associated with environmental impact. It has proven itself to be a key change agent in the quest towards establishing zero emissions and discharges.

The key reason for the increased utilization of Well Tractor® technology has been the demonstration of a clear reduc-tion in operating costs for the oil companies. These cost savings have been achieved due to increases in operational efficiency and well optimizations.

Reduction of

operational hazards and risks

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The electric wireline Well Tractor® is currently available in three sizes: 2 1/8, 3 1/8 and 4 1/2 inch outside diameter. They are optimized for pulling force and speed in conjunction with the downhole comple-tion string.

To provide good communication with the winch driver, the surface control panels are normally positioned inside the wireline unit. They power and control the progress of the Well Tractor® when it is inside the well. Diagnostic data is also relayed back to the surface.

The Well Tractor® functions with an electric over hydraulic power relationship. The control, communications and power are electric, while the remaining parts and functions are hydraulic, allowing the use of a modular structure for the drive sections. This makes it pos-sible to change the Well Tractor’s traction by reducing or increasing the number of wheels needed to drive the Well Tractor®, without affecting the efficiency. The wheels are grouped into sections of

four wheels per section. To increase the pull force of the Well Trac-tor®, it is possible to add extra drive sections. As a result of changing the number of drive sections, speed can also be adjusted.

The wheels in each section are in line and pumped out with 180 degree phasing, incorporating two wheels on each side of the sec-tion. To ensure 360 degree wheel coverage inside the well bore or open hole, each drive section is subsequently phased 90 degrees to the previous drive section when assembled.

When the Well Tractor® is initially powered up, the wheels in each drive section are hydraulically deployed out of the tool body. The wheels start to rotate automatically once they emerge from the body of the Well Tractor®. Each wheel contains its own independent hydraulic motor, which facilitates the rotation of the wheels and the forward motion of the Well Tractor®.

The Wireline Well Tractor®

F a i l - S a f e F e a t u r e sThe passive and immediate fail-safe features prevent the Well Tractor® from getting stuck in the well bore with the arms and wheels extended. The arms and wheels will retract automatically when the tool is powered down or disconnected, providing a flush outside diameter tool.

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Top connector

Wheel sections

Bottom connector

Connects to mono or multi linelogging tools below the Well Tractor®

Wheel sections can be optimizedto maximize speed or force

Connects to the wireline throughmono or multi cable heads

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Wireline Well Tractor®

P e r f o r m a n c e

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The electrically driven Well Tractor® can be configured for speed and pow-er. It is powerful enough to push large open hole toolstrings into the open hole, and it is robust enough to withstand the shocks of perforating.

solutions for any operational and environmental challenge

With more than 13 years of experience, we can provide

We are only limited by our imagination

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Specifications 2 1 8 W e l l T r a c t o r ®

Well Tractor®

Body tool OD 2 1/8” 2 1/8” 2 1/8”

Length 16 ft** 17.5 ft** 17.5 ft**

Weight in air 175 lbs** 175 lbs** 175 lbs**

Completion ID, Small restrictions configuration 2.2” to 6.2” 2.2” to 8.4” 2.2” to 8.4”

Completion ID, Max. reach configuration 2.7” to 6.6” 2.8” to 9.2” 2.8” to 9.2”

Max. well pressure 25 kpsi 25 kpsi 25 kpsi

Max. temperature 400º F 400º F 400º F

Force vs. Speed, Standard configuration 600 lbs, 2,400 ft/hr 800 lbs, 2,400 ft/hr 800 lbs, 2,400 ft/hr

Force vs. Speed, Optimized force configuration 800 lbs, 1,200 ft/hr 1,000 lbs, 1,200 ft/hr 1,000 lbs, 1,200 ft/hr

Force vs. Speed, Optimized speed configuration 400 lbs, 3,600 ft/hr 600 lbs, 4,000 ft/hr 600 lbs, 4,000ft/hr

Dog leg 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID

Tensile strength 24,000 lbs 36,000 lbs 36,000 lbs

Compressive strength 30,000 lbs 30,000 lbs 30,000 lbs

Wireline configuration Mono, multi Mono, multi Mono, multi

*XR: Extended Reach, OH: Open Hole **Depending on configuration Specifications are subject to change without notice

218 Standard 218 XR* 218 OH*

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Well Tractor®

Body tool OD 3 1/8” 3 1/8” 3 1/8”

Length 18 ft** 19 ft** 19 ft**

Weight in air 365 lbs** 409 lbs** 409 lbs**

Completion ID, Small restrictions configuration 3.4” to 7.4” 3.4” to 9.6” 3.4” to 9.6”

Completion ID, Max. reach configuration 5.2” to 8.8” 4.2” to 12.6” 4.2” to 12.6”



Force vs. Speed, Standard configuration 1,200 lbs, 2,400 ft/hr 1,400 lbs, 2,400 ft/hr 1,400 lbs, 2,400 ft/hr

Force vs. Speed, Optimized force configuration 1,800 lbs, 1,200 ft/hr 2,400 lbs, 1,200 ft/hr 2,400 lbs, 1,200 ft/hr

Force vs. Speed, Optimized speed configuration 600 lbs, 3,600 ft/hr 800 lbs, 5,000 ft/hr 600 lbs, 5,000ft/hr

Dog leg 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID



Wireline configuration Mono, multi Mono, multi Mono, multi

*XR: Extended Reach, OH: Open Hole **Depending on configuration Specifications are subject to change without notice

318 Standard 318 XR* 318 OH*


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Well Tractor®

Body tool OD 4.5”

Length 18 ft*

Weight in air 440 lbs*

Completion ID, Small restrictions configuration 4.55” to 17.9”

Completion ID, Max. reach configuration 5.85” to 22”

Max. well pressure 25 kpsi

Max. temperature 400º F

Force vs. Speed, Standard configuration (3 wheel sections) 1,700 lbs, 4,000 ft/hr

Force vs. Speed, Optimized force configuration (4 wheel sections) 2,200 lbs, 3,000 ft/hr

Force vs. Speed, Optimized speed configuration (2 wheel sections) 1,200 lbs, 5,500 ft/hr

Dog leg 32°/100ft @ 5.00” ID

Tensile strength 42,000 lbs

Compressive strength 50,000 lbs

Wireline configuration Mono, multi

*Depending on configuration Specifications are subject to change without notice

412

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T h e 4 1 2 W e l l T r a c t o r ® w a s i n t r o d u c e d i n 2 0 0 9 a s a r e s p o n s e t o c l i e n t d e m a n d s f o r a l a r g e r v e r s i o n o f t h e t o o l .

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Why Use a Coiled Tubing Well Tractor®?

