Method, device and system for quantitatively analyzing closure property of trapped fault

• Main Authors: JING ZIWEI, WEI PINGSHENG, FANG LEHUA, ZHANG YAJUN, JING ZIYAN, SU YUPING, CHEN GUANGPO, LI SHUANGWEN, ZHAO WEI, SHI LANTING
• Format: Patent
• Language: Chinese; English
• Published: 22.10.2021
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention provides a method, device and system for quantitatively analyzing the closure property of a trapped fault. The method comprises the steps that: a three-dimensional data body of a to-be-drilled trapped mudstone smearing type fault is obtained, wherein the three-dimensional data body is obtained by scanning and reconstructing a fault simulation model of the to-be-drilled trapped mudstone smearing type fault; according to the three-dimensional data body, the fault zone mudstone smearing thickness and the fault mud ratio of multiple sampling points are obtained; the fault zone mudstone smearing thickness and the fault mud ratio of the plurality of sampling points are fitted, and a fitting coefficient of the fault zone mudstone smearing thickness and the fault mud ratio is determined; according to the fitting coefficient and the fault mud ratio of the multiple sampling points of the to-be-drilled trapped mudstone smearing type fault, fault zone mudstone smearing sealing factors of the multiple sampli