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Gas hydrate exploitation device

A technology for hydrate and natural gas, which is applied in the fields of fluid extraction, earthwork drilling, drilling equipment, etc., can solve problems such as inconvenience and frequent movement, and achieve the effects of simple structure, improved energy utilization, and reduced energy dissipation and loss.

Inactive Publication Date: 2012-01-18
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] After searching the existing technical literature, it is found that the Chinese patent publication number is: CN101818635A, and the title is "Method for Mining Gas Hydrate by High-pressure Thermal Jet". The mining device in this patent is a very thick cylindrical pipeline. Easy to move frequently

Method used

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Embodiment 1

[0031] Such as figure 1 As shown, the present implementation consists of sequentially connecting the upper part 1 of the mining drill, the transport lifting pipeline 2 and the lower part 3 of the mining drill in series.

[0032] Such as figure 1 and figure 2 As shown, the upper part 1 of the mining drill bit includes: an outer casing 4, a hydrate suction assembly 5, a pipeline connection traction device 6, a water injection assembly 7, a jet water assembly 8, a flow diversion structure 9 and a safety valve disc 10, wherein: the casing The body 4 is connected to the diversion structure 9, the safety valve disc 10 is connected to the valve disc end of the diversion structure 9, the pipeline end of the diversion structure 9 is respectively connected to the water injection component 7, the jet water component 8 and the hydrate suction component 5, and the pipeline The connecting traction device 6 is respectively connected with the water injection assembly 7, the jet water assem...

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Abstract

A gas hydrate exploitation device, which belongs to the technical field of energy exploitation, comprises an upper exploitation drill part, a conveying lift pipe and a lower exploitation drill part. The device is easy to move, and can increase the efficiency and safety of exploitation, the device adopting a bottom-up exploitation method can preliminarily separate and backfill silt into a production well, is more convenient and faster, and can reduce energy consumption, moreover, the facilities of the device are simple, the cost is low, and the device is easy to control, and is highly reliable.

Description

technical field [0001] The invention relates to a device in the technical field of energy exploitation, in particular to a natural gas hydrate exploitation device. Background technique [0002] Natural gas hydrate, also known as clathrate compound. It is an ice-like, non-stoichiometric clathrate crystalline compound composed of water and natural gas under certain conditions, which can burn when exposed to fire. Most of the natural gas hydrates are methane hydrates. Typically, methane separated from gas hydrates is 160 times the volume of gas hydrates, and the total amount of natural gas in solid form is more than twice that of chemical fuel storage, so people regard hydrates as the future main energy source. However, due to the technical and economic feasibility of natural gas exploitation, the current exploitation has not entered the commercial stage. The basic idea of ​​natural gas hydrate exploitation is to decompose the stored natural gas hydrate and then utilize it....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/01E21B43/20E21B10/00
CPCE21B2043/0115E21B41/0099
Inventor 王磊李晓天王志超夏昊何蕴哲周泉沈长贵麻绍钧孙凤鸣王思航
Owner SHANGHAI JIAO TONG UNIV
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