Optimization and Advanced Technical Solutions Mean More BarrelsDownload PDF
Improve the run life of ESP systems to increase BO production
The Bakken Formation, North Dakota
Early in 2015, Summit ESP® – A Halliburton Service began working with a customer who operates in the tough North Dakota Bakken formation, where challenges such as gas locking, high downhole temperatures, corrosion, and abrasion meant electric submersible pump (ESP) systems were lasting only few months. After performing a fieldwide optimization study, Summit ESP applied several advanced technologies that increased run life and increased production by 20,000 barrels of oil (BO) per well.
Unconventional wells in the North Dakota Bakken formation are challenging for ESPs. The wells are fracked, and tend to bring in sand when produced. Temperatures can reach 260°F (127°C), and the wells are produced at low pressures (200 psi) with levels of 1,000 MCF of gas, resulting in GF ratios larger than 80 percent at the pump intake. The reservoirs have high levels of CO2 and water gravity above 1.2 with high level of chlorides, making the conditions downhole very corrosive.
Summit ESP began by performing a fieldwide optimization study to determine where to apply advanced technologies. Initial results were so impressive that the customer signed a contract with Summit in mid-2016. Continuing to work with the customer, the Summit ESP Well Surveillance team provided an ongoing, holistic approach to well surveillance, backed with a 24/7 monitoring service to further improve run life, reduce downtime, and increase production.
Barrels of Oil (BO) Increase for Each Well
USD Increase in Revenue
By the end of 2017, Summit ESP had doubled run life and increased production by 20,000 BO per well for a total fieldwide increase in revenue of USD 24 million (at USD 60/BO).
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