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Gas Well Deliquification Workshop

Sheraton Hotel, Denver, Colorado

February 27 – March 2, 2011

FOUND: LOW COST PUMPING SYSTEM

FOR DE-WATERING GAS WELLS

Dave Phillips (Samson Pump LLC)

James Martin (Consultant)

Matt Raglin (SPIRIT Global Energy Solutions, Inc.)

Jeff DaCunha, Ph. D (BREX, Inc.) / Ken Nolen (Consultant)

Norman W. Hein, Jr., P. E. (Oil & Gas Optimization Specialists, Ltd.)

Feb. 27 - Mar. 2, 2011 2011 Gas Well Deliquification Workshop

Denver, Colorado

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Contents

• ―Wanted‖ Story Demands Answer

• New System for Gas Well Deliquification

• Department of Energy Awards Grants to Samson Pump

• Testing and Pilot Well Installations @ RMOTC

• First Phase of Well Tests @ Red Raider #1

• Second Phase of Well Tests @ Red Raider #1

• Conclusions & Recommendations

• Copyright

• Disclaimer

Wanted: low-cost pumping for gas wells **

• Liquid loading is a common cause of production

impairment in gas wells, particularly depleted wells.

• Increasing production from marginal gas wells will

depend on the development of new, low-power, low-cost

technology that will reliably and economically remove

small liquid volumes.

** Paper By Bryan Dotson, Fulbert Del Mundo and Stephan Cadwallader;

BP America Production Co. (E & P Technology, December 2006)

Feb. 27 - Mar. 2, 2011 2011 Gas Well Deliquification Workshop Denver, Colorado

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―Wanted‖ Story Demands Answer


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• In most cases, a very small liquid volume needs

to be lifted in order to deliquify the well bore.

• A minimum of about 25 hp is generally specified,

partially because smaller equipment is not

routinely available.

• Hydraulic Power Distribution: If we had small,

efficient pumps, many US wells could use them.

• Following successful downhole pump trials,

system development will package not only the

pump but also the liquid/power conduits, surface

power supply and sales/service.

• Extend well life by reducing the economic limit:

Lowers capital investment

Decreases installation costs

Reduces operating expense

• Traditional beam pumping (cyclic loading):

Inefficient at low rates

Can require higher lift capacity than the well

actually produces (minimum +/- 25 horsepower)

• Many low liquid volume gas wells cannot justify the

current cost of artificial lift


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New System for Gas Well Deliquification

The Samson ultra high efficiency down-hole pump


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The Samson high efficiency down-hole pump

The Samson ultra high efficiency down-hole pump

• Exponential less leakage/slippage than conventional

• Still produces at 1/2 SPM even with loose fit

• Can also handle solids production (sand and fines)

• Longer run times result from less valve failure

• Reduces required surface horsepower and

counterbalance

• (Testing Results Data to follow)


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Spoolable, Thermoplastic, Hollow Pump Actuator


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• Light-weight reduces

required surface horsepower

• Smooth Liners Improves

Pressure Drop by up to 50%

• Inner Layer for Corrosion

Resistance, Low Permeation

and Higher Temp Strength—

Fortron

• Liner compatible with

Hydrocarbons, Brine, CO2,

H2S—no paraffin adhesion

Internal Layer



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• Cross Braids Provide Axial Strength

• Longitudinal Braids Provide Tensile

Strength to Minimize Stretch

• Aramid Fibers for Fatigue and

Strength (KEVLAR)

• Wall Thickness for Collapse

Resistance

• Small ID maximizes liquid velocity

• Eliminates corrosion, reduces

abrasion

Middle Layer



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• Aramid fibers

(KEVLAR) have a

higher tensile

strength than glass

fibers

• High resistance to

fatigue

• Easily Fished

KEVLAR/EPOXY



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• Couplings Swaged on Both Ends

• Duplex 2205 Stainless Grade or

Carbon Steel

• Any Thread or Connection is

Available

• Installable in the Field or Plant

• Coupling can serve as splice



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• No Workover Rig

needed for installation

or pump change

• Service truck/trailer

will be readily

available for

installation and

servicing

Linear Rod Pumping Unit

• Speed controlled linear motor, at the surface, to

actuate the rod string

• Eliminates fluid-pound without intermittently shutting

the well down – incorporated pump-off controller

• Reversing motor regenerates to charge capacitors on

downstoke

• Small enough to be installed by hand – 2 man crew

• Can operate on solar panel power


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UNICO LRP ID Tag LRP Motor/Gearbox


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Denver, Colorado

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Department of Energy Awarded Two Grants to Samson Pump

• Grants from the U.S. Department of Energy (DOE) were

received to test the patented Samson Pump and

evaluate its benefits to sub-surface fluids production

• Testing proved that the Samson Pump operates with

higher efficiency (less leakage) than a conventional API

Pump – due to its variable length seal between the

barrel & plunger

• Recipient of REPSA (Research Partnership to Secure

Energy for America) ―Energy Award‖ in 2009 Competition

• Now in commercialization stage – seeking

producers/operators to provide field installations


Denver, Colorado

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Testing and Pilot Wells @ RMOTC

• Rocky Mountain Oilfield Testing Center provides test

well for analysis of sucker rod pumps


Denver, Colorado

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Testing and Pilot Well @ RMOTC

• Field installations on open hole shale wells provided a

useful application for stripper wells – 3 sold to DoE


Denver, Colorado

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First Phase of Well Tests @ Red Raider #1

• Testing was done at the Texas Tech University’s Red

Raider #1 test well

Red Raider 1 well site Red Raider 1—plumbing “loop”


Denver, Colorado

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• SPIRIT Global Energy Solutions, Inc. was contracted to

assist with the testing and data analysis

Who We AreThe SPIRIT team is globally recognized as the principal experts in

rod-pumping worldwide.

