The HRPCP technology consists in adding HR’s - hydraulic regulators - to traditional PCP; the HR’s are distributed throughout the pump and their design corresponds to coupled pump - well requirements (1).
Consequently, the HRPCP technology is capable of controlling the pump behavior in liquid and multiphase flows: uniform distribution of pressures, reduction of temperatures, handling gas compression without heat build-up and lubrication of rotor - stator interference contact.
Therefore, the ultimate goal of the HRPCP technology is the significant improvement of the pump run life & production performance in liquid and multiphase flows.
The HRPCP technology targets include reactivation of wells considered uneconomic in mature fields, production from complex heavy/waxy/gassy oil wells, efficiency increase of gas well dewatering, enhancement of inefficient gas lift systems, eliminating the need for gas anchors / separators.
The paper focusses first on the HRPCP bench tests dedicated to HR’s optimal design: reduction of frictional torque in liquid flow, pump behavior in stationary and transient multiphase flow, energy savings.