METHOD FOR DEVELOPMENT OF OIL DEPOSIT Russian patent published in 1998 - IPC

FIELD: oil production industry. SUBSTANCE: method is aimed at accelerated reformation of watered oil deposit and involving low-permeable interlayers in development. According to method, productive bed is initially subjected to vibro-seismic treatment by means of source of elastic vibrations installed in one of central wells of deposit. This treatment is carried out until watering of recovered product in whole across deposit is reduced by 3-5%. After that, injection of displacing agent into bed is periodically stopped and renewed. In watered oil bed, vibro-seismic treatment substantially (by 2-3 orders) accelerates process of gravitational separation of oil and water. Cyclic injection induces involvement in development of oil reserve concentrated in low-permeable interlayers. EFFECT: high efficiency.