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:
Jul. 14, 2020
Filed:
Oct. 12, 2018
Uti Limited Partnership, Calgary, CA;
Southwest Petroleum University, Chengdu, CN;
Fanhui Zeng, Chengdu, CN;
Jianchun Guo, Chengdu, CN;
Zhangxing Chen, Calgary, CA;
Xinfeng Jia, Calgary, CA;
Xiaozhao Cheng, Chengdu, CN;
Jamie Mcinnis, Calgary, CA;
UTI Limited Partnership, Calgary, CA;
Southwest Petroleum University, Chengdu, CN;
Abstract
Techniques in horizontal well completions that facilitate multistage fracturing may be performed in shale gas reservoirs. The techniques may involve the creation of large scale fracture networks, connecting the reservoir and the wellbore, facilitated by activating pre-existing natural fractures (NFs). In addition, geo-mechanical characteristics facilitate the optimization of maximum stimulated reservoir volumes (SRVs). In particular, completion optimization patterns are provided for horizontal wellbores, designated herein as altered alternate fracturing (AAF) completions. Completion optimization patterns may involve a multi-step combination of simultaneous and alternate fracturing patterns. Additionally, the dynamic evolution and progression of NF growth are modeled using a variety of alternative criteria. Further, specific analyses are provided of how the well completion pattern influences the fracture network. A combination of perforation parameters is provided, together with approaches for real-time control of fluid injection rates, so as to induce stresses in a manner conducive to forming complex fracture networks.