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

FIELD: oil production industry. SUBSTANCE: this relates to development of hydrocarbon deposits of complicated geological structure with application of special methods of treating oil bed. According to method, injected into oil bed through injection wells is displacing agent. Bed fluid is recovered through producing wells. Plotted are maps of geological and technological parameters. Selected are most efficient methods of treating oil bed and they are applied in actual conditions. Geological and hydrodynamic model of deposit is created. It includes series of geological maps and maps of development. Indicated in these maps are coordinates of well, geological parameters of bed over permeable intervals, data on bed and bottom-hole pressure from start of development, coordinates of lines of bed protrusions, external and internal contours of oil-bearing area. Model is structurized according to each indication with subsequent normalization of parametric values. For this purpose, drawn up are maps of bed characteristics, oil and water recovery and injection of water. Plotted are maps of current oil-saturation isobars for different dates. Taken into consideration are parameters of higher and lower than standard values. Their selection is effected according to additive diagrams. Application of aforesaid method gives perfect results. EFFECT: higher efficiency. 3 dwg, 2 tbl