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:
Dec. 09, 2025
Filed:
Apr. 12, 2022
Chongqing Institute of Geology and Mineral Resources, Chongqing, CN;
Chongqing University, Chongqing, CN;
Yiyu Lu, Chongqing, CN;
Zhaohui Lu, Chongqing, CN;
Jiankun Zhou, Chongqing, CN;
Jiren Tang, Chongqing, CN;
Yunzhong Jia, Chongqing, CN;
CHONGQING INSTITUTE OF GEOLOGY AND MINERAL RESOURCES, Chongqing, CN;
Chongqing University, Chongqing, CN;
Abstract
An experimental system for a pulsed displacement and replacement of methane with carbon dioxide is provided. The experimental system includes a gas supply system, a pulse control system, a reservoir environment simulation system, a data acquisition and processing system and a tail gas recovery system, connected in sequence; and the carbon dioxide output from the gas supply system is converted into a pulsed gas through the pulse control system, the pulsed gas enters the reservoir environment simulation system to shorten a time of displacing and replacing methane with carbon dioxide, the experimental data of the reservoir environment simulation system is recorded in real time, analyzed and processed by the data acquisition and processing system, a dynamic displacement process is reflected in real time, and a relationship between a displacement evaluation indicator and a displacement time is clarified. The disclosure further provides an experimental evaluation method, using the above experimental system.