METHOD OF OIL POOL DEVELOPMENT Russian patent published in 2001 - IPC

FIELD: oil-producing industry, particularly, methods of development of oil pools with nonuniform formations. SUBSTANCE: method includes stationary injection of displacement agent through injection wells and oil withdrawal through producing wells. Operating conditions are flexible due to use of periodic producing well operation with their shutin for period of time determined by hydrodynamic research of wells. Results of previous period of operation of each producing well are additionally analyzed and oil movable reserves and radii of zones of well drainage are evaluated. Laboratory researches are conducted for determination of oil volumetric factor and oil displacement factor by injected agent. Down time and time of producing well operation are determined by analytical formulas. EFFECT: higher efficiency of method of development with increased oil recovery of low-permeable part of formation and reduced water cutting of well production. 3 tbl, 1 ex