SYSTEM OF HIGHLY WET HOLE STREAM GATHERING AND UTILISATION OF PRODUCED WATER Russian patent published in 2011 - IPC E21B43/16 

FIELD: gas and oil production.

SUBSTANCE: system consists of producers, of highly wet producers, of inactive wet holes, of group calibrating device - GCD, and of pump-compressor, output of which is connected with pressure wells through distributing manifold. According to the invention, the highly wet producers are connected directly with at least one pump-compressor by means of discharge lines of the GCD for pumping production of highly wet wells into inactive wet holes via discharge lines of the GCD and further along lift pipes through a nozzle. The nozzle consists of a head with connecting thread and two branches inside of which there are located a vertical channel and a grate of directing plates. They facilitate formation of a flat tangential near-the wall flow of pumped fluid descending at angle 45° to cross section of the borehole. Also, the descending flow has zero rate in its central part whereto there are driven globules of oil and gas forming an ascending flow with their continuous accumulation in an upper section of the borehole. Oil and gas are withdrawn from annular space into an oil collector by flow lift procedure with pumping water into the reservoir.

EFFECT: increased oil yield of reservoir at simultaneous reduction of material expenditures for production of water maintaining reservoir pressure, for collection and preparation of oil wells production.

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