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:
Aug. 02, 2022
Filed:
May. 07, 2020
China University of Petroleum (East China), Qingdao, CN;
Selskapet Gudme Stad As, Tananger, NO;
Cimc Offshore Engineering Research Institute Co. Ltd., Yantai, CN;
Baojiang Sun, Qingdao, CN;
Ove Tobias Gudmestad, Tananger, NO;
Xuefeng Li, Qingdao, CN;
Dahui Liu, Yantai, CN;
Litao Chen, Qingdao, CN;
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Qingdao, CN;
SELSKAPET GUDME STAD AS, Tananger, NO;
CIMC OFFSHORE ENGINEERING RESEARCH INSTITUTE CO. LTD., Yantai, CN;
Abstract
The present invention relates to the field of natural gas production, and discloses a well structure for natural gas hydrate production, which comprises: a natural gas production well (); an injection well () capable of extending into a geothermal reservoir and injecting a heat-carrying fluid; a curved connecting well (), the inlet end of the curved connecting well () is connected to the outlet end of the injection well (); a hydrate production horizontal well (), which may be arranged in a shallow hydrate reservoir (), the curved connecting well () and the hydrate production horizontal well () are connected by an ascending well section (). With the above technical scheme, the high curvature connected well connecting the horizontal well and the vertical well can be located in the bottom layer below the hydrate reservoir, enhancing the stability and production efficiency of the gas hydrate production well.