Transcoil rigless-deployed ESP system gets stranded production back on line, reduces installation time by more than 50%
An operator in the Middle East was experiencing long lead times to get a rig on location to retrieve and install electrical submersible pumping (ESP) systems. Yearly rig schedules made it difficult to arrange unplanned workovers, resulting in down time of 3 to 6 months or longer. The operator was looking for an alternative deployment method to eliminate the down time and cost associated with using a rig to retrieve and install ESP systems.
Baker Hughes, a GE company (BHGE), worked with the operator to develop a solution that not only eliminates the rig but also addresses harsh downhole conditions, including high levels of H2S in the fluid stream. The TransCoil™ riglessdeployed ESP system features an inverted ESP system that connects the motor directly to a new, proprietary power cable configuration that extends the setting depth of rigless-deployed ESP systems. The system metallurgy mitigates potential H2S damage to the equipment. The TransCoil technology eliminates the traditional ESP power cable-to-motor connection for even greater system reliability. Plus, unlike wireline deployed ESPs, the fully retrievable TransCoil system does not have an in-well “wet connection,” which requires a rig to pull and replace if the wet connection fails.
The first TransCoil system was installed in a well that had been waiting for a year for a rig to replace an ESP. The installation, including the mobilization time of a BHGE coiled tubing unit, reduced overall installation time by 50% compared to a rig-deployed system.
Download the PDF to read the full case study.