Do you need extra pul l force for your co i led tubing intervent ions in extended reach wel l s or p ipel ines?

In tortuous or extended reach wells, coiled tubing can buckle and the progress inside the well bore is halted. As a result, the forward motion of the coiled tubing stops while running in the hole. This is based on excessive amounts of friction. The relation-ship between the outside diameter of the coil and the internal diameter of the casing can also result in buckling of the coiled tubing. These common effects in extended reach wells limit the lateral reach capability of the coiled tubing and prevent the coil from reaching the toe of the well.

The fluid driven Coiled Tubing (CT) Well Tractor® extends the lateral reach capability of coiled tubing in horizontal and deviated wells.

The CT Well Tractor® pulls the coiled tubing into the well bore, over-coming the tendency of the coil to buckle and lock up. This allows

for the utilization of smaller diameter coil with less wall thickness or composite coiled tubing, thereby reducing the reel weight and removing the problems associated with crane lifting limitations.

The use of the CT Well Tractor® also removes the need for “stiffen-ing” the coiled tubing with pipe stiffeners. As a result, the life span of the coiled tubing is increased. Economic savings can be derived by using smaller quantities of chemical friction reducers when using the CT Well Tractor®.

For electrical operations on coiled tubing, it is possible to configure the CT Well Tractor® with a mono feed through, enabling real time logging, electrical setting of plugs, straddles and electrically deto-nated perforation carriers to be deployed on coil.

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Do you need extra pul l force for your co i led tubing intervent ions in extended reach wel l s or p ipel ines?

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The Coiled Tubing Well Tractor®

The Coiled Tubing Well Tractor® is currently available in three sizes - 2 1/2 inch, 2 1/8 inch and 3 1/8 inch outside diameter. They are optimized for pulling force, speed, flow rate and pressure loss in conjunction with the completion string.

The fluid pumped down through the coiled tubing powers the CT Well Tractor®. A turbine powered by the fluid drives the hydraulic system and moves the tool forward.

The CT Well Tractor® functions with a hydraulic over hydraulic power relationship. The controls and power source are complete - ly hydraulic, allowing the use of a modular structure for the drive sections. This makes it possible to change the CT Well Tractor’s trac-tion by reducing or increasing the number of wheels needed to drive the tool, without affecting the efficiency. The wheels are grouped into sections of four wheels per section. To increase the pull force of the CT Well Tractor®, it is possible to add extra drive sections. Chang-ing the number of drive sections allows for adjustment in speed.

The wheels in each section are in line and pumped out with 180 degree phasing, incorporating two wheels in each direction. To ensure 360 degree wheel coverage inside the well bore or open hole, each drive section is subsequently phased 90 degrees to the previous drive section when assembled.

When the CT Well Tractor® is initially powered up, the wheels in each drive section are hydraulically deployed out of the tool body. The wheels start to rotate automatically once they emerge from the body. Each wheel contains its own independent hydraulic motor, which facilitates the rotation of the wheels and the forward motion of the CT Well Tractor®.

F a i l - S a f e F e a t u r e sThe passive and immediate fail-safe features prevent the CT Well Tractor® from getting stuck in the well bore with the arms and wheels extended. The arms and wheels will retract automatically when the tool is powered down or disconnected, providing a flush outside diameter tool.

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Top connector

Wheel sections

Bottom connector

Turbine

Connects to tools below. Can be configured with a flow outlet or other applications

Wheel sections can be optimizedto maximize speed or force

Fluid pumped through the coiledtubing powers the turbine that powers the

CT Well Tractor®

Connects to the coiled tubing.It is possible to configure this

with an electrical feed through


P e r f o r m a n c e

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The maximum pull achieved with the 318 Coiled Tubing Well Tractor® is 3,500 lbs, which doubles up to 7,000 lbs in tandem configuration. It is also possible to achieve up to 10,000 lbs pulling force when stacking up three Coiled Tubing Well Tractors for extreme environments. By adjusting the fluid turbine system, the same pulling forces can be achieved when pumping fluid at low pump rates.

To increase the ability of the coiled tubing to travel further within the well bore, nitrogen can be used to create a neutrally buoyant state. A foam type mixture can be used for adjusting the density. By creating a neutrally buoyant state, the resistance to the CT Well Tractor® pulling the coil is reduced and the travel distance is subsequently increased. Experience has demonstrated that different mixtures have no influence on the pulling force.

Ability to gather real time, downwards logging data on surface at the same time as driving inside • the well bore. This can be achieved through mud telemetry or by deploying the CT Well Tractor® in “stiff wire” intelligent mode

Ability to double or triple the downhole power applied with the introduction of the tandem configura- • tion CT Well Tractor® designed to access extreme extended reach well bores, along with extended wash outs in the open hole well bore

Features of Coiled Tubing Technology

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Ability to reverse and drive backwards out of the hole • depending on the well and operational profile

Ability to drive in open hole as well as in cased hole•

Proven and verified with ballistic systems i.e. pressure pulse • detonation systems

Compatibility with wireless casing collar locator technology •

Acid stimulation•

Run in Hole Procedures

After the Coiled Tubing Well Tractor® has been rigged up over the well at the end of the coiled tubing, it descends into the hole in a controlled manner. The injector head controls the descent of the CT Well Tractor® inside the well bore. The injector head also assists in pushing the toolstring into the well bore to a certain extent. However, the effects of friction and buckling can prevent the string from reaching the toe of some extended reach wells.

Once the toolstring can go no further, when feeding the coil with the injector head, tension is applied to the coil and the coil string is raised up the well. The CT Well Tractor® is activated by pumping fluid or nitrogen inside the coil. As a result, wheels come out of the tool body. The action of initiating the CT Well Tractor® centralizes it in the well bore. Once the wheels establish contact to the casing or open hole, the tool starts to move forward and pulls the coiled tubing further into the horizontal well bore, taking the string beyond the original hang up point. When the toolstring reaches its objective depth, the CT Well Tractor® is powered down. It now resembles a passive sinker bar included within the toolstring so the proposed coiled tubing operation can be completed and the string can be pulled out of the well bore.

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Type of Jobs

The CT Well Tractor® works with different types of drive fluids, including drilling muds i.e. water, brine, acidizing fluids, pure nitrogen, co-mingled nitrogen/water or drilling mud.

