Development of the AccessESP core offering, the WRESP conveyance system, necessitated building a capability that resulted in developing technologies that have the potential to overcome many of today’s ESP limitations.
Motor Test System
- An industry leading, multi-million dollar motor test and qualification system specifically designed to perform accelerated testing of PMMs and drives.
- A unique qualification process, consisting of eight test batteries, to qualify PMMs and the compatibility of drives with PMMs.
- Testing protocols adopted by major operators for their internal testing (see SPE 185129-MS).
- Qualification tests for a number of operators for a range of PMMs and drives completed
- In 2013, the Company made a significant investment to develop a test site specifically tailored to testing and qualification of WRESP technology.
- The site, one hour South of Houston, includes: a 10,000 ft deep, 9 5/8” cased well (never produced); 30 surface acres and a 220’ X 160’ pad.
- Internal tests, client field and client R&D tests have been performed at this location for multiple major operators.
Operator Driven R&D Initiatives
- Deepwater, high horsepower permanent magnet motors are in development for larger casing and tubing sizes, with increased power densities of over 30HP per foot.
- Systems are being studied for use in subsea wells where a riserless, light-water intervention vessel can be used without pulling the subsea tree.
- The encapsulated power cable (EPC) developed in collaboration with major operators has been the seed for a long life permanent completions project, where cable and connector reliability limit ESP applications
Deepwater production and recovery can be significantly improved by using ESPs. Operator concern of system/pump/motor failure driving intervention costs and significant impact on production has limited the application of ESPs. With a reliable wireline intervention ESP system, riserless light well intervention becomes a valuable option on many subsea fields.
Unconventional reservoirs produce significant debris and solids, in particular in the initial production period. The ability to change out ESPs with slickline has the potential to extend their application to many basins not considered candidates today.