METHOD FOR IDENTIFYING INTERLAYER FLOWS IN THE DEVELOPMENT OF OIL AND GAS CONDENSATE OR OIL FIELDS Russian patent published in 2022 - IPC E21B47/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, and in particular to the control of the dynamic conditions of oil and gas condensate and oil fields. A method for identifying interlayer flows between at least two reservoirs during the development of oil and gas condensate or oil fields is claimed, which includes the stages at which a) at least one oil sample is taken from the wells of each of the indicated at least two reservoirs, b) the contents of the components are determined oil in selected oil samples using geochemical analysis, c) one or more oil components with the largest differences in contents and one or more oil components with the smallest differences in contents are selected in the selected oil samples from different reservoirs, d) one or more ratios of the oil components with the largest differences in contents to the oil components with the smallest differences in contents are then selected, wherein the number of such ratios is equal to at least the number of reservoirs minus one, and e) monitoring the change in these ratios in the oil of the field over time to obtain information about the change in the composition of the oil in percentage terms, based on which the presence of crossflow between the reservoirs and its volume is determined.

EFFECT: providing the possibility of qualitative and quantitative assessment of interlayer crossflows, which makes it possible to increase the success and optimize the ongoing geological and technical measures in the development of oil and gas condensate and oil fields.

7 cl, 9 dwg, 3 tbl