wireline operation

Introduction toWIRELINE OPERATIONS

Operations in BITRev. 00 - Print date 20.06.09

HEIDRUN

3

IntroductionFor a long period, StatoilHydro has worked in order to prevent dropped objects on our installations, and much work has been done to contribute to our philosophy:“Our goal is zero harm. All accidents can be prevented.”

The workplace changes all the time for the personnel working with Well Intervention. The personnel must also be involved in several management systems on the different installations. Personnel on these installations must work together with the personnel working with Well Intervention. This requires co-ordination and a mutual understanding of what is important to have in mind under this type of operations.

If the planned activities are carried out at a high quality, we believe that we will achieve a good HSE level at the execution of the operations. This will prevent incidents, which in turn will contribute to high effectiveness in our operations.

This handbook is meant to be a tool to ensure a correct performance of the operations, in addition to help you check equipment which we have put extra focus on. In this manner, you can help us contribute to a safe operation.

A hand book such as this can be an effective tool to identify and catch up conditions which routine work can overlook. However, this hand book is only a supplementary tool. Primary controls including pre-job meetings, safe job analysis, procedures, direct supervision, training and competence shall be rigorously applied during the operation.

We believe this hand book can contribute to be a barrier, so that you can, after having taken part in the operations, return back home again in the same condition as before you started the operation. We also want proposals on improvements, in order to revise the book.

Best regards

Erling Meyer Tore Flatekvål Vice President D&W Manager

Kjell Tore Nesvik Ivar Kjøsnes Well Superintendent Drilling Superintendent

4

1. WhatWhat could go wrong?Risk assessment/AT/SJA/TBTAre requirements from Just rules100% fulfilled?

2. HowWho are leading the job?How am I going to do this job?Do I know the procedure?

3. WhichWhich safety measures areimplemented?Is the risk minimized?

4. WhoWho do I need to inform?Assure that all involved parties knowtheir role and tasks, understand theprocedure and safety measures.

5. CommunicationListen to your colleagues andcommunicate openly.Speak plainly, so the messagereaches the right persons.

Personal checkpoints

Take 5 seconds, stop and think!Take 5 seconds, stop and think!

5

How can we avoidaccidents?

Ourexpectations

Risk assessmentControl of work

Lifting operationsWork at heightEnergy isolation

Confined space entryExcavation

Mobile equipment

Rules for everyone,applied at all times

Rules for allwork activities

Rules forspecificworkactivities

How can we avoidaccidents?

Ourexpectations

Risk assessmentControl of work

Lifting operationsWork at heightEnergy isolation

Confined space entryExcavation

Mobile equipment

Rules for everyone,applied at all times

Rules for allwork activities

Rules forspecificworkactivities

6

General HSE information:• Pre-job meetings shall be held prior to well operations and the well operation program shall here be presented to all involved personnel.

• Secure and cover WL or workover hatches to prevent dropped objects.

• WL contingency procedures shall be available in WL winch during the entire operation.

• Control of HMV and TRSCSSV shall be on local control panel during WL work.

• Local control panel shall be placed convenient with respect to escape routes. (Normally on ISF deck next to WL winch)

• Clarify escape routes before operation starts. Make sure there are two separate escape routes at each working area. Always keep yellow escape routes free from obstructions.

• Notify CCR prior to initial leak testing against XT-valves.

• Establish radio communication between all involved personnel. - Only use radios with headset and carrying pouches - Radio channel #7 - Emergency channel #13

• Barriers - Area around XT on wellhead -Workareaonskiddeck/BIT/Pipedeck/Drillfloor - Use barrier chains/bands marked with “Well Operation – Radio channel #7 / Phone: 3275” - Do not break/enter under a barrier without contacting AWS for approval

• Avoid simultaneous operations in different levels. - Personnel on upper deck are responsible for barriers on decks below.

• Secure tools and equipment to avoid dropped objects.

• Report incidents/accidents to well supervisor.

General safety precautions:Fundamental safety requirements for lifting operations

- The load and any load carrier shall be properly secured and prepared before the lifting operation starts.

- Relevant areas shall be barriered off before the lifting operation commences.

- Incaseofsignificantmovementontheinstallation,loadsshallbesecured against unintentional displacement or overturning.

- Loads shall not be lifted over personell and personnel shall not walk under suspended loads.

- All personnel who are involved in the lifting operation shall ensure that they have an unrestricted escape route during the whole operation.

- If the assumptions which the planning and risk assessments where based upon changes, stop the operation and consider a new plan. The lifting operation shall cease immediately if safety is jeopardized.