With many years of experience, we can perform almost any service on coiled tubing including:

• Clean-outs

• Bleach cleaning & acidization

• Perforating

• Cement bond logging and other cased hole logging

• Plug pulling

• Stimulation and fracture activity

• Shifting sliding sleeves

• Milling operations

• Fishing operations and other mechanical downhole activities

• Side track drilling with coiled tubing - acting as a constant weight on bit

• Hydrate/paraffin plug removal

along with extended washouts in open hole, enabling operators to reach the toe of the well

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Tandem configurations can access extreme extended reach well bores

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Pressure Drop

The pressure drop is configuration dependent. Changes to the configuration of wheel sections and operational flow rates will result in changes to the pressure drop across the CT Well Tractor®.

Communication with tools beneath the CT Well Tractor® utilizing pressure pulses has proven to be reliable, despite the pressure drop across the CT Well Tractor®.This means that the CT Well Tractor® is fully compatible with logging tools, orientation tools and perforation devices that are initiated by the application of pressure pulse sequences.0

100

200

300

400

500

600

700

800

900

1000

0 0,5 1 1,5 2 2,5 3

Flow Rate (bbl/min)

Pres

sure

Dro

p W

ater

(p

si)

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CT Well Tractor®

Body tool OD 2 1/8” 2 1/2” 3 1/8” 3 1/8”

Length 18 ft** 14.5 ft** 17 ft** 17 ft**

Weight in air 150 lbs** 370 lbs** 400 lbs** 400 lbs**

Completion ID, Small restrictions configuration

2.2” to 8.4” 2.6” - 9.2” 3.4” to 7.4” 3.4” to 9.6”

Completion ID, Max. reach configuration

2.8” to 9.2” 3.4” - 10.1” 5.2” to 8.8” 3.7” to 12.6”

Max. well pressure 25 kpsi 25 kpsi 25 kpsi 25 kpsi

Max. temperature 400º F 400° F 400º F 400º F

Max. speed 2,700 ft/hr** 4,200 ft/hr** 3,600 ft/hr** 3,600 ft/hr**

Traction force 1,700 lbs @ 0.8 bbl/min** 3,000/6,000***lbs @ 0.8 bbl/min** 3,500/7,000*** lbs @ 1.4 bbl/min** 3,500 lbs @ 1.4 bbl/min**

Max. flow rate 2.0 bbl/min 1,7 bbl/min 3.0 bbl/min 3.0 bbl/min

Flow rate, configured 0.4 - 1.4 bbl/min 0.7 – 1.5 bbl/min 0.6 - 3.0 bbl/min 0.6 - 3.0 bbl/min

Dog leg 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID 32º/100 ft @ 4.00” ID

Tensile strength 38,000 lbs 37,000 lbs 42,000 lbs 42,000 lbs

Compressive strength 50,000 lbs 41,000 lbs 50,000 lbs 50,000 lbs

*TV: Top Vented, TF: Through Flow **Depending on configuration ***Tandem configuration Specifications are subject to change without notice

Specifications C o i l e d T u b i n g W e l l T r a c t o r ®

218 TV* 212 TF* 318 TV*318 TF*

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Mechanical Downhole ServicesElectric wireline tractor technology has expanded well beyond the initial scope of conveying logging tools into horizontal cased wells. Redefining the current use of electric wireline is seen as one of the more exciting areas to develop. At Welltec®, we are focus-ing on applying this technology and we are viewed by the industry as ground-breaking in the application of new techno logy.

Our mechanical intervention services allow operators to perform the following electric wireline operations:

• Opening and closing zonal isolation valves• Manipulating sliding door valves• Setting straddle packers for water shut-offs• Setting and retrieving gas lift valves• Setting and retrieving mechanical plugs• Fishing electric line and slick line tools

• Removing scale bridges• Removing debris fill• Removing sand bridges• Cleaning nipple seats prior to setting

straddle packers• Cleaning sub surface safety valves

• Cement plug drilling • Removing Inconel and Superchrome

isolation valves• Scale milling• Removing barium sulfate bridges in dry gas

wells• Establishing flow paths through flapper

and ball valves• Removing downhole barriers• Cast iron bridge plug milling • Composite bridge plug milling• Nipple profile milling• Removing downhole debris barriers

Designed to apply a focused force downhole, the Well Stroker® anchors itself against the tubing and applies a bi-directional force on the end of the electric wireline. This makes it possible to apply up to 16 tons of force, strategically located on the end of the electric wireline in the horizontal well bore. The benefits of providing the Well Stroker® is that it can provide high pushing and pulling forces down-hole where and when required in order to easily set and pull plugs, shifts sleeves and valves.

The Well Key® is operated in conjunction with the Well Stroker® and is designed to open and close multiple sliding sleeves in a single run. When the tool is run in the hole, the keys are retracted in the body of the tool. The tool is selective and can be activated at a required depth where the keys will expand and engage a nomi nated pro-file. The Well Tractor® conveys the toolstring to target depth where the Well Key® engages the nominated profile, and the Well Stroker® applies the necessary force to actuate the sliding sleeve.

Well Stroker® Well Key®

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In essence, the Well Cleaner® can be described as a hydrostatic bail-er system that is deployed on the end of the electric wireline. The selective tool can be used to remove sand and debris from the inside of the completion string or to remove debris that has built up on top of downhole isolation barriers. The Well Cleaner® is suited to complement the Well Miller® in scale milling operations. With the recent introduction of the Well Cleaner® PST, it is possible to recover up to 500 liters of sand per run.

Representing a technological revolution, the Well Miller® has been designed to mill and drill a wide variety of downhole obstructions. Bit designs have been developed to pressure equalize isolation valves and plugs and regain flow paths through isolation valves. The Well Miller® complements the removal of downhole barriers by drill-ing on the end of electric wireline. Other milling features include milling of cement plugs, removal of scale bridges and nipple profile milling.

Well Cleaner® Well Miller®

Well Stroker®

Well Key®

Well Cleaner®

Well Miller®

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The different aspects of mechanical interventions such as gas lift valve retrieval/deployment, setting and retrieving mechanical plugs, manipulating sliding side door devices and opening zonal isolation valves have historically been in the domain of slickline and coiled tubing.

By employing the Well Tractor® in conjunction with the Well Stro-ker®, operators are able to carry out any type of slickline operation in horizontal wells on electric wireline.

With the Well Stroker®, it is now possible to open and close zonal isolation valves and sliding side door valves. Setting and retrieving gas lift valves in highly deviated side pocket mandrels is also possible by incorporating the use of a standard kick-over tool. Retrievable

plugs can be retrieved on standard wireline with the use of the Well Stroker®.

The force of the Well Stroker® can replace the use of explosives in packer setting applications, providing enhanced safety and easier logistics.

