The initial North American installation was completed on May 15, 2015, in a North West Oklahoma well designed to test the pump’s ability to handle a wide range of flow, gas slugs and flow back of frac sand over an extended period of time.

 

The system utilizes a proprietary manufacturing process to provide precise dimensional tolerances, enhanced surface finishes and no undersurface cavities. The WR2 incorporates a superior hydraulic design to result in improved efficiency and reliability, less stress on the system and longer operating life.

 

The WR2 pump reaches a high strength limit of 2,100 MPa (304.5 Ksi), compared to typical stage hardness of 57 HRC for traditional ESP systems, and is designed for flow rates of 250-1,000 bpd and 560-1,900 bpd. Other system components include Borets’ 4.56/117 permanent magnet motors (PMM) and Axiom II variable speed drive (VSD), which allows users to have a single VSD capable of running both PMM and induction motors from the same drive and common interface.

 

“Having a pump that can produce through the frac cleanup and through what would normally be several pump changes during the initial decline will greatly enhance our customers’ return on investment by lowering costs and optimizing the oil produced during this critical period,” said Keith Russell, V.P. of marketing for Borets.

 

To date, there have been 22 successful field trials of the WR2 system, eight in North America. Several of these applications are currently still running; however, three of the wells that were pulled were capable of passing full API testing following, in one case, a 400-day test period.