4 th Annual Sucker Rod Pumping Workshop Hilton North Hotel, Houston, Texas September 9 12, 2008 Design of Sucker Rod Systems Plan for Conversion from Flowing to Pumping Robert Harris H & H Well Services, LLC James Harris H & H Well Services, LLC 281-996-1077 H & H WELL SERVICES, LLC Computerized Diagnostic Testing Services
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. 2008 Sucker Rod Pumping Workshop 2
How Do You Select the Best Artificial Lift Method? Plunger-Lift Progressive Cavity Pumps Rod Pump Foaming Systems Electric Submersible Pumps Jet Pumps Gas-Lift Expected Liquid and Gas Production rates Well Completion Experience Best Average Production & Lowest Life-Cycle Cost 2008 Sucker Rod Pumping Workshop 3
Deciding on Artificial Lift Production Method Data you need to review Historic 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 2008 Sucker Rod Pumping Workshop 4
Deciding on Artificial Lift Production Method Data you need to review (cont.) The wellbore drawing/drilling report Casing size Deviation Study Packers Perforations depth PBTD/Fill depth How Much Rat Hole Review the prime mover power sources field gas or electricity 2008 Sucker Rod Pumping Workshop 5
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 Bbls/Day Graph Illustrating the Window of Rod Pump Application 2008 Sucker Rod Pumping Workshop 6
Different Rod Pumping Units Same Task Go Up & Down and Lift Fluid 2008 Sucker Rod Pumping Workshop 7
Considerations in Rod Pump System Design Target Production Casing Size Perforations depth Vertical or Deviated or Horizontal PBTD/Fill depth Sand Problems Frac sand or Formation Sand Expected Producing Fluid Level Gas Fluid Ratio Pump Intake Location Prime Mover Energy Source 2008 Sucker Rod Pumping Workshop 8
Design Dependencies Target Production BFPD Mcf/D 2008 Sucker Rod Pumping Workshop 9
Rod Pump System Design Process 2008 Sucker Rod Pumping Workshop 10
Rod Pump System Design Process 2008 Sucker Rod Pumping Workshop 11
Example 1 Wellbore Flowing Oil Well Horizontal well with `8000 lateral Kickoff 10 degrees per 100 400 BOPD, 50 BWPD, 600 Mcf/D avg Kick-Off @ 8080 Packer Hanger @ 8249 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. 2008 Sucker Rod Pumping Workshop 12
Example 1 Flowing Production BFPD Mcf/D Barrels/Hour 2008 Sucker Rod Pumping Workshop 13
Example 1 Deviation 2008 Sucker Rod Pumping Workshop 14
Example 1 - Predictive Target Production 400 BFPD 500 Mcf/D avg Solution TAC @ ~8053 SN @ ~8180 SN @ ~50 degrees EOT @ ~8219 M912D-365-168 @ 10 SPM Downhole gas separator 1-3/4 Insert Pump Gas tolerant Pump 86 High Strength SR String Molded guides thru TAC 2008 Sucker Rod Pumping Workshop 15
Example 2 - Wellbore Perfs 10,532 10,554 PB/Fill 11,400 2008 Sucker Rod Pumping Workshop 16
Example 2 Historic Production 2008 Sucker Rod Pumping Workshop 17
Example 2 - Predictive Target Production 100 BFPD 500 Mcf/D avg Solution TAC @ ~10,400 SN @ ~10,654 [Perfs + 100 ] EOT @ ~10,722 M320D-305-100 @ 8 SPM 1-1/4 Insert Pump Standard API Pump 76 High Strength SR String Molded guides thru TAC 2008 Sucker Rod Pumping Workshop 18
Schedules Today s Reality 2008 Sucker Rod Pumping Workshop 19
Schedules Today s Reality 2008 Sucker Rod Pumping Workshop 20
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 2008 Sucker Rod Pumping Workshop 21
QUESTIONS? 2008 Sucker Rod Pumping Workshop 22
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