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:
Nov. 03, 2020
Filed:
Oct. 14, 2019
Southwest Petroleum University, Sichuan, CN;
Yang Tang, Sichuan, CN;
Guorong Wang, Sichuan, CN;
Shouwei Zhou, Sichuan, CN;
Qingyou Liu, Sichuan, CN;
Lin Zhong, Sichuan, CN;
Wang Li, Sichuan, CN;
Qingping Li, Sichuan, CN;
Qiang Fu, Sichuan, CN;
Yufa He, Sichuan, CN;
Chuan Wang, Sichuan, CN;
Leizhen Wang, Sichuan, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Abstract
Disclosed is a device for solid-state fluidized mining of natural gas hydrates in a shallow seabed, including: a sea surface support system, a pipeline delivery system, and an undersea drilling system. The sea surface support system includes a hydrate drilling vessel floating on seawater. The pipeline delivery system includes a continuous double-layer oil pipe, a recyclable conduit installed in a sediment cover, an open-hole steering packer installed outside the recyclable conduit. The undersea drilling system includes a hydrate slurry separator, a single screw pump, a hydraulic motor, a jet head and a differential pressure sliding sleeve close to the hydrate drill bit. The present invention has the following beneficial effects. The device achieves a multi-directionally horizontal drilling and production in the hydrate reservoir with a single well head, improving the drilling efficiency and single well production.