Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for exploiting natural gas hydrate

A technology of natural gas and hydrate, which is applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., can solve the problems affecting the large-scale production of natural gas hydrate, and achieve the effect of large-scale production convenience

Inactive Publication Date: 2014-04-30
范富仓
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the exploitation of natural gas hydrate is still in the experimental stage. Combustible ice is also called natural gas hydrate, so it is called natural gas hydrate in the following. Appropriate method, affecting large-scale production of gas hydrates

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for exploiting natural gas hydrate
  • Method for exploiting natural gas hydrate
  • Method for exploiting natural gas hydrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] exist figure 1 Among them, there is a continental shelf (4) on the seabed, and there are natural gas hydrates (5) below the continental shelf (4). When the natural gas hydrate (5) is exploited, the wellbore (10) is first excavated on the continental shelf (4) on the seabed, and the wellbore ( 10) After digging, build the shaft base (6) around the position of the shaft (10) above the continental shelf (4), leave a prefabricated hole on the upper part of the shaft base (6), and then place it on the mining platform (1) , hoist the pre-made cylindrical prefabricated part (2) into the wellbore base (6) at the bottom of the wellbore, and make the lower part of the cylindrical prefabricated part (2) just on the wellbore base (6) In the prefabricated hole above, then by analogy, the remaining cylindrical prefabricated parts are put into the well shaft (10) the inside successively, until reaching the sea surface, so the well shaft has just been built. There is a layer of sealin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for exploring natural gas hydrate. The method comprises the steps of: manufacturing a plurality of cylindrical prefabricated parts before the natural gas hydrate is explored, wherein a plurality of prefabricated holes are reserved at the middle parts of prefabricated blocks at the upper parts of the cylindrical prefabricated parts, the lower parts of the cylindrical prefabricated parts are provided with connecting columns, a layer of seal material is arranged on each connecting column to prevent sea water from flowing into the mineshaft, and the prefabricated holes exactly correspond to the connecting columns; digging the mineshaft on a continental shelf at the bottom of the sea; building a mineshaft base around the mineshaft on the continental shelf at the bottom of the sea, wherein prefabricated holes are also reserved at the upper part of the mineshaft base; suspending the cylindrical prefabricated parts on an exploring platform and putting the cylindrical prefabricated parts into the mineshaft base at the bottom of the mineshaft, so that the connecting columns are exactly put in the prefabricated holes on the mineshaft base; and connecting the residual cylindrical prefabricated parts with one another in the same way till reaching the sea surface, and finally completing the building of the mineshaft.

Description

Technical field [0001] The invention relates to a construction method of a well shaft used in the exploitation of natural gas hydrate. Background technique [0002] At present, the exploitation of natural gas hydrate is still in the experimental stage. Combustible ice is also called natural gas hydrate, so it is called natural gas hydrate in the following. Appropriate methods affect the large-scale production of gas hydrates. Contents of the invention [0003] In order to overcome the current situation, the exploitation of natural gas hydrate is still in the trial stage. In the process of exploitation, how to extract natural gas hydrate from the ground has not yet been a suitable method, which has affected the large-scale production of natural gas hydrate. In view of the shortage of large-scale mining, the present invention provides a method for mining combustible ice, which can enable large-scale mining of natural gas hydrate. [0004] The technical solution adopted by ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B43/01
Inventor 范富仓
Owner 范富仓
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com