Soil layer deformation testing device in natural gas hydrate horizontal well layered mining process

A technology of layered mining and deformation testing, applied in the fields of mining fluids, measurement, coal gasification, etc., can solve problems such as environmental disasters and endanger the production safety of mining areas, and achieve the effects of less mutual interference, reasonable layout and high measurement data accuracy

Active Publication Date: 2022-02-01
CHINA UNIV OF MINING & TECH
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Problems solved by technology

This will not only endanger the production safety of the mining area, but will even cause environmental disasters due to the huge amount of methane gas with a strong greenhouse effect entering the seawater and the atmosphere

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  • Soil layer deformation testing device in natural gas hydrate horizontal well layered mining process
  • Soil layer deformation testing device in natural gas hydrate horizontal well layered mining process
  • Soil layer deformation testing device in natural gas hydrate horizontal well layered mining process

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] like Figure 1 to Figure 3 As shown, a soil layer deformation test device in the process of layered exploitation of natural gas hydrate horizontal well, including environment simulation system, temperature control system, pressure control system, hydrate synthesis-exploitation simulation system and deformation data measurement system:

[0033] The environment simulation system includes a device housing 26, the inner cavity of the device housing 26 is fi...

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Abstract

The invention discloses a soil layer deformation testing device in a natural gas hydrate horizontal well layered mining process, which can simulate the natural gas hydrate horizontal well layered mining process, and adopts a mode of cooperative acquisition of a high-density resistivity tomography method, a micro-seismic monitoring method, an optical fiber sensing testing method and a mechanical measurement method, soil layer deformation and stress data in the hydrate exploitation process are comprehensively measured and analyzed; meanwhile, the soil layer deformation obvious area is determined through numerical simulation, preliminary experiment development and other methods, various sensors and probes are reasonably pre-buried in the soil layer, and the experiment effects that the sensors are reasonably arranged, mutual interference is small, and the measurement data precision is high are achieved.

Description

technical field [0001] The invention relates to the field of hydrate exploitation, in particular to a soil layer deformation testing device in the layered exploitation process of a natural gas hydrate horizontal well. Background technique [0002] my country's South China Sea is rich in natural gas hydrate resources, and its reserves are as high as 100 billion tons of oil equivalent. It is of great significance to realize its large-scale and low-cost development as soon as possible to meet my country's demand for clean energy. The natural gas hydrate deposits in the pores of the soil layer, which plays a role in cementing sediment particles, filling pores, and increasing sediment density. During the stratified exploitation of natural gas hydrate by horizontal wells, due to the double deficit effect of reservoir energy and material, the overlying soil layer may produce collapse zones, fracture zones, and curved subsidence zones, especially when the overlying soil layer is thi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B47/06E21B43/14E21B43/295E21B43/30E21B43/01
CPCE21B49/00E21B47/06E21B43/14E21B43/295E21B43/305E21B43/01E21B41/0099
Inventor 骆汀汀张宸毅韩涛张涛杨志江张驰赵晓东
Owner CHINA UNIV OF MINING & TECH
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