The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Sep. 30, 2020
Dagang Oil Field Company of Cnpc, Tianjin, CN;
Xianzheng Zhao, Tianjin, CN;
Xiugang Pu, Tianjin, CN;
Wenzhong Han, Tianjin, CN;
Hu Wang, Tianjin, CN;
Wei Zhang, Tianjin, CN;
Zhannan Shi, Tianjin, CN;
Xiongying Dong, Tianjin, CN;
Jiapeng Wu, Tianjin, CN;
DAGANG OIL FIELD COMPANY OF CNPC, Tianjin, CN;
Abstract
A shale brittleness sweet spot evaluation method is provided, comprising: determining a brittleness evaluation formula of shale brittleness indexes, shale mineral volume percent content and shale total organic matter mass percent content according to a shale volume-mass conversion formula and a brittleness calculation formula containing shale total organic matter volume percent content and the shale mineral volume percent content; drawing a shale brittleness grading chart of a research area target interval according to the brittleness evaluation formula and measured shale mineral volume percent content values and shale total organic matter mass percent content values of multiple shale samples of the research area target interval; and evaluating shale brittleness sweet spots of the research area target interval. By adopting the method, the shale brittleness sweet spots can be accurately and quantitatively recognized, shale exploration and development cost is reduced, and production capacities of gas-bearing shale formation are increased.