PROCESS OF DEVELOPMENT OF OIL DEPOSIT Russian patent published in 2003 - IPC

FIELD: oil production. SUBSTANCE: invention can find use in development of water-flooded, water-non- flooded deposits as well as deposits with low penetrable collectors. In correspondence with process driving agent is pumped into injection well. Oil is recovered through production wells with vacuuming. Demulsifying agent is supplied in addition into driving agent before it is pumped into pool. Demulsifying agent ensuring destruction of layer of emulsion under pool conditions on boundary oil-water and proceeding from properties of driving agent to equalize displacement front is chosen. Gas tapped from tubular annulus of adjacent production wells under expansion pressure of 0.01-0.07 MPa is fed into driving agent. EFFECT: raised oil output of pool thanks to increased envelopment of pool by driving and to improved oil-wash-away properties of pumped agent.