Patent number: 12338732
Abstract: A quantitative prediction method for gas content of deep marine shale includes: obtaining raw data of known wells; establishing relationship formulas between pore specific surface areas and adsorbed gas contents of a known well in an area as an adsorbed gas content quantitative prediction model; establishing relationship formulas between pore volumes and free gas contents of the known well as a free gas content quantitative prediction model; summing the adsorbed gas contents and corresponding free gas contents to obtain total gas contents; calculating adsorbed gas contents, free gas contents and total gas contents of the known wells; drawing a predicted adsorbed gas content contour map, a predicted free gas content contour map and a predicted total gas content contour map; and reading an adsorbed gas content, a free gas content and a total gas content of an unknown well in the area from the above contour maps.
Type:
Grant
Filed:
October 17, 2024
Date of Patent:
June 24, 2025
Assignees:
Southwest Petroleum University, Sinopec Southwest Petroleum Bureau Co., Ltd, PetroChina Zhejiang Oilfield Company
Inventors:
Xinyang He, Kun Zhang, Hulin Niu, Chengzao Jia, Yan Song, Zhenxue Jiang, Shu Jiang, Xueying Wang, Nanxi Zhang, Xiaoxia Dong, Jun Dong, Ruisong Li, Tong Wang, Pu Huang, Jiasui Ouyang, Xingmeng Wang, Shoucheng Xu, Hanbing Zhang, Yubing Ji, Lei Chen, Xuefei Yang, Fengli Han, Weishi Tang, Jingru Ruan, Hengfeng Gou, Lintao Li, Yipeng Liu, Ping Liu
Publication number: 20250129717
Abstract: A quantitative prediction method for gas content of deep marine shale includes: obtaining raw data of known wells; establishing relationship formulas between pore specific surface areas and adsorbed gas contents of a known well in an area as an adsorbed gas content quantitative prediction model; establishing relationship formulas between pore volumes and free gas contents of the known well as a free gas content quantitative prediction model; summing the adsorbed gas contents and corresponding free gas contents to obtain total gas contents; calculating adsorbed gas contents, free gas contents and total gas contents of the known wells; drawing a predicted adsorbed gas content contour map, a predicted free gas content contour map and a predicted total gas content contour map; and reading an adsorbed gas content, a free gas content and a total gas content of an unknown well in the area from the above contour maps.
Type:
Application
Filed:
October 17, 2024
Publication date:
April 24, 2025
Inventors:
Xinyang He, Kun Zhang, Hulin Niu, Chengzao Jia, Yan Song, Zhenxue Jiang, Shu Jiang, Xueying Wang, Nanxi Zhang, Xiaoxia Dong, Jun Dong, Ruisong Li, Tong Wang, Pu Huang, Jiasui Ouyang, Xingmeng Wang, Shoucheng Xu, Hanbing Zhang, Yubing Ji, Lei Chen, Xuefei Yang, Fengli Han, Weishi Tang, Jingru Ruan, Hengfeng Gou, Lintao Li, Yipeng Liu, Ping Liu
