AccessESP Rigless System Well with Second Electric Submersible Pump Swap in Alaska


HOUSTON, January 4, 2017—AccessESP has completed the second rigless electric submersible pump swap on an Alaska North Slope well originally completed in February 2014 with their Access375 wireline retrievable ESP system. The Access375 is the fourth-generation system, continuing in use today. The first pump change-out on this well was in October 2015 for the same reason; degraded performance due to abrasion.

The pump change-out was completed in just two days through a live well intervention using a slickline unit, lubricator, and crane. Surface diagnostics determined that the AccessESP permanent magnet motor was fully functional an did not require replacement, reducing operational time and costs.

This proactive pump replacement would be cost prohibitive using a workover rig on a well completed with a conventional ESP system. To replace the pump in a conventional ESP completion, the operator would have to mobilize a workover rig, kill the well, pull the tubing and the entire ESP system, replace the ESP, and rerun the tubing. The time, risk, and cost associated with the intervention and downtime inherent to this approach can be substantial.

“In this project, the operator saved approximately USD 2 million in workover costs by using our slickline-deployed system, which allows the operator to replace the pump while leaving the permanent magnet motor in the well,” said Greg Nutter, AccessESP Vice President of Operations and QHSE. “This pump replacement demonstrates that our system is a flexible and reliable choice for operators looking to optimize production and redduce downtime and associated costs.”

About AccessESP
AccessESP is the leading provider of rigless ESP deployment technology for the oil industry. With installations around the world, its unique system addresses the high intervention costs and deferred production typical of offshore, remote onshore, and high-production ESP wells. The technology is compatible with ESP components from all major suppliers. The company is also the recognized leader in permanent magnet motors, an efficient alternative to conventional ESP induction motors.

AccessESP was founded in 2002 in the UK, and is headquartered in Houston, where it conducts joint research and funded technology development projects with leading operators. For more information, visit or email