METHOD OF PRODUCTION, COLLECTION, PREPARATION AND TRANSPORTATION OF LOW-PRESSURE GAS-LIQUID MIXTURE AT THE DEVELOPMENT OF GAS-CONDENSATE DEPOSIT Russian patent published in 2018 - IPC E21B43/00 E21B43/34 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the field of the gas industry, to methods for extracting, collecting, preparing and transporting a low-pressure gas-liquid mixture and can be used in the development of a gas condensate field by exploiting production wells with low wellhead pressures in a fountain way and further transportation of low pressure products to a processing plant without the use of compressors and ejectors. Method of extraction, collection, preparation and transportation of a low-pressure gas-liquid mixture in the development of a gas-condensate field includes the use of production wells with high and low wellhead pressures, a gas preparation unit with a control separator, an absorbing well, a gas gathering manifold, pipelines, a processing plant, underground capacity through which the production well is operated while lowering the well head pressure of the production well below the minimum intragranular pressure in the gas gathering manifold. Displacement of the liquid phase through the central tubing takes place by creating a front of displacement of the “gas-condensate” interface to the bottom of the underground tank by directing the gas-liquid mixture of the production well with high wellhead pressure into the space between the lift columns of the underground tank. Control of the completion of the stages of the displacement of gas condensate and water from the underground tank is carried out by changing the wellhead pressure in the tube space of the central lift column of the underground tank. Amount of gas, gas condensate and water displaced from the underground tank is taken into account by the flow meters installed at the outlet of the underground tank, the inlet at the processing plant and the mouth of the absorbing well, respectively.

EFFECT: technical result is to increase the production efficiency of the low-pressure gas-liquid mixture.

1 cl, 2 dwg, 3 tbl