Pipeline interior plugging tool

Abstract

The invention relates to a pipeline interior plugging tool used under the condition that petroleum and natural gas pipelines crack and are broken. The problem that the exteriors of cracking portions of the petroleum and natural gas pipelines are hard to plug is solved. According to the technical scheme, the upper end of a feeding-in connector and a feeding-in tubular column are in screwed connection, and the lower end of the feeding-in connector and the upper end of a center pipe are in screwed connection; the lower end of the center pipe and a sealing head are in screwed connection; the upperend of an anchoring shell and the lower end of a quick connector are in screwed connection, and the lower end of the anchoring shell and the upper end of an upper connecting barrel are in screwed connection; a magnetic anchor jaw is placed in a radial through hole of a stabilizing wing in the middle of an external circle of the anchoring shell; the upper end of a conical barrel and the lower endof an upper connecting barrel are in screwed connection, and the lower end of the conical barrel and the upper end of a lower connecting barrel are in screwed connection; and the lower portion of theexternal circle of the upper connecting barrel is sleeved with an upper sealing rubber barrel, and the upper portion of the external circle of the lower connecting barrel is sleeved with a lower sealing rubber barrel. According to the pipeline interior plugging tool, the broken portions are plugged from the interiors of the pipelines, the construction operation steps are simple, construction costis low, and speed is high; and the harm of pipeline leakage is effectively avoided, and production safety is maintained.

Description

technical field [0001] The invention relates to a pipe internal plugging tool used in the case of cracks and damages in oil and natural gas pipelines, in particular to the field of deep buried pipelines and other ruptured pipelines that cannot be constructed by external sealing. Background technique [0002] Oil and gas pipelines can transport oil or natural gas from mining sites or processing plants to urban gas distribution centers or industrial enterprise users. Oil and gas pipelines can realize the large-scale transportation of oil and natural gas. Especially with the continuous advancement and rapid development of my country's infrastructure construction, there are more and more pipeline projects like "West-to-East Gas Pipeline", and the construction of oil and gas pipelines will become more and more popular. . [0003] However, during the use of oil and gas pipelines, due to various reasons such as stratum movement, earthquakes, volcanic eruptions, and corrosion, oil a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a tool for internal sealing of pipelines in order to solve the problem of difficult external sealing of ruptured parts of oil and gas pipelines.

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