In this book:WL operation in BITAll equipment is installed in and directly under BIT.This operation was performed in November 2008.

Remember! Wireline operations at Heidrun vary a great deal from time to time. Weather conditions, logistics, equipment issues and simultaneous operations will have an impact on the way equipment is rigged up. The rig up shown in these manuals where the best alternative at the time they were performed, and will not always be the best solution.

Electronic updatePersonnel using these manuals are requested to assist in the improvement and further development of the document. If you have suggestions for new checkpoints,picturesortext,pleaseregistertheseintheelectronicupdatefile “Operation manuals/WL/Operations in BIT” found in the Document workspace “Wireline billedbøker - endringsforslag” at the team site “Rig Supervision Heidrun TLP”.

7

Overview BIT and ISF

WINCHES

PALFINGER

UPPER TROLLEY

HPU (High Pressure Unit)

LOWER TROLLEY

ISF (Integrated Skidding Frame)

BIT (Well Intervention Tower)

88

9

General instructions When performing the operations described in this operation manual there are some safety issues that are very common.

Instead of reminding the reader of these safety issues with a written instruction every time it occurs, there are inserted two different “reminder symbols”.

Look out for these symbols:

Color coding: Inspect lifting gear and check that it is approved for use.

Shackles: Check that shackles are secured with split pins.

10

RIGGING UPin BIT

Check that permit to work (AT) is activated.

Perform risk analysis prior to starting work (SJA, pre-job meetings,etc.).

Check that all barriers are in place, and area is secured.

Check that all operational personnel has radio-contact. Install new batteries in radio.

Prepare for removal of wellhead hatch.

l Check general condition of chains and hooks before lifting.

l Before opening hatch: check area around for loose objects.

Rigging up wireline hatch

A

11

Color Coding Shackles

A

12

Installing wireline hatch on hatchway.l Check general condition of chain and hooks before lifting.


A


A

13


Install hydraulic hoses for wireline hatch.

14

Installing control cables through wireline hatch.l Secure cables with ropes.A


A

15


Do not lower riser before: l Handrails are inspected.

l You have an authorized work permit.l Wellhead operator is informed.l Riser has two barriers.

16

l Check if shackles have the right dimension for this job.l Verify that lifting cap is tight.

Always secure riser with additional lifting wire.

Connecting risers and BOP to XT

A

B

B


A

17

Open hatchcover on ISF deck and prepare for lowering riser.l Checkifhandrailsarefirm.l Check if cable clamps are tight.l Before opening hatch: check area around for loose objects..

A


Shackles

A

B

B

18

Riser is lowered down and winch operator has a good overview on lifting operation. Take proper precautions during operations:

l Safe positioning of crew.l Beware of crushing hazard: Always keep your back free.l Chech if riser and pumpingsub moves securely through hatch.l Use guide ropes if necessary.l Position personell on each level during lifting operation.


19


When pumping sub is lowered through hatch; close hatchcovers to help stabilize it.

Ensure radio contact during lifting operations.

20

Pumping sub is lowered through lower hatch.

Always use guide ropes.

Before opening hatch: check area around for loose objects.


21

Riser is lowered carefully down towards wellhead. Winch operator has a good overview of lifting operation and maintains radio contact with operator.


22


A

l Inspect condition of O-ring before landing riser.

Beware of sharp edges on O-ring.

Flashlight recommended.

A

23

XT top cap is removed and ready for connection.

l Wipe and grease seal-bowl.


A

A

24

Riser assembly is guided carefully down on XT.

Beware of crushing hazard: Watch your fingers.


25


A

l Collarisfastenedandliftingoperationfinished.A

26


l Install hose connection on pumping sub.

l Prepare hose safety wire.

A

B

AB

27


Hose is connected to the pumping sub. Make sure it is tight.

l Secure top cap on scaffolding.

A

A

28

Riser is connected.


29

l Install half-moon covers around riser.l Secure riser with chains.

A


B

A

B

30

l Make sure shackle has the right dimension for this job.

l Unscrew BOP from trolley.

Remember general lifting precautions.

A


A

B

B

Shackles

31

l Inspect condition of O-ring before landing BOP.

Beware of sharp edges on O-ring. Flashlight recommended.Guide BOP carefully down on to riser.Fasten collar.Unscrew BOP lifting cap.


A

A

32

Connect control lines for BOP.


33


Function test BOP.l Control lines for BOP.

A

A

34

Manifold trolley on wellhead.

