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:
Aug. 25, 2026
Filed:
Nov. 23, 2022
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Exploration & Production Research Institute, Beijing, CN;
Ting Xu, Beijing, CN;
Yingfu He, Beijing, CN;
Haiying Liao, Beijing, CN;
Maolei Cui, Beijing, CN;
Jun Nie, Beijing, CN;
Yang Yang, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC EXPLORATION & PRODUCTION RESEARCH INSTITUTE, Beijing, CN;
Abstract
In a gas injection method for deep-layer strong bottom water reservoir, a plurality of gas injection mediums is provided for the present reservoir at issue, and a miscible feature of each gas injection medium in crude oil of the present reservoir is analyzed, so as to select a number of target gas injection mediums, which is combined with a well group simulation model corresponding to the present reservoir to obtain an optimal gas injection ratio between the target gas injection mediums. Based on the optimal gas injection ratio and the well group simulation model, gas injection simulation is performed for the present reservoir through a plurality of gas injection modes respectively to obtain an increment in recovery efficiency corresponding to each gas injection mode, thereby determining an optimal gas injection mode. Gas injection then is performed in the present reservoir through the optimal gas injection mode.