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A kind of preparation device and preparation method of diagenetic natural gas hydrate

A natural gas and hydrate technology, which is applied in gas fuel, petroleum industry, fuel and other directions, and can solve the problems of not being able to be put into the core holder, and the natural gas hydrate cannot truly simulate the state of natural hydrate.

Active Publication Date: 2021-04-09
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0007] 1. The above-mentioned natural gas hydrates cannot truly simulate the state of natural hydrates generated in the formation, and the existing equipment has a low yield in the process of forming products and cannot be mass-produced in the industry, so it is urgent to improve them
[0008] 2. Most of the above-mentioned natural gas hydrates cannot form formed natural gas hydrates, and thus cannot be used in laboratory experiments, and cannot be placed in laboratory core holders to simulate formation conditions for gas flooding replacement or chemical flooding Replace the methane in the natural gas hydrate, so as to simulate the real natural conditions for the exploitation of natural gas hydrate, and obtain the corresponding experimental data, and further formulate the plan for the exploitation of natural gas hydrate

Method used

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  • A kind of preparation device and preparation method of diagenetic natural gas hydrate
  • A kind of preparation device and preparation method of diagenetic natural gas hydrate

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035]A preparation device for diagenetic natural gas hydrate, comprising a water tank 17, a natural gas cylinder 25, a vacuum pump (a15, b16), a cold water storage tank 14, a hydraulic press 1 and a natural gas hydrate synthesis device 7, the water tank 17, a water inlet pipe 18 , precooling system a19, water injection pump 20, and high-pressure atomizer 26 are connected in sequence, and natural gas cylinder 25, intake pipe 24, precooling system b23, gas booster ...

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Abstract

The invention provides a preparation device and method of diagenetic natural gas hydrate, which relates to the field of preparation of natural gas hydrate. The device includes a water tank, a natural gas cylinder, a vacuum pump, a cold water storage tank, a hydraulic press and a natural gas hydrate synthesis device. The water tank , pre-cooling system, water injection pump and high-pressure atomizer are connected in sequence, natural gas cylinders, pre-cooling system, gas booster pump, and high-pressure atomizer are connected in sequence, and the high-pressure atomizer is set in the synthesis reactor. The invention can realize the synthesis of customized stratum natural gas hydrate, and provides technical support for the development of experimental test data and subsequent exploitation technology of natural gas hydrate.

Description

technical field [0001] The invention relates to the technical field of preparation of natural gas hydrates, in particular to a preparation device and method for diagenetic natural gas hydrates. Background technique [0002] Natural Gas Hydrate (Natural Gas Hydrate / Gas Hydrate), a white crystalline solid organic compound that looks like ice or dense like snow, chemical formula CH 4 ·xH 2 O. Flammable ice is an ice-like crystalline substance that is distributed in deep-sea sediments or permafrost in land areas and is formed by natural gas and water under high pressure (>10MPa) and low temperature (<10°C) conditions. Non-stoichiometric clathrates of natural gas and water. 1 cubic meter of combustible ice can be converted into 164 cubic meters of natural gas and 0.8 cubic meters of water. During exploitation, a large amount of methane gas can be released only by raising the temperature and depressurizing the solid "natural gas hydrate". Under high pressure, the methan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/10
CPCC10L3/108
Inventor 朱珊珊王路施雷庭汪士凯陈洪舒政叶仲斌
Owner SOUTHWEST PETROLEUM UNIV
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