Case history: setting bridge plugThe Well Stroker® is the holder of several world records. In July 2006, the tool was used to set a bridge plug under 300 Sm3/D X-flow off-shore Norway, which was a world’s first. The result of the job was reduced water rates from 2150 to 150 m3/sd. Oil rates were main-tained while water cut was reduced from 90% to 45%.

Why Use a Well Stroker®?

on standard wireline with the use of the Well Stroker®

Retrievable plugs can be retrieved

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Recent developments have shown that it is feasible to perform mechanical interventions in horizontal wells by applying standard electrical wireline in conjunction with Well Stroker® technology.

Since the Well Stroker® was introduced to the market in 2002, the tool has been used to shift sliding sleeves, change out gas lift valves, set and retrieve mechanical plugs and to conduct fishing operations. The Well Stro-ker® can open and close several sliding sleeves in one run. The advantage is that all these operations can be done without a rig.

The Well Stroker® is normally run in conjunction with the Well Key® or a mechanical shifting tool and the Well

Tractor®, which conveys the Well Stroker®/shifting tool to the desired depth i.e. zonal isolation valve or packer.

When the Well Stroker® is activated, it anchors itself to the tubing using a fail-safe hydraulic system. Once anchored, it applies an axially focused force, up to 33,000 lbs, through the attached shifting tool. The direction of movement is controlled from the surface each time it is activated.

The design of the Well Stroker® is based on the same fail-safe design that is used for the Well Tractor®. Should an operational problem occur, the Well Stroker® is designed to default into safety mode. The anchors will collapse, preventing the tool from getting stuck.

The Well Stroker®

T h e W e l l S t r o k e r ® i s t h e e q u i v a l e n t o f a d o w n h o l ep i s t o n t h a t c a n p r o d u c e a n a x i a l l y f o c u s e d f o r c e u pt o 3 3 , 0 0 0 l b s .

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Anchor section

Stroker rodThe Well Stroker® rod providesthe axially focused force

Anchors the Well Stroker® to the completionbefore the axially focused force provided bythe stroker rod is applied

Bottom connector

Connects to either a Well Key®

or a third party shifting tool

Top connector

Connects to theWell Tractor® aboveor cable

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Why Use a Well Key®? Top connector

Bull nose

The bull nose can be replaced with abottom connector for connection oflogging tools below the Well Key®

Connects to theWell Stroker® above

The Well Key® offers the flexibility to run an intelligent shifting tool. The tool provides maximum flexibility in completion design for optimized production and intervention strategy. The Well Key®

complements the concept of intelligent completions that do not require intervention.

Case history: opening isolation valveAnything that slickline can achieve in a vertical well can now be achieved in a horizontal well on the end of electric wireline. For instance, at a sub sea installation, the Well Key® was used in con-junction with the Well Stroker® to open a partly closed isolation valve on electrical wireline. As a result of the operation, full rate production was achieved. Additionally, substantial working hours were saved.

Shifting key

The Well Key® can be fitted with two customized shifting keys, enabling shifting upwards and downwards

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The Well Stroker®

with the Well Key®?

The Well Key® is run in conjunction with the Well Stroker®, which applies the required force to shift a valve once the Well Key® has latched into the shifting profile.

When the Well Key® is located at the nominated depth, it is acti-vated and put into “search mode”. Depending on the direction in which the valve has to be manipulated, the Well Key® is pushed by the Well Tractor® or pulled by the wireline until the Well Key® latch-es into the shifting profile.

Once the Well Key® has located the shifting profile and has latched into it, the Well Stroker® is powered up to shift the valve.

When the valve has been shifted, the Well Key® will disengage from the shifting profile and continue in search mode.

When all valves have been shifted, the search mode will be termi-nated. The keys retract into the tool, allowing the wireline string to be pulled out of the hole.

The use of active hydraulics while the key is in search mode prevents the tool from getting stuck in a sliding sleeve since the nature of the key is inactive. The keys on the Well Key® can be configured according to the specific profile, ensuring compatibility to a range of downhole valves.

as a command controlled shifting tool for downhole valves

To compliment the Well Stroker®, the Well Key® has been developed

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Body tool OD 2 1/8” 3 1/8” 3 1/8” 3 3/8”

Length 15.3 ft 15 ft 22 ft 13.7 ft

Weight in air 180 lbs 220 lbs 240 lbs 250 lbs


2.19” - 2.7” 3.2” - 4.7” 3.2” - 4.7” 3.45” - 4.7”


2.5” - 3.2” 5.35” - 6.85” 5.35” - 6.85” 5.35” - 6.85”

Pull/Push force 8,000 - 12,000 lbs** 20,000 lbs 20,000 lbs 33,000 lbs

Stroke length 8” 14” 52” 8”

Surface read out - Yes*** Yes*** Yes***

Max. well pressure 25 kpsi 25 kpsi 25 kpsi 25 kpsi

Max. temperature 400º F 400º F 400º F 400º F

Tensile strength 36,000 lbs 42,000 lbs 42,000 lbs 42,000 lbs

Compressive strength 30,000 lbs 50,000 lbs 50,000 lbs 50,000 lbs

*XR: Extended Reach, XS: Extra Strength **Tool configurable ***Depending on configuration Specifications are subject to change without notice

218 Standard 318 Standard 318 XR*Well Stroker®

Specifications W e l l S t r o k e r ®

338 XS*

Surface read out - Yes - Yes

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Well Key®

Body tool OD 2 1/8” 3 1/8” 3 1/2”

Length 12 ft 11 ft 11 ft

Weight in air 80 lbs 160 lbs 160 lbs


2.4” - 5.5” in steps of 0.7”

3.2” - 3.9” 3.62” - 4.28”


5” 5.7” 5.5” to 6.2”





Cable Applicable to all cable types approved for Well Tractor® operation

Specifications are subject to change without notice

218 Standard

Specifications W e l l K e y ®

318 Standard 312 Standard

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Why Use a Well Cleaner®?

The Well Cleaner® offers the ability to selectively clean areas of the well bore and remove debris from inside the well. With the latest developments for this system, it is possible for electric wireline cleaning systems to remove up to 500 liters of sand per run from a well (depending on bailer size, type of sand and rig up height).

It is being viewed by the operating community as a major breakthrough in the application of ground-breaking technology, reducing the cost of well intervention whilst enhancing production.

Case history: cleaning on wirelineWhen attempting to run a PLT in a 90° deviated well, an operator had to cancel the job due to sand production early in the wellbore. The Well Tractor®, Welltec Release Device® and Well Cleaner® PST (Power Suction Tool) configured with 20.5 ft 4” bailer sections were run in hole and successfully recovered 250 liters of sand over the course of 16 runs.

