Anti-capsulation systems for semi-submersible platforms and semi-submersible platforms

Abstract

The invention discloses a semi-submerged platform and an anti-overturning system for the same. The anti-overturning system comprises a ballast pump system, an air compressing system, at least one first ballast compartment and at least one second ballast compartment, wherein the ballast pump system comprises a ballast water header pip, at least one ballast pump and a plurality of ballast water branch pipes; the air compressing system comprises a compressed air header pipe, at least one ballast air compressor and one or more compressed air branch pipes with compressed air valves; each first ballast compartment is communicated with outside air through a first vent pipe, is communicated with outside seawater through a first seawater introducing pipe with a seawater introducing valve, and is connected to the ballast water header pipe through the one or more ballast water branch pipes; and each second ballast compartment is communicated with the outside air through a second vent pipe with a vent valve, is communicated with the outside seawater through a second seawater introducing pipe with a seawater introducing valve, and is connected to the compressed air header pipe through the at least one compressed air header pipe. According to the anti-overturning system disclosed by the invention, anti-overturning torque can be supplied rapidly to keep a platform floating.

Description

technical field [0001] The invention relates to a semi-submersible platform, in particular to an anti-overturning system for the semi-submersible platform and a semi-submersible platform with the anti-overturning system. Background technique [0002] The semi-submersible platform plays an important role in offshore operations. It usually includes an upper hull and a lower hull. The lower hull includes two buoys. These two buoys are arranged below the upper hull along the left and starboard sides of the platform, and each buoy They are respectively connected to the bottom of the upper hull through two uprights, and a driving system of the platform can also be arranged on the lower hull. The semi-submersible platform may have large vertical and lateral tilting angles during operation, so a corresponding anti-overturning system is required to balance the overturning moment to maintain the basic floating state of the platform. For example, for large semi-submersible lifting pla...

AI Technical Summary

Problems solved by technology

[0003] An object of the present invention is to provide an anti-overturning system for a semi-submersible platform, to solve or at least improve one or more deficiencies in the above-mentioned prior art

[0004] Another object of the present invention is to provide a semi-submersible platform to solve or at least improve one or more deficiencies in the above-mentioned prior art

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