METHOD FOR DEVELOPMENT OF OIL FIELD WITH STRATA PRESSURE MAINTENANCE

摘要

Disclosed is a method for development of oil field with strata pressure maintenance according to which extraction of crude oil is compensated with nitrogen. Volume of nitrogen that is pumped-in is determined depending on volumetric coefficient of crude oil, extraction of degassed oil, density of degassed oil, strata and standard pressures, rock and standard temperatures and coefficient of super-compressibility of nitrogen atand. Extraction of crude oil is performed from the middle section of the oil field that is at distance from the apical section of the deposit not less than half of thickness of oil-saturated section and not more than quarter of thickness from water-oil contact. The implementation of the method proposed provides comparatively high technological and economic effectiveness of development of oil fields with strata pressure maintenance.