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the Well Cleaner® is the ideal system

Due to the highly modular construction,

for removing sand, scale and other types of debris downhole

The Well Cleaner®

The Well Cleaner® has been designed to remove built-up scale, sand and debris from the inside of the completion pro-file. It can be configured to fit specific well conditions, collect specified amounts of sand in dry gas wells or dislodge scale from inside the tubing wall. Depending on well conditions and the application, we offer liquid environment and dry environment cleaning systems.

Areas of operation for the Well Cleaner® are cleaning nipple seats prior to setting straddle packers or picking up sand inside of the well bore. All Well Cleaner® operations are run on the Well Tractor®, which applies the constant weight on bit and holds the reactive torque away from the electric wireline.

To optimize the cleaning of different materials and downhole completion items, it is possible to change the type of cleaning head attached to the end of the Well Cleaner®. Cost-savings are obtained as the tool can be configured to clean even very small areas of the well bore selectively.

W e l l C l e a n e r ® o p e r a t i o n s a r e r u n i n c o n j u n c t i o n w i t ha W e l l T r a c t o r ® , w h i c h a p p l i e s t h e c o n s t a n t w e i g h t o nb i t a n d c o n t r o l s t h e r e a c t i v e t o r q u e .

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Pump/outlet

Filtration

The capacity of this unit can be configured forthe expected amount of debris to be collected

Provides the circulation through thefiltration unit in liquid filled wells

Cleaning Head

Several cleaning heads are availabledepending on the application

Top connector

Connects to theWell Tractor® above

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Recent Developments

Well Cleaner® PST LD

The Well Cleaner® PST (Power Suction Tool) HV (High Vacuum) is the most effective sys-tem for certain debris sizes and large drawdown applications.

The Well Cleaner® PST LD (Large Debris) is the most effective wireline cleaning system in the industry for removing sand fill in vertical wells. It can handle various types and sizes of debris in a single run.

The Well Cleaner® PST HF (High Flow) is the cleaning system of choice for long bailer sec-tions in horizontal wells because of its high flow rate.

The Well Cleaner® WBH (Wishbone Honer) is designed to clean finer materials from tubular walls, such as mandrels and profiles, with pinpoint accuracy.

The Well Cleaner® SVB (Safety Valve Brush) is an exceptionally precise cleaning device for removing scale and debris from sub surface safety valves while ensuring that full integrity on downhole jewelry is maintained.

Well Cleaner® PST HV

Well Cleaner® WBH

Well Cleaner® SVB

W e l l t e c ® r e c e n t l y i n t r o d u c e d a s e r i e s o f n e w d e v e l o p m e n t s w i t h i n t h e W e l l C l e a n e r ® f a m i l y o f t o o l s

Well Cleaner® PST HF

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1.

2.

3.

4.

5.

6.

7.

8.

9.

Well Cleaner1. ® WBH for large area honingWell Cleaner2. ® WBH for small profile honingWell Cleaner3. ® WBH for scale under-reamingWell Cleaner4. ® SVB for safety valve cleaningWell Cleaner5. ® DE for dry environments

Well Cleaner6. ® PST HV for liquid environmentsWell Cleaner7. ® PST LD for liquid environmentsWell Cleaner8. ® PST HF for liquid environmentsWell Cleaner9. ® PST HF for liquid environments

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Body tool OD 3 1/8” 3 1/8” 3 1/8” 2 1/8” Body tool OD 3 1/8” 3 1/8” 3 1/2”

Length 14.7 ft** 12 ft** 12 ft** 26.6 ft** Length 10.3 ft** 23 ft** 25 ft**

Weight in air 200 lbs** 220 lbs** 220 lbs** 220 lbs** Weight in air 94 lbs** 551 lbs** 220 lbs**

Completion ID 3.4” - 12.6” 3.4” - 12.6” 3.4” - 12.6” 2.19” - 8.2” Completion ID 3.4” - 12.6” 3.4” - 8” anchor limit 3.6” - 9.0”

Debris volume/5.6 ft bailer 6.38 L - 12.49 L** 6.38 L - 12.49 L** 6.38 L - 12.49 L** 2.52 L - 5.70 L** Debris volume/5.6 ft bailer - - 8.10 L**

Available bailer sizes*** 3 1/8”, 3 1/2”, 3 3/4”, 4” and 4 1/4”

3 1/8”, 3 1/2”, 3 3/4”, 4” and 4 1/4”

3 1/8”, 3 1/2”, 3 3/4”, 4” and 4 1/4”

2 1/8”, 2 1/2”, 2 3/4”and 3”

Available bailer sizes*** - - 3 1/2”

Flow rate 380 L @ 0 bar** 120 L @ 0 bar** 200 L @ 0 bar** 170 L @ 0 bar** Stroke lengthBrush diameter

-2 1/8” - 3 1/8”

12”6”

--

Debris size**** 0.0025”-3” 0.0025”-3” 0.0025”-3” 0.0025”-1.5” Debris size - - 0.004” - 2.36”

Max. well pressure 25 kpsi 25 kpsi 25 kpsi 20 kpsi Max. well pressure 25 kpsi 25 kpsi 25 kpsi

Max. temperature 400º F 400º F 400º F 400º F Max. temperature 400º F 400º F 400º F

Tensile strength 38,000 lbs 38,000 lbs 38,000 lbs 24,000 lbs Tensile strength 42,000 lbs 38,000 lbs 38,000 lbs

Compressive strength 50,000 lbs 50,000 lbs 50,000 lbs 50,000 lbs Compressive strength 50,000 lbs 50,000 lbs 50,000 lbs

318 LD*Well Cleaner® PST*

Specifications W e l l C l e a n e r s f o r l i q u i d e n v i r o n m e n t s

318 HF*318 HV* 218 HF*

*PST: Power Suction Tools, LD: Large Debris, HF: High Flow, HV: High Vacuum **Depending on configuration

***Other sizes available by special request ****Large object jaws and chamber available on request

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Body tool OD 3 1/8” 3 1/8” 3 1/8” 2 1/8” Body tool OD 3 1/8” 3 1/8” 3 1/2”

Length 14.7 ft** 12 ft** 12 ft** 26.6 ft** Length 10.3 ft** 23 ft** 25 ft**

Weight in air 200 lbs** 220 lbs** 220 lbs** 220 lbs** Weight in air 94 lbs** 551 lbs** 220 lbs**

Completion ID 3.4” - 12.6” 3.4” - 12.6” 3.4” - 12.6” 2.19” - 8.2” Completion ID 3.4” - 12.6” 3.4” - 8” anchor limit 3.6” - 9.0”

