METHOD FOR EXTRACTING HIGHLY WATERED OIL POOL Russian patent published in 2006 - IPC E21B43/20 

FIELD: oil industry, in particular, technology for extracting highly watered oil pools.

SUBSTANCE: in accordance to method, force and product wells are used to exploit oil-saturated and highly watered sections of bed. Technological process is set up for that purpose, including following operations: positioning force tubing pipes in product well; forcing technical water through force tubing pipes positioned in product well, into highly watered bed section by means of piston pumps with excitation of sound harmonics with following excitation of sound waves of varying frequency; creation in highly watered section of bed between product and force wells of standing sound waves; transmission of sound pressure from antinodes of standing waves generated in highly watered bed sections, to seam, located between oil-saturated and highly watered bed sections; forcing of trapped oil from porous environment of oil-saturated section of bed by sound pressure passing through seam; drawing forced trapped oil from porous environment of oil-saturated bed section into the flow of forced technical water.

EFFECT: creation of highly efficient method for limiting water influx in product wells.

3 ex, 3 dwg