Check that valves are open/closed as planned before pumping.l Check that hose connections are secured with wire.A


A

35

General inspection of rig up on wellhead.Walk the lines.

l All valves on pumplines must be marked.l An updated copy of line schematics must always be available in WL unit.l All pumplines must be secured with wire.


36

Riser is lifted up from mousehole.l Remove kick-list and place safety cover on mousehole. Secure work-deck before removing kick-list.l Remove riser protector.l Check that threads are clean and inspect O-ring.

l Beware of sharp edges on O-ring. l Flashlight recommended.

A

Connecting middle riser

B

A

B

C

C


37

Riser is lifted up with BIT winch and guided down towards BOP.

Maintain radio contact with personnel on lower deck.

Connecting middle riser/guiding

38

Riser is lifted with winch and guided down towards BOP.

BOP working platform might be damaged during crane handling; perform a general inspection on platform before entering.

Connecting middle riser to BOP

39

l Ensurethatriserconnectionisfirm.

l Beware of crushing hazard: Watch your fingers.

l Maintain radio contact.

Connecting middle riser to BOP

A

A

40

Removing lifting cap

Note position of half-moon covers.

41

Placement of Quick Test Sub (QTS)

Removing QTS protector.l Verify that lifting cap is tight before lifting.A

A


42

Perform general inspection of shackle and tool connections before lifting.

Secure skid deck.

Move out of lifting area as quick as possible.

Consider use of guide ropes in heavy winds.

Lifting tool from skid-deck to BIT


43

Guiding tool in to riser.

Guiding tool into the riser

44

l Tool is mounted in hang off plate.

l Remove any tape remnants on BHA.


Position tool in hang off plate

A

B

A

B

45

l Remember safety chain on hang off plate.

Tool in hang off plate

A

A

46

Rigging up lower wireline sheave

Rigging up lower sheave assembly.l Check that bolts are tight.l Checkconditionoffiberslingandfasteningpoint.l Note position of cover (consider use of half-moon cover).

A

B

B

A

C

C


47

Cable is mounted in sheave.l Check that sheave is secured with split-pins.A

Mounting upper wireline sheave

A


48

Hydraulic hose is mounted to the stuffingbox.l Check that hydraulic hose is secured with wire and strips.A

Stuffingbox

A

49

Ensure that sheave wheel is fastened between shackles and chains of lubricator to ensure that sheave is hanging straight.

General inspection of shackles and lifting gear.

Fastening sheave wheel and lubricator in BIT main hook


50

Keep the wireline tight during lifting to ensure it doesn´t twist.

There must be personell on ISF level to ensure that lubricator assembly moves securely through hatch.

Lifting sheave wheel and lubricator

51

Connecting cable head to toolstring

A

l The tool placed in hang-off plate is now connected with cable head.A

52


There should be personell with wireline winch to watch wireline and sheaves, in addition to be present at BIT work deck.

Pulling up toolstring weight with winch

53

Wireline is kept tight by hand until tool is lowered down.

Tighten wireline

54

Guide lubricator carefully down onto QTS.


l Inspect condition of O-ring before landing riser.

Beware of sharp edges on O-ring.

Flashlight recommended.

Connecting lubricator to QTS

A

A

55

l Installing the bleed-off manifold. Consider use of thread tape.

Connecting lubricator to QTS

A

A

56

Lower tool string and calibrate (zero depth) counter system.

Pull up Toolcatcher (TC).

Rig up is finished and ready for leak testing.

An updated copy of line schematic must always be available in WL unit during operation.

Zero depth counter on swab

57

RIGGING DOWNin BIT

58

l Perform visual inspection of lifting cap before lifting.Displace riser to Nitrogen and verify pressure before rigging down.Unscrew collar above QTS.

A

Rigging down

A


59

BIT tugger is used to elevate riser/lubricator assembly.

Take proper precautions during lifting operations:l Safe positioning of crew.l Beware of crushing hazard: Always keep your back free.

Rigging down

60

Tool is elevated and mounted in hang off plate.l Remember safety chain on hang off plate.


A

Rigging down

A

61

Transfer weight of toolstring from winch to hang off plate.l Rope socket is disconnected from toolstring.A

Rigging down

A

62

l Lubricator assembly is placed in mousehole.

Personnel must be present on level beneath to inspect that assembly is lowered securely down.

Rigging down

A

A

63

Removing tool.

Lifting eye is connected to toolstring.

Rigging down

Shackles

64

Removing tool.

l Use a suitable strap between lifting eye and tugger hook. Inspect condition of strap.