Debris volume/5.6 ft bailer 6.38 L - 12.49 L** 6.38 L - 12.49 L** 6.38 L - 12.49 L** 2.52 L - 5.70 L** Debris volume/5.6 ft bailer - - 8.10 L**

Available bailer sizes*** 3 1/8”, 3 1/2”, 3 3/4”, 4” and 4 1/4”

3 1/8”, 3 1/2”, 3 3/4”, 4” and 4 1/4”

3 1/8”, 3 1/2”, 3 3/4”, 4” and 4 1/4”

2 1/8”, 2 1/2”, 2 3/4”and 3”

Available bailer sizes*** - - 3 1/2”

Flow rate 380 L @ 0 bar** 120 L @ 0 bar** 200 L @ 0 bar** 170 L @ 0 bar** Stroke lengthBrush diameter

-2 1/8” - 3 1/8”

12”6”

--

Debris size**** 0.0025”-3” 0.0025”-3” 0.0025”-3” 0.0025”-1.5” Debris size - - 0.004” - 2.36”

Max. well pressure 25 kpsi 25 kpsi 25 kpsi 20 kpsi Max. well pressure 25 kpsi 25 kpsi 25 kpsi

Max. temperature 400º F 400º F 400º F 400º F Max. temperature 400º F 400º F 400º F

Tensile strength 38,000 lbs 38,000 lbs 38,000 lbs 24,000 lbs Tensile strength 42,000 lbs 38,000 lbs 38,000 lbs

Compressive strength 50,000 lbs 50,000 lbs 50,000 lbs 50,000 lbs Compressive strength 50,000 lbs 50,000 lbs 50,000 lbs

318 WBH* 312 DE*318 SVB*Well Cleaner®

Specifications S p e c i a l i t y W e l l C l e a n e r s

* WBH: Wishbone Honer, SVB: Safety Valve Brush, DE: Dry Environment ** Depending on configuration *** Other sizes available by special request


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Why Use a Well Miller®?

T h e e l e c t r i c a l l y d r i v e n W e l l M i l l e r ® m a k e s i t p o s s i b l e t o m i l l a n d d r i l l o n w i r e l i n e

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Our milling technologies offer the opportunity to perform heavy-duty well intervention with a light touch.

The Well Miller® has revolutionized technology for the oil and gas industry as it enables operators to remove downhole isolation valves or barriers by milling and/or drilling on wireline.

Various milling bits, all designed by Welltec®, are available for the Well Miller®. Welltec® also designs custom-made milling bits that enable the tool to engage any obstruction downhole.

The Well Miller® has been used to remove isolation valves made of Inconel and Superchrome. It has also been used to remove Barium Sulfate scale bridges in dry gas wells.

In new wells, the Well Miller® has been utilized to establish flow paths through isolation valves, such as flapper valves and ball valves, which have failed to open. The flow paths have been established by cutting out and retrieving a section of the valve that would not open.

Case history: milling of flapper valveAt a platform in the UK part of the North Sea, the Well Miller® was used to drill a 1” hole through a flapper valve, allowing full injection rates required for chemical squeezes. Total drilling time was 20 minutes, which was a considerable time saving compared to coiled tubing milling.

T h e e l e c t r i c a l l y d r i v e n W e l l M i l l e r ® m a k e s i t p o s s i b l e t o m i l l a n d d r i l l o n w i r e l i n e

In many situations, coiled tubing cannot apply the neces-sary weight on bit to deal adequately with scale build-up. Our wireline milling services utilize the Well Tractor® to ensure a constant, optimized weight on bit regardless of the extension of the well.

The cutting face is specifically designed by Welltec® to remove the obstruction in the well bore.

The Well Miller® provides operators with the ability to carry out “keyhole surgery” in their completions on the end of electric wireline. This has a radical impact upon the cost of mobilizing conventional intervention equipment.

Depending on the application, the Well Miller® also fea-tures the ability to pick up the cuttings generated dur-ing the milling process, which means that no debris is left downhole.

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The Well Miller®

W i t h i t s a b i l i t y t o d r i l l a n d m i l l o n w i r e l i n e ,t h e W e l l M i l l e r ® r e p r e s e n t s t h e n e x t g e n e r a t i o no f i n t e r v e n t i o n t e c h n o l o g y .

The gear ratio can beconfigured depending on the

milling bit requirements

T h e W e l l M i l l e r ® p r o v i d e s r e v o l u t i o n a r y c a p a b i l i t i e s t o o i l a n d g a s c o m p a n i e s t h a t s e e k t o i n c r e a s e p r o d u c t i o n w h i l e r e d u c i n g c o s t s .

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Top connector

Connects to theWell Tractor® above

Milling bit

Several bit designs are availabledepending on the application

Gear

The gear ratio can beconfigured depending on the

milling bit requirements

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I n t r o d u c i n g c u t t i n g e d g e t e c h n o l o g y : m i l l i n g n i p p l e p r o f i l e s a n d t u b i n g c o l l a p s e s o n w i r e l i n e

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The Well Miller® NPR

Welltec® has designed, manufactured and tested a groundbreaking solution for milling nipple profiles; the Well Miller® NPR (Nipple Pro-file Removal) This solution includes a brand new milling bit that has been developed for the Well Miller® in order to expand the ID of the nipple profile from 3.895” to 4.45” in one run.

The purpose of this new development is to expand the nipple profile IDs in order to allow e.g. straddle packers to pass through. However, the Well Miller® NPR can also be applied to partially deformed pipe due to collapse as well as to many other restrictions in the tubu-lars. For instance, the Well Miller® NPR was mobilized offshore and removed a tubing collapse in a 7” 26# tubing. The whole operation from rig up to rig down took six hours.

The Well Miller® NPR provides precision milling without mobilizing heavy surface equipment for circulating and handling fluids and therefore, no risk of damaging the reservoir.

This new tool setup, electronics and software enable us to solve problems never before solved on wireline.

Case history: world’s first nipple milling on wirelineThe world’s first jobs took place in Indonesia in 2008 where an oper-ator needed to remove a number of nipple profiles. Initially, they had considered coiled tubing but this would require a well kill first, which made Welltec’s lightweight wireline solution the preferred service.

Welltec® mobilized with the Well Miller® NPR to enlarge the nipple profiles in eight wells and clear the way for further intervention services. The operator avoided a well kill and had tremendous cost savings compared to CT. Total operating time was 10.5 days and involved less equipment and less people.

As of July 2009, Welltec® has successfully enlarged the ID of 16 Super 13 Chrome nipples from 3.697 and 3.570 to 3.7” for this operator.

