Patent number: 12345665
Abstract: A calculation method for fractal dimensions of shale pores includes steps as follows. S1: multiple shale samples from a target stratum of a study area are obtained, parameter values of geological parameters of each of the multiple shale samples are obtained, followed by dividing the multiple shale samples into target shale samples and experimental shale samples. S2: PCA is performed on the parameter values to obtain principal components representing a variation of the geological parameters. fractal dimensions are calculated based on an existing fractal dimension calculation method. S3: the principal components are used as independent variables and the fractal dimensions are used as dependent variables, followed by performing regression analysis to obtain a quantitative calculation model. S4: the fractal dimensions of the target shale sample are calculated according to the parameter values and the quantitative calculation model for the fractal dimension based on the parameter values.
Type:
Grant
Filed:
December 20, 2024
Date of Patent:
July 1, 2025
Assignees:
SOUTHWEST PETROLEUM UNIVERSITY, CHINA UNIVERSITY OF GEOSCIENCES, WUHAN, JIANGXI PROVINCIAL SHALE GAS. INVESTMENT COMPANY, LTD
Inventors:
Xinyang He, Kun Zhang, Shu Jiang, Hulin Niu, Weiwei Liu, Songyang Wan, Chengzao Jia, Yan Song, Xiong Ding, Xueying Wang, Yi Shu, Tianyou Zhi, Daiyu Wu, Sihong Cheng, Yongjun Li, Yiting Qiao, Yi Zhang, Jiayi Liu, Lei Chen, Xuefei Yang, Fengli Han, Weishi Tang, Jingru Ruan, Hengfeng Gou, Yi Xiao, Lintao Li, Yipeng Liu, Ping Liu, Zeyun Wang, Laiting Ye, Meijia Wu, Lu Lu
Patent number: 12093343
Abstract: Provided is an analysis method for determining gas-bearing situation of an unknown shale reservoir, includes: S1, selecting a shale reservoir of a target interval of a place; and collecting data of parameters of cores of each of a known gas-bearing shale reservoir A and a known water-bearing shale reservoir B; S2, calculating average values of the parameters of each of the reservoirs A and B respectively; S3, calculating average differences of the parameters of each of the reservoirs; S4, calculating covariance values of the parameters of each of the reservoirs; S5, establishing, according to the covariance values, an equation group and resolving discriminant coefficients; S6, establishing a discriminant equation according to the discriminant coefficients and solving a discriminant index; and S7, obtaining values of parameters of cores of a sample of the unknown shale reservoir, calculating a discriminant value, and determining gas-bearing situation of the unknown shale reservoir.
Type:
Grant
Filed:
March 1, 2024
Date of Patent:
September 17, 2024
Assignees:
Southwest Petroleum University, China University of Geosciences, Wuhan, University of Electronic Science and Technology of China
Inventors:
Kun Zhang, Shu Jiang, Pei Liu, Xuri Huang, Xiangyu Fan, Hong Liu, Hu Zhao, Jun Peng, Xiong Ding, Lei Chen, Xuefei Yang, Bin Li, Binsong Zheng, Jinhua Liu, Fengli Han, Xueying Wang, Xinyang He, Xuejiao Yuan, Jingru Ruan, Hengfeng Gou, Yipeng Liu
Publication number: 20240296204
Abstract: Provided is an analysis method for determining gas-bearing situation of an unknown shale reservoir, includes: S1, selecting a shale reservoir of a target interval of a place; and collecting data of parameters of cores of each of a known gas-bearing shale reservoir A and a known water-bearing shale reservoir B; S2, calculating average values of the parameters of each of the reservoirs A and B respectively; S3, calculating average differences of the parameters of each of the reservoirs; S4, calculating covariance values of the parameters of each of the reservoirs; S5, establishing, according to the covariance values, an equation group and resolving discriminant coefficients; S6, establishing a discriminant equation according to the discriminant coefficients and solving a discriminant index; and S7, obtaining values of parameters of cores of a sample of the unknown shale reservoir, calculating a discriminant value, and determining gas-bearing situation of the unknown shale reservoir.
Type:
Application
Filed:
March 1, 2024
Publication date:
September 5, 2024
Inventors:
Kun Zhang, Shu Jiang, Pei Liu, Xuri Huang, Xiangyu Fan, Hong Liu, Hu Zhao, Jun Peng, Xiong Ding, Lei Chen, Xuefei Yang, Bin Li, Binsong Zheng, Jinhua Liu, Fengli Han, Xueying Wang, Xinyang He, Xuejiao Yuan, Jingru Ruan, Hengfeng Gou, Yipeng Liu