Pipeline ring hollow cleaning assembly

A technology for cleaning components and annulus, which is applied in the direction of cleaning hollow objects, cleaning methods and tools, chemical instruments and methods, etc. It can solve the problems of no sealing function, lack of annulus cleaning equipment, and inconvenient maintenance of pipelines, etc., so as to achieve simple operation , Simple structure, easy installation
CN1891361AInactive Publication Date: 2007-01-10CHINA NAT OFFSHORE OIL CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2007-01-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A pipe clearing component includes a mashing tool and a clearing out tool, in which, the mashing tool is composed of a multi-ridge cutter head and a handle and the clearing out tool includes toothed harrow and a handle, which smashes fillers firstly by the mashing tool then uses the clearing out tool to dig out the fillers.
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Description

technical field

[0001] The invention relates to a pipeline annulus cleaning tool, in particular to a pipeline annulus cleaning assembly for cleaning fillers in the annulus. Background technique

[0002] Pipeline transportation is an important mode of transportation, especially the transportation of oil and natural gas. With the continuous expansion of energy demand, the role of pipeline transportation has become increasingly prominent. In pipeline technology, pipeline plugging is an essential technology after an accident or maintenance in pipeline transportation.

[0003] In the current maintenance operation method, it is very common to cut off the damaged part and replace it with a new pipeline when the subsea pipeline is repaired. If the pipeline is damaged so badly that it cannot be supplied and transported normally, it needs to be shut down for maintenance. At this time, the maintenance process is carried out in the dry cabin, so the cabin must be filled with a certai...

Claims

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