I n t r o d u c i n g c u t t i n g e d g e t e c h n o l o g y : m i l l i n g n i p p l e p r o f i l e s a n d t u b i n g c o l l a p s e s o n w i r e l i n e

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Introducing the possibility to mill out obstructions and remove them to the surface, the Well Miller® RCB (Reverse Circulating Bit) stands for a technological breakthrough. When wells display lost production due to mineral deposits, the Well Miller® RCB can mill and also recover the debris in a bailer system. It is also the ideal solution to remove tempo-rary cement plugs.

The Well Miller® RCB can be mobilized in a matter of hours together with the conveyance solution and required field personnel. This rapid mobilization makes pro-active maintenance of the well site attractive and avoids the cost of a full coiled tubing spread operation.

With its unique ability to operate across any depth range, pipe size, high temperature and pressure as well as flowing conditions, the Well Miller® RCB ensures that the well is quickly ready for production, exposed to fewer risks and eliminates a larger intervention in the well.

Furthermore, the Well Miller® RCB reduces the time and man power required for performing services, onshore as well as offshore. Com-pared to coiled tubing or rig work-over operations, savings in opera-tion time and personnel can be reduced by more than 2/3. Combined with quick returns on investment, this makes the Well Miller® RCB a highly advantageous solution.

Case history: preventing costly recompletionDue to suspension of a tubing collapse, an operator was about to pull the completion in a deviated well. As a last attempt prior to pulling the completion, Welltec’s newly developed Well Miller® RCB was called out. Configured with a 3.75” milling bit and two bailer sections, the system successfully milled from 9,890 to 9,940 ft in 20 minutes.

After one run, seven liters of debris were recovered and the well was drifted open to 3.75” ID, proving that the tubing was intact. Mobiliza-tion was extremely fast for this job; from the meeting with the client until the tools were put onboard a helicopter only took six hours.

The Well Miller® RCB M i l l i n g o n w i r e l i n e a n d r e t r i e v i n g d e b r i s t o t h e s u r f a c e

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Specifications W e l l M i l l e r ®

Body tool OD 2 1/2” 3 1/8” 3 1/2” 3 1/2” 3.5”

Length 10 ft** 10.4 ft - 12.2 ft** 10.4 ft - 12.2 ft** 25 ft** 12.2 ft**

Weight in air 70 lbs** 95 lbs** 95 lbs** 220 lbs** 95 lbs*

Completion ID 2.6”** 3.4”** 3.6”** > 3.6“ 3.6”**

Type FV, BV, PR*** FV, BV, SB, PR*** FV, BV, SB, PR*** NPR*

Debris volume/sections 6 liters**

Max. no. of bailer sections 3 **

Debris size 12 mm – 300 µm

Max. well pressure 25 kpsi 25 kpsi 25 kpsi 25 kpsi 25 kpsi

Max. temperature 400º F 400º F 400º F 400° F 400º F

Tensile strength 36,000 lbs 42,000 lbs 42,000 lbs 38,000 lbs 42,000 lbs

Compressive strength 30,000 lbs 50,000 lbs 50,000 lbs 50,000 lbs 50,000 lbs

* RCB: Reverse Circulating Bit, NPR: Nipple Profile Removal ** Depending on configuration *** FV: Flapper valve, BV: Ball valve, SB: Scale bridge, PR: Pressure release


212 StandardWell Miller® 318 Standard 312 Standard 312 RCB* 312 NPR*

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Welltec Release Device®

The Welltec Release Device® (WRD) is a command controlled release sub, which can be placed anywhere on the wireline tool-string. It can be placed below the Well Tractor® or directly below the cable head. The WRD is designed to facilitate maximum flexibility and can be used in multiple positions at the same time, assuring optimum reliability and dependability. It is possible to use multiple Welltec Release Devices® on the same toolstring as the tools are set to release at different times.

T h e W e l l t e c R e l e a s e D e v i c e ® c a n b e a c t u a t e d i n o n e

o f t w o w a y s :

a) Command from surfaceb) A timer-executed release will occur after the toolstring has been static and not powered for a pre-specified period of time

After the WRD is released, a fishing profile is provided on the toolstring, which is left downhole. This allows conventional fish-ing operations to take place.

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Specifications W e l l t e c R e l e a s e D e v i c e ®

Body tool OD 2 1/8”

Length 3.8 ft

Weight in air 22 lbs

Min. completion ID 2.19”

Max. well pressure 20 kpsi/400psi

Max. temperature 300º F

Tensile strength 42 Klbs

Compressive strength 42 Klbs

Wireline configuration Slickline, mono, multi

Release control Timer/Surface command*

* Depending on configuration Specifications are subject to change without notice

218 StandardWelltec Release Device®

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Copyright © 2009 Welltec A/SAll rights reserved. No part of this publication may be reproduced in any form without the written permission of Welltec A/S.

Welltec, Well Tractor, Well Stroker, Well Key, Well Cleaner, Well Miller and Welltec Release Device are trademarks of Welltec A/S and may be registered in Denmark and/or in other countries.All products are protected by patents or patent pending.

Anchorage

Prudhoe Bay

Calgary

Bonnyville

Ciudad del CarmenMaturín

Aberdeen

Bergen

AllerødMoscow

Abu Dhabi

Luanda

Kuala LumpurLabuan

Perth

Macaé

Río de Janeiro

Haugesund

Stavanger

LagosPort Harcourt

Jakarta

Baku

Al-Khobar

Vung TauKakinada

Pointe-Noire

Mumbai

MidlandHouston

Fort Worth

Houma

FarmingtonDenver

Conway

Minot

Grande Prairie

Balikpapan

Worldwide Contacts F o r f u r t h e r d e a i l s g o t o w e l l t e c . c o m

-

79

Europe, Russian Federation & CIS- Area VP Alex McKay

Welltec Denmark Welltec Oilfield Services (Azerbaijan) Ltd. Welltec UK Ltd. Welltec Oilfield Services (RUS) LLC.

