METHOD OF HYDROCARBONS EXTRACTION FROM RESERVOIR AND HYDROCARBONS EXTRACTION PLANT

摘要

FIELD: oil and gas industry.;SUBSTANCE: invention is related to hydrocarbons extraction from reservoir. The method of hydrocarbons extraction from reservoir contains the stages which ensure availability of the plant comprising: an injector equipped with two casing strings for steam injection, and each string comprises a steam injection valve, a producers equipped with at least one casing string for hydrocarbons extraction, a group of measurements sensors that includes at least flow sensors or pressure sensors located at the surface in the areas of location of the above steam injection valves in the injector, at least one pump for hydrocarbons extraction placed in the producer, the plant operation control and monitoring device; steam is injected to the injector; hydrocarbons are extracted by means of the pump in the producer; pumping rate is based on the difference between temperature at the pump input and evaporation temperature calculated on the basis of pressure measured at the pump input; a group of parameters is maintained within the range of preset limit values by adjustment of the pump rotation frequency in the producer and/or adjustment of injected steam flow rate in the injector; the measured flow rates are compared with minimum parameterized flow rate values; alarm signal is sent and/or the plant is switched off when the measured values are below the parameterized values.;EFFECT: increasing hydrocarbon extraction efficiency.;14 cl, 2 dwg