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. 24, 2024
Filed:
Jan. 04, 2021
Fu Zhou University, Minhou Fujian, CN;
Abstract
A self-entry exploitation device and method for marine natural gas hydrates is provided. The exploitation device includes a self-entry structural body (), a sand control device () and a gas-liquid lifting system. The self-entry structural body () is a gravity anchor. The sand control device () and the gas-liquid lifting system are mounted on the self-entry structural body (). At least one cavity () is formed between the self-entry structural body () and the sand control device (), and the cavity () is communicated with at least one channel. The sand control device () allows liquid and gas to pass through to enter the cavity () and is able to filter out silt. The gas-liquid lifting system includes at least one lifting power device () and has an end connected to the cavity () and an end extending out through a pipeline. By adoption of the exploitation device, drilling is not needed, the self-entry structural body () can enter a natural gas hydrate reservoir or a free gas layer below the natural gas hydrate reservoir, so that depressurizing exploitation can be realized, an exploitation system can be withdrawn, and the exploitation cost of natural gas hydrates can be greatly reduced.