Sealing device for sea pipe leak plugging pipe clamp and sea pipe leak plugging equipment

Abstract

The invention discloses a sealing device and a sea pipe plugging equipment for a sea pipe plugging pipe clip. components, two sets of radial seal assemblies respectively arranged at opposite ends of the blockage area, two pistons, and a drive mechanism connecting the two pistons; the radial seal assembly is located between the end of the blockage area and the piston; the drive mechanism drives the two The two pistons move in opposite directions to extrude the radial sealing assembly, driving the radial sealing assembly to hug and seal on the sea pipe. The sealing device of the present invention has a high degree of automation, simple operation, safety and reliability; the installation and maintenance process can be operated by divers or ROVs, so it can be used for plugging pipes in shallow waters within 300 meters, and can also be used for 300 meters The leak-stopping pipe clips for deep-water marine pipelines with a water depth of more than one meter effectively solve the problem that the leak-stopping pipe clips in the deep-water field cannot achieve rapid and effective sealing.

Description

technical field [0001] The invention relates to the technical field of sea pipe maintenance, in particular to a sea pipe plugging sealing device and sea pipe plugging equipment. Background technique [0002] In recent years, the number of deep-water marine pipelines has been increasing. Due to the long-term design and construction of marine pipelines, marine environment, pipeline corrosion, and changeable media, accidents of deep-water marine pipeline leakage have become more and more frequent. This sudden leakage of deep-water sea pipelines poses a huge threat to oil and gas field production and the marine environment. Once the sea pipeline is damaged, it will cause great losses to the operation of deepwater oil and gas fields. [0003] In order to reduce huge economic losses such as marine environmental pollution and crude oil production shutdown, it is particularly important to repair damaged pipelines safely, quickly and reliably. However, since the maintenance of deep...

AI Technical Summary

Problems solved by technology

The traditional way of underwater construction is difficult, the work efficiency is extremely low, and the practicability is low. The sealing strip is affected by the underwater high pressure and corrosive environment, and the seal is prone to failure.

After installation, it is easy to have risks such as the sealing does not meet the requirements and the sealing test fails

Once a pipeline leaks in a deep-water oil and gas field, it will cause serious marine environmental pollution and huge economic losses. It is urgent to study the emergency plugging and sealing of marine pipelines

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