Harmless cleaning process of abandoned crude oil pipeline
A pipeline and crude oil technology, applied in the field of harmless cleaning technology, can solve the problems of long disposal time, complex properties, complex components, etc., and achieve the effect of eliminating pollution, completely dissolving, and ensuring cleaning effect
Active Publication Date: 2018-12-11
RICH HIGH TECH CO LTD
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Problems solved by technology
Due to the complex composition of the residues in the abandoned pipeline, and the long disposal time and complex nature, it is very difficult to clean the crude oil pipeline until it is free of oil, wax and dirt at one time
At present, compared with foreign countries, there are few researches and practices on pipeline waste in my country. A systematic and scientific pipeline waste treatment technology system has not yet been formed, and there is no standard specification for pipeline waste treatment. The research on pipeline waste treatment technology is basically in its infancy.
Method used
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Embodiment Construction
[0023] The cleaning process of the present invention will be described in more detail below in conjunction with the accompanying drawings.
[0024] Such as figure 1 As shown, the harmless cleaning process of the abandoned crude oil pipeline of the present invention comprises the following steps:
[0025] In the first step, in order to ensure the smooth progress of the cleaning work, it is first necessary to detect and locate the abandoned pipeline 1 . The construction machinery and tools should be in place two days before the start of construction, excavate the operation pit at both ends of the cleaning pipeline, and level the site in the operation pit.
[0026] Install signal receivers 2 on the ground close to both ends of the abandoned pipeline to ensure that the passage of the pig is detected during cleaning;
[0027] The two ends of the abandoned crude oil pipeline are respectively connected to the pigging tube 3 and the ball receiving tube 4, and the tube 3 is connected...
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The invention discloses a harmless cleaning process for abandoned crude oil pipelines, which consists of four sets of pigs and a special cleaning agent liquid column formed between the four sets of pigs, a compressed nitrogen gas column and a clean water liquid column The pigging train moves slowly in the pipeline to fully soak and thoroughly clean the residue adhering to the inner wall of the pipeline. The present invention adopts the physical and chemical combined cleaning method to clean the waste crude oil pipeline, which can remotely monitor and intelligently adjust the traveling speed of the pig, accurately determine the time for the cleaning liquid in the pipeline to dissolve the residue, and ensure the cleaning effect of the pipeline. The residues and cleaning waste liquid are collected separately without falling to the ground, which realizes the elimination of pollution from the source. The special cleaning agent can ensure that the solid residues in the abandoned crude oil pipeline are efficiently, quickly and completely dissolved. With clean water cleaning, the abandoned pipeline can be cleaned without wax, oil and dirt, and can show the effect of the original metal color.
Description
technical field [0001] The invention relates to a treatment technology for crude oil pipelines, in particular to a harmless cleaning process for abandoned crude oil pipelines. Background technique [0002] When the service life of the pipeline reaches the upper limit or the benefit of continuing to transport crude oil is far lower than the transportation cost and the pipeline has no other potential uses, the pipeline needs to be abandoned. Since the construction of the first crude oil pipeline in my country in 1958, the development of oil and gas pipelines has been changing with each passing day. 4 km. At present, due to the long running time and serious aging of many pipelines, accidents occur from time to time, and with the rapid development of China's economy, the environment through which the pipelines pass has also undergone tremendous changes, and some pipelines are gradually covered by living areas. Accidents will cause huge economic losses and have a greater social...
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IPC IPC(8): B08B9/055
CPCB08B9/0552
Inventor 徐兴斌刘素平张金立王洪涛徐昕张翰元刘吴博黄利峰申斌刚吴方杰
Owner RICH HIGH TECH CO LTD