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:
Apr. 30, 2024
Filed:
Sep. 27, 2023
Chongqing Institute of Geology and Mineral Resources, ChongQing, CN;
Chongqing Huadi Resources Environment Technology Co., Ltd, ChongQing, CN;
Pei He, ChongQing, CN;
Ye Zhang, ChongQing, CN;
Jinxi Wang, ChongQing, CN;
Jianqiang Zhang, ChongQing, CN;
Jiankun Zhou, ChongQing, CN;
Xiaozhong Guo, ChongQing, CN;
Yanling Huang, ChongQing, CN;
Liming Ouyang, ChongQing, CN;
Chongqing Institute of Geology and Mineral Resources, ChongQing, CN;
Chongqing Huadi Resources Environment Technology Co., LTD, ChongQing, CN;
Abstract
An induced earthquake evaluation method for hydraulic fracturing activated faults includes obtaining an induced earthquake evaluation unit, cumulative injection equivalent energy, induced earthquake probability of fault type, induced earthquake probability of fault distance, hydraulic fracturing fluid diffusion capacity in fractured formation, new effective fault stress after fracturing, formation fluid pressure change rate and cumulative released equivalent energy. The probability of induced earthquake by hydraulic fracturing can be obtained. The induced earthquake possibility of each evaluation unit or single well under different stages of hydraulic fracturing, different construction injection methods and production conditions can be quantitatively evaluated. The method provides a quantitative result that can provide data support for optimizing hydraulic fracturing and reducing induced earthquake hazards.