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:
Mar. 30, 2021
Filed:
Dec. 10, 2020
Southwest Petroleum University, Chengdu, CN;
Chengyuan Xu, Chengdu, CN;
Xiaopeng Yan, Chengdu, CN;
Yili Kang, Chengdu, CN;
Hao Zhang, Chengdu, CN;
Haoran Jing, Chengdu, CN;
Jingyi Zhang, Chengdu, CN;
Chong Lin, Chengdu, CN;
Lijun You, Chengdu, CN;
Xiaoqing Qiu, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Abstract
The invention relates to a selection method of loss control materials for lost circulation control in fractured reservoirs based on photoelastic experiments. By using the photoelastic material to simulate rigid lost circulation material, obtaining photoelastic images and load curves during a loading process of plugging zones formed by the lost circulation material, selecting the lost circulation material according to structure stability of plugging zones. Based on 'a relationship between structures and performances' and granular matter mechanics, the present method is with high reliable to duly observe distribution and evolution of internal forces in a pressure-bearing process of plugging zones, reveal an instability mechanism of the plugging zone, and optimize the lost circulation material in a targeted manner; the present disclosure based on mesoscopic structure characterization of plugging zones is for a new idea for material selection of deep fractured reservoirs, of good repeatability, simple operation and low economic cost.