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A real-time monitoring device for seabed deformation during hydrate mining

A mining process, real-time monitoring technology, applied in the direction of measuring devices, mining fluid, mechanical solid deformation measurement, etc., can solve rare problems and achieve the effect of ensuring mining safety

Active Publication Date: 2019-08-23
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, no country in the world has realized large-scale commercial exploitation of seabed natural gas hydrate, and the relevant data of trial mining are still in the confidential stage. During the mining process, the subsidence and deformation of the seabed, especially the small deformation and deformation type, and the seabed seismic monitoring technology are comparatively relatively poor. rare

Method used

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  • A real-time monitoring device for seabed deformation during hydrate mining
  • A real-time monitoring device for seabed deformation during hydrate mining
  • A real-time monitoring device for seabed deformation during hydrate mining

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Embodiment

[0022] refer to Figure 1 to Figure 3 , a real-time monitoring device for seabed deformation during hydrate mining, comprising a main frame 1, a detection device, and a sensing and wireless data transmission device;

[0023] An inverted U-shaped handle 4 is arranged above the main frame 1, and at least two movable sleeves 2 and at least two lever fixing rods 6 are arranged around the main frame 1;

[0024] The detection device includes at least two detection straight rods 11 in different directions, the detection straight rods 11 are connected with the main frame 1 through the movable sleeve 2, and are used for lateral expansion and contraction, and the detection straight rods 11 The lower end is provided with at least two fixed brackets 12 evenly distributed vertically with the detection straight rod 11 for fixing the whole device, and a movable lever 7 is provided above the detection straight rod 11 for amplifying the actual shape monitored. Variable, the movable lever 7 is...

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Abstract

The invention discloses a real-time monitoring device for seabed deformation during hydrate mining, which comprises a main frame, a detection device, and a sensing and wireless data transmission device. The invention can monitor the tiny deformation of the seabed in real time and can judge the deformation type and deformation degree at the same time, and the principle is simple and easy to realize; it can monitor the seabed subsidence and the seabed earthquake in real time to ensure mining safety.

Description

technical field [0001] The invention belongs to the technical field of energy exploitation, and in particular relates to a real-time monitoring device for seabed deformation during hydrate exploitation. Background technique [0002] Gas hydrate is a crystalline substance formed by natural gas and water under low temperature and high pressure. It looks like ice and is flammable. It is commonly known as "combustible ice". It exists widely in permafrost and seabeds. It is estimated that the carbon content in natural gas hydrate is twice the total carbon content of other fossil energy sources, and it is a potential energy resource. [0003] At present, three main mining methods have been proposed, including depressurization mining method, heat injection mining method, and chemical inhibitor injection mining method. Among them, the mining conditions of seabed natural gas hydrate are harsh and the mining is more difficult. Submarine gas hydrate reservoirs have a certain bearing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00G01B21/32G08C17/02
CPCG01B21/32G01C5/00G08C17/02E21B41/0099E21B47/001G01B5/30G01B2210/58E21B49/001E21B49/006
Inventor 李栋梁吴起梁德青
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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