1. Problem Wells Break out Session 2006 International Sucker Rod Pumping Workshop Houston, Texas

2. Problem Well Definition? 1.More that 2 failures per “year”. –What is a Failure? 2.Same type of failure - two in a row. 3.No Fluid in the Tank. 4.There is noticeable Leak w/ fluid on the Ground. 5.Well’s Production has decreased. 6.Pumping Unit is not Running. 7.Fluid Level is not at the Pump. 8.System Efficiency is less than 35%, Surface Efficiency is too low?

3. Worst Problems 4 w/ Gas Interference4 w/ Gas Interference 2 w/ Gas Wells Pumping Water2 w/ Gas Wells Pumping Water 2 w/ Oil Wells2 w/ Oil Wells 5 w/ Rod Cut/ Rod Part/ Rod on Tubing Wear/ holes in tubing5 w/ Rod Cut/ Rod Part/ Rod on Tubing Wear/ holes in tubing 2/ Corrosion2/ Corrosion 2 w/ Sand2 w/ Sand Deviated WellsDeviated Wells Blast JointBlast Joint

4. Handle Gas in Pumping Wells? 1.POC with 70% fillage 2.Continuous Pump many days 3.2 hour shut down time 4.Auto-start gas engine 5.Down size plunger and flow liquids up casing Pump 80 BPD flow 130 BPD

5. Handle Gas in Oil Wells? 1.Don’t recognize gas interference 2.Use LOWIS/case to monitor 3.Every day View every well/ control 4.CO2 Flood & Casing Frequently Unloads 5.30-45 minutes off 6.Use back pressure valve

6. Handel Sand 1.Trying Stanley Filter. Good Luck so far. 1.Other experience is filters plug and tear 2.0.003 “ Pump Clearance 3.Pump sand with 0.007-0.011 4.Don’t stop and let sand settle out 5.Rotate pump. 6.Cavins Desander OK 7.Grooved Plunger 8.0.007-0.008 fit 9.Long Plunger/short barrel 10.Grooved Plunger

7. Examples of Problems? 1.Need work over rigs 2.Make-up problems causing failures 3.Use spray metal pull rod 4.Good Chemical Guy Left 5.KD rod for corrosion resistance 6.Use 13 chrome or 3 16 stainless blast joint

8. Identify Problems? 1.Bad Well 3 failures in 1 year/ 2 per year/ 2 per taper/year 2.Use field wide system for monitoring & to ID problem. 3.Need failure meeting every month & frequent well review. 4.Record every failure, look at failed component, decide to do something, set goals, have your own pump shop. 5.Use integrated solution team, ID root cause, use best practice team, inspect failures, team needs rod/ pump/ chemical/ work-over/ company man. 6.Look at Pump in Shop 7.Call meeting if 5 failures in one month

9. Questions ?