Fremgangsmåte og system for regulering av trykk i brønnfluid fra en hydrokarbonbrønn

摘要

A method and a system is disclosed and arranged for pressure regulation of well fluid produced from a hydrocarbon well (W1-W5) in a hydrocarbon production field. The system comprises a pump (6, 206) arranged on a well head (5, 201) in fluid communication with a process fluid passage (207) from the well, the pump arranged for receiving well fluid produced from the well and to deliver the fluid to downstream piping or equipment. The pump comprises a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode, and wherein the pump is driven in power consumption mode by operation of the motor/generator unit as a motor.