Method and device for determining differential hydrocarbon expulsion of hydrocarbon source rock

• Main Authors: ZHU CHENXI, ZHANG PENGYUAN, JIANG FUJIE, HUANG RENDA
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a method and device for determining the differential hydrocarbon expulsion amount of hydrocarbon source rocks, and the method comprises the steps: obtaining a plurality of hydrocarbon source rock samples of a target area, and determining the hydrocarbon generation capability of the plurality of hydrocarbon source rock samples per unit TOC; according to the hydrocarbon generation capacity of the unit TOC of the hydrocarbon source rock sample, a buried depth-based residual hydrocarbon change curve of the hydrocarbon source rock of the target area is constructed; determining hydrocarbon expulsion areas of the plurality of hydrocarbon source rocks and hydrocarbon expulsion rates of the plurality of hydrocarbon source rocks according to the residual hydrocarbon change curve; according to the hydrocarbon expulsion rates of the multiple hydrocarbon source rocks and the hydrocarbon source rock distribution characteristic parameters of the target area, the hydrocarbon expulsion amounts of the mu