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. 01, 2025
Filed:
May. 17, 2024
Beijing Institute of Petrochemical Technology, Beijing, CN;
Daobing Wang, Beijing, CN;
Bo Yu, Beijing, CN;
Mao Sheng, Beijing, CN;
Zhiheng Tao, Beijing, CN;
Shuiqing Hu, Beijing, CN;
Yiqun Yan, Beijing, CN;
Ziyi Xu, Beijing, CN;
Dongliang Sun, Beijing, CN;
Yang Shi, Beijing, CN;
Xiuling Han, Beijing, CN;
Beijing Institute of Petrochemical Technology, Beijing, CN;
Abstract
The present disclosure relates to a multi-stage temporary plugging fracturing method based on a stress cage effect, a device thereof and a storage medium, which are applied to the technical field of oil and gas exploitation. The method includes: determining a plugging point by acquiring a weak stress position on a major fracture; determining the consumption of temporary plugging deflection fluid by calculating a net pressure in a fracture that needs to be increased to generate a branch deflection fracture at the position where a principal stress is minimum; plugging a weakest stress position in the major fracture to form an artificial shielding layer, preventing subsequent fluid pressure from passing forward, thereby changing a geostress field near this position, thus forming an additional induced stress field near the weak position, generating a stress cage effect, and realizing formation of a multi-stage temporary plugging branch fracture in vertical wells.