Design of Sucker Rod Systems â€“ - ALRDC

5th Annual Sucker Rod Pumping Workshop

Wyndham Hotel, Dallas, TexasSeptember 15 – 18, 2009

Design of Sucker Rod Systems –Plan for Conversion from Flowing to Pumping

Robert Harris – H & H Well Services, LLCJames Harris – H & H Well Services, LLC

281-996-1077

H & H WELL SERVICES, LLC Computerized Diagnostic Testing Services

2

Goal of Any Production Method

Reduce the Producing Bottom Hole Pressure to

the minimum pressure, within cost constraints,

to allow the reservoir pressure to push the

fluids and gas to the wellbore.

Sept. 15 - 18, 2009 2009 Sucker Rod Pumping Workshop

3

How Do You Select the Best Artificial Lift Method?

Expected Liquid and Gas Production rates Well Completion Field Experience Field Personnel Technology Level

Best “Average” Production & “Lowest Life-Cycle Cost”Sept. 15 - 18, 2009 2009 Sucker Rod Pumping Workshop

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Deciding on Artificial Lift Production Method

• Data you need to reviewHistoric production data – BOPD, BWPD, Mcf/D Production reports Decline curves & IPR/PI curves Swab reports Determine how the well was produced prior to

moving to artificial lift Talk to the Gaugers/Pumpers Production history of other wells in same

formation


5

Deciding on Artificial Lift Production Method

• Data you need to review (cont.)The wellbore drawing/drilling report Casing size/liners Deviation Study Packers Perforations depth PBTD/Fill depth How Much Rat Hole – RHIYF

Review the prime mover power sources – , casinghead, field gas or electricity


6

Rod Pump Application

Graph Illustrating the Window of Rod Pump Application

Graph Assumes:• Pumping Unit has the torque and beam to pull the

load• Tubing size is adequate for rod string required• No gas interference

Bbl

s/D

ay


7

Different Rod Pumping Units – Same Task

Go Up & Down and Lift Fluid


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Considerations in Rod Pump System Design

Target Production Casing Size Perforations depth “Vertical” or Deviated or Horizontal PBTD/Fill depth - RHIYF Sand Problems – Frac or Formation Sand Expected Producing Fluid Level Gas Fluid Ratio Pump Intake Location Prime Mover Energy Source


Design Dependencies

9

Wellbore

Pump

Rat HoleRod String

Pumping Unit Target

ProductionBFPDMcf/D


1010

Rod Pump System Design Process

Wellbore

• Casing Size/Tubing Size• Depths and Deviation Study• Packers• Completion: Frac/ Open Hole/ Liners

Production

• Historic Flowing Production – this and other wells• Swab Runs• Intermitted Production Reports• Your Best Guess as to Future Production & Decline

Predictives

• Qrod®• LoadCalC®• RodStar®• SROD®


11

Rod Pump System Design Process

Pump Size & Type

• Target Production > Pump Size, Stroke Length, & SPM• Pump Fit and Plunger Type• Pump Intake Above or Below the Perforations• Pump Type – Straight API, TSHVR, H-F VSP®• Gas Separator

Rod String Design

• Pumping Unit PPRL and Torque • Straight or Taper• Grade D or High Strength• Sinker Bars – “Always Keep the Rod String in Tension!”• Rod Guides

Pumping Unit

• Stroke Length• Predicted Peak Polished Rod Loads• Predicted Torque requirements• Strokes per Minute


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Example 1 WellboreFlowing Oil WellHorizontal well with `8000’ lateralKickoff 10 degrees per 100’400 BOPD, 50 BWPD, 600 Mcf/D avg

Directional Well w/ KOP @ 8,080 ft. Built to 65 deg @ 10-11 deg/100 ft & hold to casing pt @ 8,300 ft. Build @ 16 deg per 100 ft to 93 deg.

Packer Hanger @ 8249’

Kick-Off @ 8080’


Example 1 Flowing Production

2008 Sucker Rod Pumping Workshop 13

BFPDMcf/D

Bar

rels

/Hou

r

14

8000

8050

8100

8150

8200

8250

8300

88.3 91.7 93.4 96.5 100.9 107.7 115.5 126.0 138.0 150.8

Feet

Distance from Vertical Bore

TVD

MD

EOT @ ~8219’

Hanger Packer @ 8249’

EOT at ~8,219' or packer -30'

SN at ~8,181'

TAC at ~8,053'

KOP @ ~8080'

TAC~8053' SN @ ~8180’

Example 1 Deviation


Sept. 9 - 12, 2008 2008 Sucker Rod Pumping Workshop 15

Example 1 - Predictive Target Production 400 BFPD500 Mcf/D avg

SolutionTAC @ ~8053’SN @ ~8180’SN @ ~50 degreesEOT @ ~8219’

M912D-365-168 @ 10 SPMDownhole gas separator1-3/4” Insert PumpGas tolerant Pump86 High Strength SR StringMolded guides thru TAC

2008 Sucker Rod Pumping Workshop 16

Example 2 - Wellbore

Perfs 10,532–10,554

PB/Fill 11,400


Example 2 – Historic Production

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0

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40

60

80

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120

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0

500

1000

1500

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2500

3000

3500

4000

4500

50005/

8/20

06

6/8/

2006

7/8/

2006

8/8/

2006

9/8/

2006

10/8

/200

6

11/8

/200

6

12/8

/200

6

1/8/

2007

2/8/

2007

3/8/

2007

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2007

5/8/

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7/8/

2007

8/8/

2007

9/8/

2007

10/8

/200

7

11/8

/200

7

12/8

/200

7

1/8/

2008

2/8/

2008

3/8/

2008

4/8/

2008

5/8/

2008

6/8/

2008

7/8/

2008

Gas

Oil

BFPD

Bbl

s/D

ay

Mcf

/D


Example 2 - Predictive

Sept. 9 - 12, 2008 2008 Sucker Rod Pumping Workshop 18

Target Production 100 BFPD500 Mcf/D avg

SolutionTAC @ ~10,400’SN @ ~10,654’ [Perfs + 100’]EOT @ ~10,722’’

M320D-305-100 @ 8 SPM1-1/4” Insert PumpStandard API Pump76 High Strength SR StringMolded guides thru TAC

1919

Schedules – Today’s Reality

Tubing

• If You Do Not Have Stock; Two to Three Days

Sucker rods

• Two To Three Days Plain, Molded Rods One to Two Weeks

Pumping Unit

• One to Six Weeks


2020

Schedules – Today’s Reality

Pumps• Two To Four Days For Standard

Pumps

Electrical• Electric Power Extension - One week

to Multiple Years

Wellhead

• Stuffing Box, BOP, Production Tee, etc. – OTS – One to Five days

• Tubing Adapter – Days to Weeks


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Conclusions

• Every well is different• Understand the production and productivity

– What did it make – How did it make it

• Treat every well as if it is producing gas• Rat Hole Is Your Friend• Generally, Rod Pump will take the well from

flowing to depletion• Be Aware of today’s Schedules for supplies


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QUESTIONS?


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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 Sucker Rod Pumping 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 uses of this presentation are prohibited without the expressed written permission of the company(ies) and/or author(s) who own it and the Workshop Steering Committee.


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DisclaimerThe 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 Sucker Rod Pumping Web Site.The Artificial Lift Research and Development Council and its officers and trustees, and the Sucker Rod Pumping 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 Sucker Rod Pumping 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.


Design of Sucker Rod Systems â€“ - ALRDC

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