A packer device for grouting jacket leg and its installation method

Abstract

The invention discloses a packer device for grouting a jacket leg and an installation method thereof. It belongs to the technical field of offshore platform jacket installation. It includes equipment such as jacket legs, jacket piles, upper water-proof seal components, positioning guide blocks, spring isolation components and bottom isolation components. In the present invention, the upper water-proof seal assembly is placed on the packer to effectively block seawater from entering the jacket pile; the positioning guide block is placed in the middle of the packer and introduced into the jacket leg, which is convenient for placing the jacket leg during grouting. In the position where the force is balanced; the spring packer is used, and the elastic force of the spring can be used for efficient sealing; the bottom packer is installed at the lower part of the packer, which can not only prevent the lower seawater from entering the jacket pile, but also prevent the first pile Under working conditions, the jacket legs are held up while being in contact with the seabed to form a secondary seal; the invention has reasonable layout, reduces consumables, effectively improves isolation efficiency, and has good research significance and research prospects.

Description

technical field [0001] The invention belongs to the technical field of offshore platform jacket installation, and relates to a packer device used for grouting jacket legs and an installation method thereof. Background technique [0002] The installation of the jacket of the offshore platform is very important in offshore engineering, especially when the casing is injected into the concrete during the installation of the pile legs, it is very important to isolate the seawater in the ocean and ensure the concentration of the injected concrete. The research and development of the jacket leg grouting packer is very meaningful. [0003] The Chinese invention with the application number of CN201910491359.6 discloses a tower packer for sealing the cement slurry of the jacket, the tower packer is located between the steel pile and the inner sleeve and the inner sleeve is sleeved to the inside of the steel pile During the process, the outer surface of the sealing ring with the large...

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Problems solved by technology

[0006] The packers of the above patents belong to small instrument packers, and there are few mentions in the prior art of packers for large projects such as jacket platform installation, so this device is designed as a packer for jacket leg grouting The device and its installation method have certain practical engineering significance in the field of ocean engineering

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