Submarine natural gas hydrate core in-situ pressure-holding ct reactor device

A technology of reaction device and reactor, which is applied in the field of in-situ pressure-holding CT reactor device for subsea natural gas hydrate cores, which can solve problems such as inability to obtain accurate scanning images, decline in imaging quality, and decomposition of hydrate cores under pressure loss. , to facilitate analysis and processing, to facilitate measurement work, and to ensure the effect of imaging quality

Active Publication Date: 2020-07-24
DALIAN UNIV OF TECH
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Problems solved by technology

[0002] At present, there are many problems in simulating the temperature and pressure characteristics of subsea natural gas hydrate reservoirs in the research equipment for studying hydrate sediment hydrate distribution. For example, the old CT core detection system is affected by the metal sleeve, and the imaging quality is reduced. The transmission is not clear and has double images; the old core CT scanning system uses a rotating core sleeve and a fixed radioactive source scanning method, and when the surface of the core sleeve cylinder is uneven, it will cause ghost images in the CT scan results, which cannot Accurate scanning images are obtained; most of the existing core detection equipment has the defect of hydrate core decompression and decomposition during the sample transfer process

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  • Submarine natural gas hydrate core in-situ pressure-holding ct reactor device

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Embodiment Construction

[0017] Attached below figure 1 The present invention is described further:

[0018] A submarine natural gas hydrate rock core in-situ pressurized CT reactor device, including a reaction device, the reaction device includes: feed end ball valve 1, reactor end ball valve 2, feed reactor 3, stepper motor guide rail bushing 4 , a pressure-resistant reaction kettle 8 and a semiconductor refrigeration base 9, the left and right of the reaction device are symmetrical; the stepping motor guide rail bushing 4 is located inside the reaction device, and it is connected to one side of the stepping motor guide rail 6, and the stepping motor guide rail 6 A stepper motor 5 is installed on it, and the stepper motor 5 can move up and down on the stepper motor guide rail 6; Between the inner walls; the upper and lower ends of the pressure-resistant reactor 8 are connected to the sample position fixing bushing 7 through the gasket B13, and the reactor end ball valve 2 is located above the sampl...

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Abstract

The invention discloses an in-situ pressure-retaining CT reaction kettle device for a submarine natural gas hydrate rock core, and belongs to the technical field of non-destructive detection of natural gas hydrate and the technical field of reaction instruments. The reaction kettle device comprises a reaction device and a stabilizing device, wherein the reaction device comprises a feeding end ballvalve, a reaction kettle end ball valve and a feeding reaction kettle; a step motor guide rail bushing, a pressure resistant reaction kettle and a semiconductor refrigeration base, the stabilizing device comprises a nitrogen gas cylinder, a gas ISCO pump, an intermediate container, a water bath box, a water tank and a liquid ISCO pump; according to the invention, the decomposition of the hydraterock core can be reduced, the imaging quality can be ensured, the device is high pressure resistant, and the defect of an old scanning mode can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of natural gas hydrate non-destructive detection and reaction instruments, in particular to a CT reactor device for in-situ pressure-holding of a seabed natural gas hydrate core. Background technique [0002] At present, there are many problems in simulating the temperature and pressure characteristics of subsea natural gas hydrate reservoirs in the research equipment for studying hydrate sediment hydrate distribution. For example, the old CT core detection system is affected by the metal sleeve, and the imaging quality is reduced. The transmission is not clear and has double images; the old core CT scanning system uses a rotating core sleeve and a fixed radioactive source scanning method, and when the surface of the core sleeve cylinder is uneven, it will cause ghost images in the CT scan results, which cannot Accurate scanning images are obtained; most of the existing core detection equipment has the defec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/046
CPCG01N23/046
Inventor 宋永臣赵佳飞魏汝鹏杨磊刘卫国刘瑜王大勇张毅杨明军肖波陈家旺
Owner DALIAN UNIV OF TECH
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