METHOD OF DEVELOPMENT OF GAS FIELD Russian patent published in 2017 - IPC E21B43/00 

FIELD: gas industry.

SUBSTANCE: invention relates to gas industry and can be used in development of deposits of natural gas, mainly at the stage of falling production and at the final stage of development. Method involves selective, during seasonal decrease of consumer demand for gas, shutdown of gas wells in operational zones located in the roof part of the structure with reduced, relative to the average for the deposit, formation pressure and the most close to the center of the depression funnel. Shutdown is performed for a period required for compensation of losses of the formation pressure due to inflow of gas from peripheral zones with a duration determined by results of the previous shutdown. Taken into account is the point of intersection of the first time derivative of the function of gas inflow intensity to the operating zone of the stopped wells and the first derivative of the function of intensity of potential gas production defined as the first derivative of dependence of maximum output of the current formation pressure in the zone at a specified constant value of pressure at the inlet of the gas field. After the shutdown controlled is the value of formation pressure in the zones to its stabilization after starting the wells into operation. Herewith the number of operating wells and process modes of their operation are selected so that the volumes of extracted gas are maximum compensated due to its inflow from adjacent zones.

EFFECT: technical result is increased efficiency of development of deposits of natural gas.

1 cl, 1 ex, 1 tbl, 5 dwg