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Waste crude oil pipe harmless treatment method

A technology of harmless treatment and crude oil pipeline, which is applied in the direction of chemical instruments and methods, cleaning methods and utensils, solid waste removal, etc., can solve the problems of poor cleaning efficiency and high energy consumption, and achieve high cleaning efficiency and low energy consumption , prevent the effect of secondary pollution

Active Publication Date: 2017-12-05
中石化石油工程技术服务有限公司 +1
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a harmless treatment method for abandoned crude oil pipelines, so as to solve the problems of high energy consumption and poor cleaning efficiency in existing cleaning methods

Method used

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  • Waste crude oil pipe harmless treatment method
  • Waste crude oil pipe harmless treatment method

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Embodiment Construction

[0022] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] The specific embodiment of the waste crude oil pipeline harmless treatment method of the present invention, the process flow chart is as follows figure 2 Shown, adopt the processing system of above-mentioned embodiment, comprise the following steps:

[0024] 1) Insert the degreasing ball group into the abandoned crude oil pipeline. The degreasing ball group includes two plate-type three-skin bowl pigs arranged along the length of the pipeline, and there is a water injector between adjacent degreasing pigs. Inject air into the abandoned crude oil pipeline to push the degreasing ball group forward along the pipeline to remove the remaining crude oil in the pipeline;

[0025] 2) Implant the wax removal ball group into the abandoned crude oil pipeline. The wax removal ball group includes at least two wax removal pigs arranged along the length of the...

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Abstract

The invention relates to a waste crude oil pipe harmless treatment method. The treatment method comprises the steps that 1, oil removing ball sets are implanted into a waste crude oil pipe, the oil removing ball sets comprise two or more pipe cleaning machines for oil removal which are distributed in the length direction of the pipe at intervals, the portion between the adjacent pipe cleaning machines for oil removal is filled with water, then air is injected into the waste crude oil pipe to push the oil removing ball sets to move forward along the pipe, and crude oil preserved in the pipe is removed; 2, wax removing ball sets are implanted into the waste crude oil pipe, the wax removing ball sets comprise two or more pipe cleaning machines for wax removal which are distributed in the length direction of the pipe at intervals, the portion between the adjacent pipe cleaning machines for wax removal is filled with cleaning agent, then air is injected into the waste crude oil pipe to push the wax removing ball sets to move forward along the pipe, and attached wax and residue crude oil in the pipe are removed; 3, solidifiable slurry is injected into the waste crude oil pipe, and the waste pipe is filled through solidification. The waste crude oil pipe harmless treatment method is low in energy consumption and high in maneuverability and safety, and meets the safe harmless treatment requirements of the waste pipe.

Description

technical field [0001] The invention belongs to the field of harmless treatment of abandoned crude oil pipelines, and in particular relates to a method for harmless treatment of abandoned crude oil pipelines. Background technique [0002] Pipeline transportation is the most important transportation mode of petroleum. In recent years, with the continuous growth of human demand for petroleum, my country's petroleum transportation pipelines have achieved breakthrough development, but abandoned pipelines are also increasing year by year. When the pipeline reaches the end of its service life, or it is judged that the pipeline does not have the value of transporting oil and gas due to corrosion defect assessment, or it needs to be relocated due to planning adjustment, or the operation risk of the pipeline safety distance exceeds the acceptable range, the pipeline will be abandoned. At present, the overdue service and disposal of pipelines in my country has become a common problem,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/053B08B9/027B09B3/00B09B5/00
CPCB08B9/027B08B9/053B09B3/00B09B5/00
Inventor 陈自振钱惠杰张洪波赵涛张亚克李岩威张磊薛秀娟
Owner 中石化石油工程技术服务有限公司
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