METHOD OF WELL OPERATION BY JET PUMP AND INSTALLATION FOR IMPLEMENTATION THEREOF Russian patent published in 2020 - IPC F04F5/54 

FIELD: mining.

SUBSTANCE: method and device are intended for production of fluid. Method consists in lowering into the well on the pipe string a jet pump and lowering the control instrument, measuring pressure, supplying the working fluid to the jet pump, wherein at least one or two instrumentation devices are lowered and arranged with possibility of simultaneous measurement of pressure in the sampling zone and in zone of suction of jet pump or measurement of pressure drop between zones of extraction and suction of jet pump, supply to jet pump of pressure working agent is carried out along pipe string or along inter-tube, pressure parameters are measured in the extraction zone and in the suction area of the jet pump or pressure drop are measured between the zones and pressure data are transmitted from at least one or two test and measurement instruments via a communication cable to a control and information exchange system located at the wellhead, when pressure in suction zone of jet pump decreases below pressure in extraction zone, fluid is extracted, and supply to the jet pump of the pressure working agent is carried out simultaneously or separately from the electric pump and from the system of a pressure pipeline designed to maintain formation pressure. Plant includes a pipe string, on which a jet pump is located, and an instrumentation connected via a communication cable to a control and information exchange system with the possibility of transmitting pressure data to a control and information exchange system located at the wellhead, and further comprises a pressure device configured to supply a pressure working agent to the jet pump through the pipe string or an annulus, at least one or two test instruments, which are installed with possibility of measuring pressure parameters simultaneously in the extraction zone and in the suction zone of the jet pump or measurement of pressure drop between the extraction zone and the suction area of the jet pump, the jet pump comprises a housing, detachable or non-detachable insert, mixing chamber, receiving chamber and check valve separating receiving chamber from extraction zone in jet pump, additionally comprises packer, installed above or below the jet pump, an additional jet pump, an additional integrated test and measurement device installed with possibility of measuring pressure and additional parameters in any given place of the jet installation, and an additional tubing lift, check valve is installed in jet pump housing or inside detachable insert of jet pump, control and measuring device is pressure sensor or differential pressure gauge for determination of pressure drop.

EFFECT: technical result is higher energy efficiency of well operation.

10 cl, 8 dwg