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High-pressure gas dissolved saturation test device and application thereof in gas contained soil sample artificial preparation

A test device and high-pressure gas-dissolving technology, which is applied in the field of artificial simulation sample preparation test of seabed gas-bearing sediments in geotechnical engineering, can solve the problems that gas-bearing soil cannot be artificially prepared indoors, zeolite gas cannot be replaced, and pressure conditions are limited.

Active Publication Date: 2014-05-14
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

Although the gas-bearing soil samples prepared by this method are uniform, the pressure conditions are limited. When the ambient pressure is greater than the adsorption pressure, the gas in the zeolite cannot be replaced.
Therefore, it is only applicable to the shallow sea pressure environment, and cannot be artificially prepared indoors for the air-bearing soil in the simulated deep sea pressure environment

Method used

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  • High-pressure gas dissolved saturation test device and application thereof in gas contained soil sample artificial preparation
  • High-pressure gas dissolved saturation test device and application thereof in gas contained soil sample artificial preparation

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Embodiment Construction

[0049] The composition structure, working principle and application method of the device of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] Such as figure 1 As shown, a high-pressure dissolved gas saturation test device includes a gas source tank 1, a reactor, a lifting device, a geotechnical triaxial test system, a connecting pipeline, a valve and a pressure gauge, and the connecting pipeline connects the reactor and the gas source tank 1 connected.

[0051] The geotechnical triaxial test system is an indoor conventional geotechnical triaxial test system, including a geotechnical triaxial tester 46, a control system and data acquisition system equipment.

[0052] The connecting pipeline is a high-pressure hose 17, and its pressure limit is consistent with that of the reactor, and the inner diameter of the tube is The high-pressure hose 17 is freely deformable and airtight, and the high-pressure hoses made of...

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Abstract

The invention belongs to the technical field of artificial simulation sample preparation testing of geotechnical engineering seabed gas contained deposition, and particularly discloses a high-pressure gas dissolved saturation test device and an application thereof in gas contained soil sample artificial preparation. The device provided by the invention comprises a gas source tank, a reaction kettle, a lifting device, a geotechnique triaxial testing system, a connecting pipeline, a valve and a pressure meter. The artificial simulation preparation of a laboratory gas contained soil sample can be realized without pressure condition restriction by the device; the device is especially suitable for the sample preparation of a high-saturability gas contained deposition soil body in indoor triaxial testing; the gas contained quantity can be controlled artificially and can be quantified accurately; the prepared soil sample is uniform and has preparation repeatability.

Description

technical field [0001] The invention relates to the technical field of artificial simulation sample preparation test of seabed gas-bearing sediments in geotechnical engineering, in particular to a high-pressure dissolved gas saturation test device and its application in artificial preparation of gas-bearing soil samples. Background technique [0002] Submarine shallow gas usually refers to the gas accumulated in the sediment within 1000m below the seabed surface. The components of shallow gas mainly include methane, carbon dioxide, hydrogen sulfide, ethane, etc. Among them, methane generally has the highest content, and is generally distributed in lakes, valleys, bays, deltas and other waters and sea areas with relatively rich oil and gas resources. The gas is mainly derived from the biogenic gas formed by the decomposition of organic matter and the gas produced by deep oil and gas, mantle and magmatic activities and then migrated from the upper part and sealed in the shallo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 王勇孔令伟李雄威杨爱武王艳丽许鹏程
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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