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Download Title: The ESP Group – Dewatering Gas Well using Submersible
Transcript
Electrical Submersible Pump (ESP) and Electrical Submersible Progressing Cavity Pump – Through Tubing Conveyed (ESPCP TTC) Field Trial Update Peter Oyewole, BP America, Inc. Josh Prather, Baker Hughes, Abstract ESP and ESPCP that were traditionally reserved for high liquid producing oil and gas wells have now been applied more in low liquid volume gas well dewatering. The presentation covers technology advancement and innovative application of Electrical Submersible Centrifugal Pump (ESP) and Electrical Submersible Progressing Cavity Pump - Through Tubing Conveyed (ESPCP-TTC) in San Juan Coal Bed Methane (CBM) field trial. There were two major application modifications to the ESPCP TTC package for the field trials. It includes the development of the capability to deploy PCP in 2 7/8” tubing for ESP systems. The other modification is the capability to perform through tubing conveyed in one installation run, as oppose three installation runs that were available at the beginning of the project. For the ESP field trial, a properly sized desander assembly was also coupled to the bottom of the ESP to keep solids away from the pump. All the field trials have been supported by an artificial lift monitoring and optimization system. Real time remote artificial lift monitoring and optimization system is perhaps, the most significant factor that contributed to successful ESP and ESPCP application. The field trial had demonstrated that gas production can be maximized; downtime can be reduced without failing the downhole equipment. The project also achieved a world record: The first ESPCP-TTC through 2 7/8” tubing was deployed successful in January, 2008. The ESP and ESPCP-TTC is now an alternate artificial lift system for increasing number of deviated, S-shaped, horizontal and multilateral gas wells. The system can now be applied successfully to dewater low liquid rate gas wells. The importance of providing an efficient rod-less artificial lift system for ever increasing complex wellbore geometry in gas well with low liquid production cannot be underestimated. Several gas wells that can not be lifted economically and successfully with rod driven artificial lift system will definitely benefit from recent system application modification.
