Method for quantitatively evaluating on-source trapped oil and gas accumulation effectiveness

• Main Authors: PENG GUANGRONG, LIANG JIE, SONG PENGLIN, GAO XIANG, LIU HUA, LIU JINGDONG, LIU PEI, XU LEYI
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2023
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention belongs to the technical field of oil and gas geological exploration, and relates to a method for quantitatively evaluating entrapped oil and gas reservoir forming effectiveness on a source, which comprises the following specific steps of: obtaining a fault conduction coefficient based on an obtained fault activity rate in a key reservoir forming period and a statistical contact area between an oil source fault and hydrocarbon source rock; obtaining a trap-structure ridge relation coefficient based on the measured cross section ridge transverse length occupied by the trap projection and the sum of the transverse lengths of all cross section ridges of the fault; obtaining an oil-gas migration coefficient of the trap based on the obtained average hydrocarbon expulsion intensity of the fault position and the measured distance from the hydrocarbon source rock to the trap; according to the fault conduction coefficient, the trap-structure ridge relation coefficient and the oil-gas migration coefficien