Leveraging our nucleus of technical expertise to improve rod

pumping processes worldwide is our goal.


Denver, Colorado

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• Comparisons were made on how the patented Samson

Pump worked versus a conventional/API pump

• Pump card for API pump looks like worn pump

• Pump card for the SAMSON Pump shows efficiency

1-3/4” API @ 1 SPM 1-3/4” Samson @ 1 SPM


Denver, Colorado

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Samson

API

Dynamometer Card Overlay

• 1-3/4‖ bore pumps

• 88‖ stroke length

• 1 SPM

• 0.009‖ overall clearance/tolerance/fit


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Item Units API SAMSON Diff

Speed SPM 1 1 0

Fluid Level FAP 591 591 0

Pump Size Inch 1.75 1.75 0

Stroke Inch 88 88 0

Pump Stroke Inch 88 87 1

Net Stroke Inch 0 62 62

Production BPD 0 18 18

Clearance Inch .009 .009 0

Leakage BPD 31 12 19

DH Fluid Load Lbs 3205 3366 161

API Pump vs. Samson Pump -- Dynamometer Report


Denver, Colorado

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Note: Integral represents variable seal length


Denver, Colorado

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1-3/4" Pump Production Comparison 0.009‖ fit, 86‖ stroke , 1 SPM

SPM API SAM Ratio

0.5 (22.14)* 3.03 ∞

1 (6.79)* 18.38 ∞

2 23.91 49.08 105%

3 54.62 79.79 46%

4 85.32 110.49 30%

5 116.02 141.19 22%

6 146.72 171.89 17%

7 177.42 202.59 14%

8 208.13 233.30 12%

9 238.83 264.00 11%

10 269.53 294.70 9%* Indicates “Negative Rate” – pump cannot leak more than displacement


Denver, Colorado

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2nd Phase of Well Tests @ Red Raider #1

• This phase compared the Samson Pump with twice the fit

of the conventional/API pump in 1-1/4‖ bore, 88‖, 1 SPM

• API=0.006, SAM=0.012

• Fit/Clearance/Tolerance times Cross Sectional Area of

Plunger/Barrel Interface makes the ―Space‖ exponential

1-1/4” API @ 1 SMP 1-1/4” Samson @ 1 SMP

Samson

API


Denver, Colorado

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Note: Integral represents variable seal length


Denver, Colorado

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3 SPM: (avg :1.47lbs/min>.176gal/min>.00419bbl/min>6.03bbl/day)

Patriot Pump_0.75” Bore_12’Plunger_0.003” Fit

1 SPM: (avg: 0.37lbs/min>.044gal/min>.00105bbl/min>1.52bbl/day)

2 SPM: (avg: 0.92lbs/min>0.11gal/min>.00262bbl/min>3.77bbl/day)

Samson Pump_0.75” Bore_8’Plunger_0.003” Fit

1 SPM: (avg: .44lbs/min>0.053bal/min>.00127bbl/min>1.83bbl/day)



1 SPM 20%

2 SPM 28%

3 SPM 18%

Samson Pump averaged 22% more efficient


Denver, Colorado

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Conclusions & Recommendations

• Throughout the oil and gas industry the challenge for

energy efficient, low volume production solutions

exists

• The results of combining ultra high efficiency pumps,

hollow pump actuator/fiberglass sucker rods, and low

volume energy saving pumping units will undoubtedly

change the way low volume stripper wells are viewed

from an economic standpoint

• Dewatering of gas wells utilizing rod pumping

artificial lift is a prime application for these combined

technologies.


Denver, Colorado

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Copyright

Rights to this presentation are owned by the company(ies) and/or author(s) listed on the title page. By submitting this presentation to the Gas Well Deliquification Workshop, they grant to the Workshop, the Artificial Lift Research and Development Council (ALRDC), and the Southwestern Petroleum Short Course (SWPSC), rights to:

– Display the presentation at the Workshop.

– Place it on the www.alrdc.com web site, with access to the site to be as directed by the Workshop Steering Committee.

– Place it on a CD for distribution and/or sale as directed by the Workshop Steering Committee.

Other use of this presentation is prohibited without the expressed written permission of the author(s). The owner company(ies) and/or author(s) may publish this material in other journals or magazines if they refer to the Gas Well Deliquification Workshop where it was first presented.


Denver, Colorado

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Disclaimer

The following disclaimer shall be included as the last page of a Technical Presentation or Continuing Education Course. A similar disclaimer is included on the front page of the Gas Well Deliquification Web Site.

The Artificial Lift Research and Development Council and its officers and trustees, and the Gas Well Deliquification Workshop Steering Committee members, and their supporting organizations and companies (here-in-after referred to as the Sponsoring Organizations), and the author(s) of this Technical Presentation or Continuing Education Training Course and their company(ies), provide this presentation and/or training material at the Gas Well Deliquification Workshop "as is" without any warranty of any kind, express or implied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded under any relevant law) and these members and their companies will not be liable for unlawful actions and any losses or damage that may result from use of any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained.

The views, opinions, and conclusions expressed in these presentations and/or training materials are those of the author and not necessarily those of the Sponsoring Organizations. The author is solely responsible for the content of the materials.

The Sponsoring Organizations cannot and do not warrant the accuracy of these documents beyond the source documents, although we do make every attempt to work from authoritative sources. The Sponsoring Organizations provide these presentations and/or training materials as a service. The Sponsoring Organizations make no representations or warranties, express or implied, with respect to the presentations and/or training materials, or any part thereof, including any warrantees of title, non-infringement of copyright or patent rights of others, merchantability, or fitness or suitability for any purpose.

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