11 th Annual Sucker Rod Pumping Workshop Renaissance Hotel Oklahoma City, Oklahoma September 15 – 18, 2015 Breakout Session Summary Failure Rates and Failure Analysis Facilitated by Mark Turland, Tom Cochrane

Sept. 15 – 18, Sucker Rod Pumping Workshop2 What was Discussed? Deep and/or deviated rod pumping Typical failure challenges –Rod Failures; connections & corrosion –Tubing and Pumps Failure Rates 0.7 to 0.9. Several were higher but quick results from focused failure reduction Failure Meetings –Most reviewing the worst of repeat wells with relevant vendors, production, rig supervisors Failure Data (rig, chemical, pump, tubing) Mechanical cause easier to identify. The challenge is in finding solutions

Sept. 15 – 18, Sucker Rod Pumping Workshop3 Where any Conclusions or Recommendations Made? Sucker Rods –Connection failures, and just below the upset; micro pits you have trouble seeing –Option to load C & D rods to 135% in corrosive service –Need better spacing recommendations in design programs; too much heat elongation –Need to be perfect in handling and makeup for deep wells; rig crew training –Need a rod inspection facility close to the field. Wary of extra handling required for inspection –Lay down string with known problems; can you afford to / afford not to

Sept. 15 – 18, Sucker Rod Pumping Workshop4 Where any Conclusions or Recommendations Made? Deviated Wells –Guide > lbf sideload –Little consensus around sideload max; some using dogleg criteria –Wear intervals move up the hole –Drilling directional surveys suspect; do a gyro and get a good survey density

Sept. 15 – 18, Sucker Rod Pumping Workshop5 Where any Conclusions or Recommendations Made? Tubing –Verify rig floor inspected red joints with ultrasonic, camera –Look for external tubing wear for mis-set tubing anchor –Do a good tubing anchor setting calculation. You may need higher tubing grades shallow in deep wells, for the tensile strength –Need aggressive chemical treatment on startup and solid thereafter

Sept. 15 – 18, Sucker Rod Pumping Workshop6 Where any Conclusions or Recommendations Made? Automation –Most have some automation, half have full automation, a few have full time monitoring on SCADA for problems –Some using SCADA data in failure meetings

Sept. 15 – 18, Sucker Rod Pumping Workshop7 Who Attended the Breakout Session? TotalOperatorService Company Consultant

Sept. 15 – 18, Sucker Rod Pumping Workshop8 Summary Should this Breakout Session be repeated? Should this Breakout Session be repeated? –YesYes Should changes be made for the future? –Scribe with laptopScribe with laptop Any other recommendations.

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