Gydevang 253450 AlleroedDenmark

Ahad Yagubov Street 87BakuAzerbaijan, AZ-1003

Silverburn CrescentBridge of DonAB23 8EWUK

40/4, Narodnogo Opolchenia str,Moscow, RF, 123298Russia

Phone: +45 48 14 35 14Fax: +45 48 14 35 18

Phone: +99 (412) 491 2210Fax: +99 (450) 491 2211

Phone: +44 (0) 1224 708705Fax: +44 (0) 1224 704625

Phone: +7 (499) 942 5838Fax: +7 (499) 943 5938

Jesper VingeBDM Continental [email protected]

Alex McKayArea VP Europe, Russian Federation & [email protected]

Mike AffleckGeneral [email protected]

Sergey BeryuschevDeputy General Director, [email protected]

Norway - Area VP Terje Skeie

Subsea Interventions- Global Subsea BDM Ole Eddie Karlsen

Welltec Norway Welltec

Kokstadflaten 23Postbox 147N-5863 BergenNorway

Stoltenberggt.15527 HaugesundNorway

Phone: +47 5592 6300Fax: +47 5592 6301

Phone: +47 92 46 55 52Fax: +47 52 86 40 81

Norman SkeieOperations [email protected]

Ole Eddie KarlsenGlobal Subsea [email protected]

Worldwide Contacts F o r f u r t h e r d e a i l s g o t o w e l l t e c . c o m

80

Asia Pacific - Area VP Joe Collins

Welltec Oilfield Services Pty. Ltd. Welltec Oilfield Services Sdn.Bhd. (Malaysia)

P.T. Welltec Oilfield Services (Indonesia)

Welltec Oilfield Services (India)

Trading and delivery address:Units 3/4, 80 Forsyth street,O’Connor, PerthWestern Australia 6163

Postal address:Welltec Oilfield Services Pty. Ltd.PO Box 1655,Melville, PerthWestern Australia 6956

A-1-4, Block-A, Megan Ave-nue 1No 189, Jalan Tun Razak50400 Kuala LumpurMalaysia

Graha Kapital Building 5th Floorsuite 506Jl. Kemang Raya No. 4Jakarta Selatan 12730Indonesia

701, Meadows, Sahar Plaza ComplexM.V.Road, Andheri EastMumbai - 400 059India

Phone: +61 (0) 8 933 15355 +61 (0) 8 933 15379Fax: +61 (0) 8 933 15322

Phone: +603 2171 1949 +603 2171 1415 +603 2121 1915Fax: +603 2171 1615

Phone: +62 21 719 8750Fax: +62 21 718 0781

Joe CollinsArea VP [email protected]


Antonius AjiGeneral [email protected]

Mohan VaidhyanathanGeneral [email protected]

Middle East and Africa - Area VP Christian Krüger

Welltec Oilfield Services (Saudi Arabia) Limited

Welltec Middle East Welltec Oilfield Services (Nigeria) Ltd.

Welltec Angola, Lda.

Shoaibi Building King Abdulaziz St.P.O.Box 1280 Al-Khobar 31952 Kingdom of Saudi Arabia

Trading and delivery address:Plot No. 34, Sector M38Mussafah, Abu DhabiUnited Arab Emirates

Postal address:Welltec Middle EastPO Box 4118, Abu DhabiUnited Arab Emirates

31A Adeniyi Jones AvenueIkeja, LagosFederal Republic of Nigeria

Rua 6 - I.L. BoavistaSonils BaseLuanda - Angola

Phone: +966 3 894 1700 Phone: +9712 5511140/+9712 5511961 Fax: +9712 5511962

Phone: +234 (805) 509 34778

Mazen Al-OmariGeneral [email protected]


Abiodun AkinsanyaGeneral [email protected]

Brad ErvinGeneral [email protected]

81


Welltec Oilfield Services Pty. Ltd. Welltec Oilfield Services Sdn.Bhd. (Malaysia)

P.T. Welltec Oilfield Services (Indonesia)


Trading and delivery address:Units 3/4, 80 Forsyth street,O’Connor, PerthWestern Australia 6163

Postal address:Welltec Oilfield Services Pty. Ltd.PO Box 1655,Melville, PerthWestern Australia 6956

A-1-4, Block-A, Megan Ave-nue 1No 189, Jalan Tun Razak50400 Kuala LumpurMalaysia

Graha Kapital Building 5th Floorsuite 506Jl. Kemang Raya No. 4Jakarta Selatan 12730Indonesia

701, Meadows, Sahar Plaza ComplexM.V.Road, Andheri EastMumbai - 400 059India

Phone: +61 (0) 8 933 15355 +61 (0) 8 933 15379Fax: +61 (0) 8 933 15322

Phone: +603 2171 1949 +603 2171 1415 +603 2121 1915Fax: +603 2171 1615

Phone: +62 21 719 8750Fax: +62 21 718 0781



Antonius AjiGeneral [email protected]

Mohan VaidhyanathanGeneral [email protected]

Middle East and Africa - Area VP Christian Krüger

Welltec Oilfield Services (Saudi Arabia) Limited

Welltec Middle East Welltec Oilfield Services (Nigeria) Ltd.

Welltec Angola, Lda.

Shoaibi Building King Abdulaziz St.P.O.Box 1280 Al-Khobar 31952 Kingdom of Saudi Arabia

Trading and delivery address:Plot No. 34, Sector M38Mussafah, Abu DhabiUnited Arab Emirates

Postal address:Welltec Middle EastPO Box 4118, Abu DhabiUnited Arab Emirates

31A Adeniyi Jones AvenueIkeja, LagosFederal Republic of Nigeria

Rua 6 - I.L. BoavistaSonils BaseLuanda - Angola

Phone: +966 3 894 1700 Phone: +9712 5511140/+9712 5511961 Fax: +9712 5511962

Phone: +234 (805) 509 34778



Abiodun AkinsanyaGeneral [email protected]

Brad ErvinGeneral [email protected]

North America - Area VP Gregg Lindstrom

Welltec Canada Inc. Welltec US Inc. Welltec Oilfield Services Mexico S.A.

4860 25th Street S.E.Calgary, AlbertaT2B 3M2Canada

19424 Park Row, Suite 130Houston, Texas 77084USA

Calle 51 A # 36 entre calle 22 y Avenida López Mateos, Colonia Pallas, C.P. 24140Ciudad del Carmen, CampecheMéxico

Phone: +1 403 263 2248Fax: +1 403 263 2258

Phone: +1 281 398 9355Fax: +1 281 398 9365

Phone: +52 938 131 0042 +52 938 381 4733

Gregg LindstromArea VP North [email protected]

Lorne SimmonsGeneral [email protected]

Virgilio León SanchezGeneral [email protected]


South America - Area VP Brian Schwanitz


Welltec do Brasil Ltda. Welltec Venezuela C.A.

65A. 30/4 RoadThang Nhat WardVung Tau CityVietnam

Av. das Americas n° 3333Sala 816, Barra da TijucaCEP: 22631-003Río de Janeiro – RJ – Brasil

Sector La PlantaCalle 17 #221MaturínEstado MonagasVenezuela

Phone: +55 21 2431 0952Fax: +55 21 2431 0952

Phone: +58 291 642 46 44Fax: +58 291 642 46 44


Brian SchwanitzArea VP Brian [email protected]

Angel LuvianoBusiness Delivery [email protected]

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