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:
Sep. 06, 2022
Filed:
Nov. 29, 2021
Southwest Petroleum University, Chengdu, CN;
Yang Tang, Chengdu, CN;
Zeliang Li, Chengdu, CN;
Guorong Wang, Chengdu, CN;
Qingyou Liu, Chengdu, CN;
Jinhai Zhao, Chengdu, CN;
Guangjie Yuan, Chengdu, CN;
Jinzhong Wang, Chengdu, CN;
Yufa He, Chengdu, CN;
Qingping Li, Chengdu, CN;
Chuanhua Ma, Chengdu, CN;
Yuan Huang, Chengdu, CN;
Other;
Abstract
An in situ exploitation-separation-backfilling integration apparatus for natural gas hydrates is disclosed, consisting of a cyclonic suction device for coarse fraction, a jet flow device for sand discharge and a spiral cyclone device for fine fraction. The cyclonic suction device for coarse fraction is provided with a vortex trough and a cyclonic auxiliary flow channel; the jet flow device for sand discharge mainly consists of a sand discharge sliding sleeve, a sand discharge jet cylinder and a spring, wherein the sand discharge sliding sleeve can control the spraying out of hydraulic fluid and it is provided with a sand discharge butting head; inside the spiral cyclone device for fine fraction is a tapered structure and its upper portion is provided with a centering bracket.