Device and method for dredging gas production pipeline blocked due to freezing

A pipeline and freeze-blocking technology, applied in cleaning methods and appliances, chemical instruments and methods, cleaning hollow objects, etc., can solve problems such as long distance, poor effect, poor dredging effect, etc., to ensure normal and smooth transportation Effect

Inactive Publication Date: 2015-05-20
杨玉林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the method of venting and unblocking can only be implemented at both ends of the pipeline, and the clogged part of the pipeline is often located in the middle of the pipeline, with a long distance and poor effect
And when using medicine to unblock, because the pipeline is blocked, the natural gas cannot flow, and the medicine cannot be effectively pushed to the blocked part, and due to terrain restrictions, if the blocked part is on an uphill section of the pipeline, the medicine cannot reach the blocked part, and the dredging effect is not good. it is good

Method used

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  • Device and method for dredging gas production pipeline blocked due to freezing
  • Device and method for dredging gas production pipeline blocked due to freezing
  • Device and method for dredging gas production pipeline blocked due to freezing

Examples

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no. 1 example

[0044] For the first embodiment, refer to Figure 1-4 , The equipment for dredging freezing of gas production pipelines includes a steam generator, and the steam generator includes a generator body 100 and a water supply device connected to the generator body 100 , and a steam delivery pipe is connected to the generator body 100 .

[0045]Wherein, the generator body 100 is provided with an inspection port and an inspection cover for blocking the inspection port, and the inspection cover is rotatably connected to the generator body 100; the generator body 100 is also provided with Sewage outlet to realize the timely discharge of sewage; the water supply device provides raw materials for the generation of steam, and the raw materials are soft water, and the soft water refers to water that does not contain or contains less soluble calcium and magnesium compounds. The scale left after water vaporization is very little, and will not have a great impact on the generator body 100; th...

no. 2 example

[0074] The second embodiment, the device provided by the embodiment of the present invention, its realization principle and the technical effect produced are the same as the first embodiment, for the sake of brief description, for the parts not mentioned in the device embodiment, please refer to the first embodiment Corresponding content.

[0075] In this embodiment, the steam generator is an ordinary boiler; the steam delivery pipe is a plastic hose.

[0076] The purpose of selecting ordinary boilers and plastic hoses is that they are low in cost, and can also achieve the effect of the equipment for dredging freezing blockage of gas production pipelines under normal circumstances.

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PUM

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Abstract

The invention provides a device and method for dredging a gas production pipeline blocked due to freezing and belongs to the technical field of natural gas production. The device for dredging the gas production pipeline blocked due to freezing comprises a steam generator, wherein the steam generator comprises a generator body and a water supply device which is communicated with the generator body, and a steam delivery pipe is communicated with the generator body. The method for dredging the gas production pipeline blocked due to freezing comprises the following steps that a Christmas tree needle valve at the end of the gas production pipeline is dismantled; the end, away from the generator body, of the steam delivery pipe stretches into the gas production pipeline and is close to the portion blocked due to freezing; the steam generator is started, high-temperature steam generated by the steam generator reaches the portion blocked due to freezing through the steam delivery pipe, so that dredging is conducted through heating. According to the device and method for dredging the gas production pipeline blocked due to freezing, the portion, blocked due to freezing, of the gas production pipeline is heated within a short range by means of the high-temperature steam generated by the steam generator, so that the portion blocked due to freezing is unfrozen, in this way, the gas production pipeline can be dredged rapidly and effectively, and it is guaranteed that natural gas can be delivered smoothly in the gas production pipeline.

Description

technical field [0001] The invention relates to the technical field of natural gas exploitation, in particular, to equipment and methods for dredging freezing and blocking of gas production pipelines. Background technique [0002] In the process of natural gas extraction, due to the moisture and impurities in the natural gas, in the gas production pipeline between the wellhead of the gas well and the gas gathering station, the buried depth does not reach below the permafrost layer and the low-lying part of the pipeline, etc., in the low-temperature environment in winter In the process, hydrates will be formed to block the pipeline, which will affect pipeline transportation and natural gas extraction. The following three methods are usually used: venting at the wellhead to remove plugging, and repeatedly charging and venting when it is invalid; venting and removing plugging in the gas gathering station. Repeated pressure filling and emptying; if the blockage is close to the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/027
CPCB08B9/027B08B2209/027
Inventor 杨玉林陈丽荣
Owner 杨玉林
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