OIL FIELD EXPLOITATION METHOD Russian patent published in 1995 - IPC

FIELD: oil extracting industry. SUBSTANCE: extracting and pumping in boreholes are located on oil field according to blocks-closed system. Inside closed blocks central rows of extracting boreholes are earmarked to be transferred in pumping in boreholes to form new members of blocks-closed system. They are drilling horizontal oil extracting boreholes with their places of entry in productive stratum coinciding with place of location of usual oil extracting borehole in central row of existing or forming member of blocks-closed system with azimuthal angle of direction of horizontal part of borehole to direction of row of the borehole of 10 30 deg. and with length of oil extracting part of borehole equal to half of space between oil extracting boreholes in the row. Then working agent is pumped in through pumping in boreholes and exercise transfer of oil extracting boreholes of central row of the blocks-closed system member into pumping in boreholes, except those, that are nearest to horizontal boreholes. method is used in exploitation of oil fields with use of horizontal boreholes. EFFECT: method is used in exploitation of horizontal boreholes. 2 cl, 2 dwg