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:
Nov. 26, 2024
Filed:
Aug. 29, 2024
Southwest Petroleum University, Chengdu, CN;
Sichuan Hengyi Petroleum Technology Services Co., Ltd, Chengdu, CN;
Shale Gas Research Institute, Petrochina Southwest Oil and Gas Field Company, Chengdu, CN;
Xinyang He, Chengdu, CN;
Kun Zhang, Chengdu, CN;
Chengzao Jia, Chengdu, CN;
Yan Song, Chengdu, CN;
Hulin Niu, Chengdu, CN;
Jing Li, Chengdu, CN;
Yijia Wu, Chengdu, CN;
Jiayi Liu, Chengdu, CN;
Bo Li, Chengdu, CN;
Yiming Yang, Chengdu, CN;
Liang Xu, Chengdu, CN;
Yongyang Liu, Chengdu, CN;
Jia He, Chengdu, CN;
Jiajie Wu, Chengdu, CN;
Zhi Gao, Chengdu, CN;
Tian Tang, Chengdu, CN;
Cheng Yang, Chengdu, CN;
Lei Chen, Chengdu, CN;
Xuefei Yang, Chengdu, CN;
Fengli Han, Chengdu, CN;
Xueying Wang, Chengdu, CN;
Weishi Tang, Chengdu, CN;
Jingru Ruan, Chengdu, CN;
Hengfeng Gou, Chengdu, CN;
Lintao Li, Chengdu, CN;
Yipeng Liu, Chengdu, CN;
Ping Liu, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Sichuan Hengyi Petroleum Technology Services Co., Ltd, Chengdu, CN;
Shale Gas Research Institute, PetroChina Southwest Oil and Gas Field Company, Chengdu, CN;
Abstract
A method for calculating a surface relaxation rate of a shale includes: a relaxation time T distribution curve and a pore throat radius r distribution curve are obtained through experiments; abscissas of the two distribution curves are standardized, and the abscissa of the relaxation time T distribution curve is expanded or shrunk to ensure an abscissa value corresponding to a maximum ordinate value in the transformed relaxation time T distribution curve is same as an abscissa value corresponding to a maximum ordinate value in the pore throat radius r distribution curve; straight lines with a number of N parallel to a y-axis of a combined curve graph including the two distribution curves are drawn and a ρ value corresponding to each straight line is calculated; and ρ value with the number of N are processed to obtain a final surface relaxation rate ρ'.