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. 07, 2021
Filed:
Oct. 26, 2020
Southwest Petroleum University, Chengdu, CN;
Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, CN;
Yang Tang, Chengdu, CN;
Shunxiao Huang, Chengdu, CN;
Guorong Wang, Chengdu, CN;
Qingyou Liu, Chengdu, CN;
Shouwei Zhou, Chengdu, CN;
Xushen Li, Zhanjiang, CN;
Lin Zhong, Chengdu, CN;
Qingping Li, Zhanjiang, CN;
Yufa He, Zhanjiang, CN;
Zhong Li, Zhanjiang, CN;
Yanjun Li, Zhanjiang, CN;
Hexing Liu, Zhanjiang, CN;
Jianglin Zhu, Zhanjiang, CN;
Jiaxin Yao, Chengdu, CN;
Jiang Lu, Zhanjiang, CN;
Leizhen Wang, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, CN;
Abstract
The present invention provides an automatic jet breaking tool for solid fluidization exploitation of natural gas hydrate, which mainly includes an upper joint, an outer cylinder, an inner sliding sleeve, a lockup sliding sleeve, a thrust bearing, a spring, a jet joint, a telescopic jet sprinkler, a plug block and an extrusion seal ring. The present invention mainly adopts the principle of throttling control pressure to control the position of the inner sliding sleeve by controlling a flow rate of a drilling fluid, so as to turn on and turn off the jet breaking tool. The application of the present invention can realize automatic jet breaking of solid fluidization exploitation of the natural gas hydrate, reduce procedures of a round trip operation, and effectively improve the efficiency and safety of the exploitation operation of the natural gas hydrate.