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Slim hole Production Forrest Collier and Bill Hearn

Slim-hole production offers a less expensive and extended drilling program, with conventional tubing options limited. Explore artificial lift methods and their effects on production and cost.

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Slim hole Production Forrest Collier and Bill Hearn

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  1. Slim hole ProductionForrest Collier and Bill Hearn

  2. Slim-hole Less Expensive to drill and complete Extends drilling program due to less cost Conventional More Reserves Pro’s

  3. Slim-hole Production tubing options limited to either 2 1/16” IJ or 1 ½” or coil tubing Limited Artificial Lift Options. Conventional Cost to Drill Completion cost Con’s

  4. Artificial Lift Methods for Slim-Hole • Compression • Lower’s Critical Rate • Increases Production (usually) • Reduces Hydrate tendency • Increase’s other forms of lift options May not help unless post compression rate is greater than critical.

  5. AL Methods Continued • Plungers • Continuous flow plungers popular in slim hole but require velocity • Casing Plunger experience is limited at this time. • Conventional must be operated similar to Packer completions and must have significant GLR to produce (1000 scf/bbl/1000ft)

  6. AL Methods Continued • Cap Strings w/ Surfactant • Plugging has been an issue • Can be used in conjunction with bottom hole pressure equipment to measure Flowing bottom hole pressure. • Has not been automated much but it is considered to be an option. • Velocity Strings • Considered the easy option as there is relatively little operator effort needed if above critical. • Corrosion can be a concern. • Seamless is a good option for future plunger lift.

  7. AL Methods Continued • Rod Pump • Pump up 2 1/16” tubing with small rod string up to 30 bpd. • 1” Rod Pumps (actuate the tubing string) produce up the tubing string. • Limited experience but could be a good way to go check into work done by EOG.

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