METHOD OF OPERATING GAS FIELD IN COLLECTOR-BEAM ARRANGEMENT SCHEME COLLECTION AT FINAL STAGE OF DEPOSIT DEVELOPMENT Russian patent published in 2016 - IPC E21B43/00 

FIELD: gas industry.

SUBSTANCE: invention relates to gas producing industry and can be used in production of gas at gas and gas-condensate deposits using collector-beam arrangement scheme of collection, in period of reduction of production in conditions of accumulation of fluid in wells and loops. According to method on separate loops requiring blowing, high pressure drop is created between well cluster and common collector of building switching valves (ZPA) by changing compression ratio of compressor and simultaneously limiting consumption in rest of loops on working level by means of automatic controls. For this purpose, all wells and controlled points of loops are equipped with telemetry system consisting of pressure and temperature transducers. Method includes constantly monitoring current values and behaviour of change of pressure, temperature on heads of wells, in control points of cluster collector and loop, as well as differential pressure between well head and cluster collector, cluster collector and common collector ZPA. Based on said information, changes of hydraulic resistance are detected and control action in form of pressure reduction in common collector ZPA is generated on a value facilitating reduction of pressure in cluster collector to minimum value of allowable regulation of wells.

EFFECT: high efficiency of operation of gas field due to possibility of operation to minimum values of wellhead pressure without changes in production technology with considerable reduction of losses of gas at purges loops.

1 cl, 6 dwg