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:
Jun. 15, 2021
Filed:
Nov. 12, 2018
China University of Mining and Technology, Jiangsu, CN;
Xuzhou Olivine Geoscience & Geotech Co., Ltd, Jiangsu, CN;
China University of Petroleum, East China, Shandong, CN;
Anhui University of Science and Technology, Anhui, CN;
Wuhan Institute of Technology, Hubei, CN;
Shuxun Sang, Jiangsu, CN;
Haiwen Wang, Shandong, CN;
Xiaozhi Zhou, Jiangsu, CN;
Liwen Cao, Jiangsu, CN;
Shiqi Liu, Jiangsu, CN;
Huihu Liu, Anhui, CN;
Zicheng Li, Hubei, CN;
Jinlong Jia, Hubei, CN;
Huazhou Huang, Jiangsu, CN;
Changjiang Liu, Shandong, CN;
Hongjie Xu, Anhui, CN;
Ran Wang, Jiangsu, CN;
Shuyun Zhu, Jiangsu, CN;
China University of Mining and Technology, Jiangsu, CN;
XUZHOU OLIVINE GEOSCIENCE & GEOTEC CO., LTD., Jiangsu, CN;
CHINA UNIVERSITY OF PETROLEUM, EAST CHINA, Shandong, CN;
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY, Anhui, CN;
WUHAN INSTITUTE OF TECHNOLOGY, Hubei, CN;
Abstract
A simulation test system for gas extraction from a tectonically-deformed coal seam in-situ by depressurizing a horizontal well cavity. A coal series stratum structure reconstruction and similar material simulation subsystem simulates a tectonically-deformed coal reservoir. A horizontal well drilling and reaming simulation subsystem constructs a U-shaped well in which a horizontal well adjoins a vertical well, and performs a reaming process on a horizontal section thereof. A horizontal well hole-collapse cavity-construction depressurization excitation simulation subsystem performs pressure-pulse excitation and stress release on the horizontal well, and hydraulically displaces a coal-liquid-gas mixture such that the mixture is conveyed towards a vertical well section. A product lifting simulation subsystem further pulverizes the coal and lifts the mixture. A gas-liquid-solid separation simulation subsystem separates the coal, liquid and gas. A monitoring and control subsystem detects and controls the operation and the execution processes of equipment in real time.