Tool is now lifted out and dismanteled.

Rigging down

A

A

65

Rigging down

Rigging down QTS.

Install lifting cap on QTS.

Shackles

66

Ensure that hydraulic pressure is bled off and remove control lines for BOP.

Always remember to install dust caps on hydraulic connections. Dirt in these connections may have serious consequenses.

Rigging down BOP

67

Rigging down lubricator

l Riser collar is unscrewed.


A

A

68

Lifting riser.

Inspect riser during lifting to ensure secure movement.


69


l Install protector on riser and lower it down into the mousehole.

Riser placement.

Make sure there is a person present on level below.

A

A

70

Lifting cap is now installed on BOP.l Check that lifting cap is tight.

Fasten working platforms and prepare BOP for lifting operation.

Inspect BOP for loose items, tools etc.

A

Rigging down BOP

A

Shackles

71

l Lower collar is unscrewed.

Rigging down BOP

A

A

72

Preparations for lifting BOP.

l Check that cable clamps are tight.

Handrails are installed around hatchway and hatch covers are opened.

Check area around hatches for any loose objects before opening hatch covers.

Rigging down BOP

A

A

73

Inspect BOP during lifting to ensure that it moves securely.

l Move out of lifting area as quick as possible.

l Consider use of guide ropes.

Rigging down BOP

74

Elevate BOP and close hatch covers.

Rigging down BOP

75

Drive trolley underneath BOP and lower it carefully down.l Use straps to secure BOP during transport on trolley.

Rigging down BOP

A

A

76

Rigging down riser

Install lifting cap on riser. Inspect condition on straps.l Check that lifting cap is tight.l Always have two barriers when performing lifting operations above open well.

Remember to contact wellhead operator before operation.

A

B

A

B

Shackles

77

Lines must be flushed and verified to be without pressure before “breaking” the connections.

Halliburton personnel rigging down Chiksan pipeline.

Wellhead operator must be present.

Rigging down Chiksan pipeline

78

l Opening collar.

Rigging down riser

A

A

79

Secure area.

Check that riser moves securely during lifting. Always use guide ropes.

There must be personnel present on all levels to inspect the lifting operation.

Wellhead operator must be present.

Rigging down riser

80

Open wireline hatch covers and check that riser moves securely.

Always use guide ropes.

Rigging down riser

81

Close hatch cover after lifting.

There shall be no work on XT until hatch covers are closed.

Rigging down riser

82

Check that riser moves securely through bushing.

Rigging down riser

83

Check that riser and pumping sub moves securely through hatch.

Rigging down riser

84

Secure riser with slips and dog collar.

Rigging down riser

85

When riser is secured, close hatches.

Safe positioning of crew.

Rigging down riser

86

Connect top cap on XT.

Rigging down riser

87

Rigging down riser

Preperations for pumping of MEG and leak testing.

88

AB

BR

EV

IAT

ION

SAWS Aker Well ServiceBIT Brønnintervensjonstårn (Well intervention tower) BHA Bottom Hole Assembly BHP Bottom Hole Pressure BHT Bottom Hole Temperature BOP Blow-Out Preventer CCR Central Control Room CSG Casing CT Coiled TubingDCDA Drilling Control and Data Acquisition FH Fluted Hanger FWHP Flowing Wellhead Pressure HC Hydrocarbons HMV Hydraulic Master Valve HP High pressure ID Internal Diameter ISF Integrated skidding frame LD Lay Down LPM Liters per minute LTV Low-torque valve MD Measured depth MEG Mono Ethylene Glycol MMV Manual Master Valve MSL Mean Sea Level OD Outer Diameter OOH Out of hole PBR Polish Bore Receptacle PBTD Plug Back Total Depth PLT Production Logging Tool POOH Pull out of hole RIH Run in hole PWV Production Wing Valve RKB Rotary Kelly BushingRU Rig Up SG Specific gravity SIWHP Shut-in wellhead pressure SJA Safe Job Analysis SV Swab valve SWV Service Wing Valve TBG Tubing TD Total Depth TLP Tension Leg Platform TRSCSSV Tubing retrievable surface controlled subsurface safety valveWHP Wellhead pressureWH WellheadWL WirelineXT Christmas tree/Xmas treeQTS Quick Test Sub

Rev. 00

Et produkt fra Firstline ASwww.firstline.no

Firstline ASGismerøyveien 227

PO box 5394504 Mandal

StatoilHydro Kontor Strandvegen 4 7500 Stjørdal

HE

IDR

UN

wireline operation

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