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Method for restraining gas hydrate in natural gas pipe line and device thereof

A technology for gas transmission pipelines and natural gas, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve problems such as reducing gas transmission costs, reduce gas transmission costs, achieve significant economic benefits, and reduce gas production and costs. The effect of gas transmission costs

Active Publication Date: 2008-01-02
BEIJING UNITY BENEFICIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can effectively solve the problem of natural gas hydrate blocking gas transmission pipelines, overcome the defects of existing natural gas hydrate suppression methods, ensure the smooth flow of natural gas transmission pipelines, and greatly reduce gas transmission costs; and it is easy to implement, safe, reliable and economical Significant benefit

Method used

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  • Method for restraining gas hydrate in natural gas pipe line and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for suppressing natural gas hydrate in a natural gas pipeline, the method is: a pipe fitting 2 equipped with a solid chemical column is arranged on a natural gas transmission pipeline 1 to suppress natural gas hydrate in the natural gas transmission pipeline; the solid chemical Column 22 has an inhibitory effect on natural gas hydrate in the natural gas pipeline;

[0020] The solid medicament column includes raw materials in the following percentages by weight: polyvinylpyrrolidone 100%;

[0021] Add clear water to the above raw materials, knead them into a mud ball, put them into a mold and extrude them, and then harden and dry naturally at room temperature together with the mold for at least 2 hours, take out the medicine from the mold, and naturally harden and dry at room temperature for at least 4 hours , can be made into a solid pharmaceutical column.

[0022] As shown in Fig. 1, a natural gas hydrate suppression device in a natural gas pipeline includes ...

Embodiment 2

[0024] Repeat Example 1, the only difference is: the solid drug column includes the following raw materials in weight percentage: 50% of polyN-vinylpyrrolidone; 50% of butyl derivatives of polyN-vinylpyrrolidone.

Embodiment 3

[0026] Repeat Example 1, the difference is only: the solid medicament column includes the following raw materials in weight percentage:

[0027] Hydroxyethyl Cellulose 30%;

[0028] N-vinyl caprolactam and N-vinylpyrrolidone copolymer 30%;

[0029] Acrylamide and maleimide copolymer 40%.

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Abstract

The invention discloses an inhibiting method of gas hydrate on natural gas pipelines, which is characterized by the following: arranging a tube element on the gas pipelines; filling the pipelines with solid state agent pillar; inhibiting the gas hydrate in the pipelines. This invention is safe and easy, which possesses distinctive economic benefit.

Description

technical field [0001] The invention relates to a method for inhibiting natural gas hydrate in a natural gas pipeline. Background technique [0002] Under certain conditions, natural gas and water can form natural gas hydrate crystals composed of unit cells; the hydrate crystals are first precipitated at the interface between natural gas and water and dispersed in water, and then these crystals grow, coalesce, and deposit; if If no effective suppression measures are taken, the natural gas hydrate will block the natural gas transmission pipeline, making the natural gas unable to be transported normally, and in severe cases, it will cause pipeline blockage accidents and cause major economic losses. The currently used natural gas hydrate suppression methods include reducing pressure, maintaining a certain temperature, reducing natural gas water content, using natural gas hydrate inhibitors, etc., but all of them have certain defects. [0003] The pressure reduction method is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/02F17D3/12C08L39/06C08L1/26C08L33/26C08L29/04
Inventor 李文权陈曦李向东
Owner BEIJING UNITY BENEFICIAL TECH CO LTD