METHOD OF GATHERING OF OIL DEPOSIT WELL PRODUCTION WITH HELP OF MULTIPHASE PUMPS Russian patent published in 2003 - IPC

FIELD: oil producing industry, particularly, gathering of oil, gas and water at oil deposit. SUBSTANCE: method includes treatment of gas-liquid mixture with demulsifier, separation of mixture into phases with subsequent discharge of water from apparatus for separation of phases and supply of oil with gas to multiphase pumps suction. In this case, gas-liquid mixture is directed to upper part of apparatus for phases separation in form of inclined tubular water separator; water discharge is carried out under conditions of said separator maximum filling, and oil with gas at definite working pressure is supplied in single flow from highest point of inclined tubular water separator to suction end of multiphase pumps. Pressure in tubular water separator is to be equal to value determined by relationship given in invention description. EFFECT: provided formation of homogeneous oil-gas mixture directly in apparatus for separation of phases. 2 dwg