METHOD FOR OPERATION OF A GROUP OF OIL PRODUCING WELLS AND PLANT FOR ITS EMBODIMENT Russian patent published in 1996 - IPC

FIELD: methods for well operation by natural pressure gas lift; applicable in oil producing industry for lifting the fluid from wells with the aid of gas natural energy. SUBSTANCE: method for operation of a group of oil producing wells includes lifting of oil from wells by introduction of gas through their drill string-borehole annulus. Gas fed from exterior is accumulated in collector for raw gas before its supply to the preparation unit. After drying and cleaning in the preparation unit, the gas is supplied to the collector of distribution of dry gas. Then, it is supplied by self-distribution to oil producing wells, including the wells with deficit of used gas. Products of gas cleaning are accumulated in the collector of distribution of cleaning products. They are supplied, as required, to drill string-borehole annulus, both, oil producing and gas wells. The plant for energy-saving method of operation of a group of oil producing wells has gas pipeline to gas producer, gas preparation unit, reagent unit, gas dispensing battery with lines for their blowing to flares. Gas dispensing battery is made in form of unit comprised of parallel three collectors which are interconnected. Two first of them are connected with lines for their blowing for flares. They are interconnected through gas preparation unit. Each of them separately is communicated with drill string- borehole annulus of oil producing wells. EFFECT: maximum utilization of natural energy of gas from gas-bearing formations, gas cap of deposit and associated petroleum gas coming from oil formation for oil stimulation from a group of wells operated by natural pressure gas lift, plunger lift, flow-type lift, and others; reduced specific expenditures for oil lift, and utilization of gas cleaning products. 2 cl, 1 dwg