OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2024 - IPC E21B43/00 E21B43/20 

FIELD: oil industry.

SUBSTANCE: disclosed is a method of developing an oil deposit, which includes determining and analysing data on oil and water flow rates of producing wells of the oil deposit, as well as dynamics of pumping water into adjacent injection wells of a selected development object. At that correlation coefficients between each production well and conjugated injection well are determined, after which production wells are distributed on the basis of Pareto principle in four groups according to values of their oil and water flow rates. Further, in each group, a subgroup with low correlation coefficients from 0 to 0.5 and a subgroup with high correlation coefficients over 0.5 are formed, and discriminants of oil and water flow rates are determined for production wells of all groups, except for the fourth. Then, geological and technical measures are prescribed to limit water extraction and increase oil extraction in production wells from the first, second and third groups depending on location in the subgroup with low or high correlation coefficients and values of their discriminants of oil and water flow rates, and for production wells from the fourth group – depending on location in the subgroup with low or high correlation coefficients. At that, assigned geological and technical measures should not contradict each other with respect to production wells of different groups. Specified geological and technical measures in production wells are specified taking into account the number of injection wells connected to each of production wells. Further, geological and technical measures are carried out and their effectiveness is assessed. After evaluating the effectiveness of geological and technical measures, the cycle of the above steps is repeated.

EFFECT: improving reliability of results of processing geological and field information, completeness of coverage by number of geological and technical measures, degree of consistency, quality of made decisions and their efficiency.

3 cl, 1 dwg, 2 tbl