高含砂？高含氣？WR2泵No Care

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.

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.

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. Borets has completed eight North American applications of its Wide Range Wear Resistant (WR2) pump system. The WR2 system is ideally suited for hash well conditions and has the ability to handle a wide range of production, abrasives and gas with the goal of extending run life and maximizing well interventions.

BORETS WR2 PUMP

The innovatively designed Borets Wide Range Wear Resistant (WR2) pump exploits new technologies, manufacturing process and materials to expand the ESP system capabilities. The WR2 pump is designed to handle harsh well conditions including high amounts of gas and sand produced through the pump. The pump is ideally suited for a wide range of production with the goal of extending run life and minimizing well interventions.

The WR2 utilizes a Metal Injection Molding (MIM) manufacturing process never before used in the ESP industry. MIM provides a step change improvement for various manufacturing processes. It provides precise dimensional tolerances, enhanced surface finishes and no undersurface cavities.

The operating range is greatly enhanced as compared to the conventional ESP designs, since the hydraulically balanced stages reduce thrust wear at boundary conditions. This results in higher reliability, less stress on the system, and longer operating life. The mixed- flow design allows gas to pass more easily through the pump compared to a radial-flow stage, mitigating gas locking and well cycling conditions that can cause electrical shorts and other issues reducing ESP system run life.

Several material combinations were designed by Borets R&D engineers to dramatically improve stage material hardness. Typical stage hardness of 57 HRc is met with high tensile strength limit of 2,100 MPa (304.5 Ksi).

The WR2 is designed for flow rates from 125 – 440 bpd (20 – 70 m3/day), 250 – 1000 bpd (40 – 160 m3/day) and 560-1900 bpd (90 – 300 m3/day).

APPLICATIONS

? Unconventional oil & gas wells

? Wells with unstable flow

? Highly abrasive wells

? Gassy wells

? Cost sensitive environments

? Wells with rapid decline in production

? Frac flow back wells

FEATURES & BENEFITS

? New stage manufacturing process:
– Up to 55 % gas handling without a gas separator
– Unlimited geometrical capability for complex stage design
– Unmatched stage performances for extended pump run life and stable operating parameters
– High operating speeds up to 6,000 rpm:
– Increase production with a shorter overall system length

?High pump efficiency (up to 75 %):

– Cost effective production across a wide operating range

?Extremely high strength stage material with a hardness similar to Tungsten Carbide:

– Ultra-abrasion resistant material for extended run life in sandy and gassy well environments

?Over 2.5 times wider operating range compared to conventional ESPs:

– Ability to adapt to changing well conditions to maximize recovery while minimizing well intervention and nonproductive time