A combined floating box type offshore platform launching device and offshore platform launching method

Abstract

The invention discloses a combined floating box type marine platform launching device, which comprises an upper platform and a lower platform, the upper platform is arranged on the lower platform, the lower platform is arranged underwater and the bottom of the lower platform is in contact with the bottom of the harbor basin; the lower platform On the upper platform, there are gaps opposite to the spud shoes of the offshore platform and equal in number; the upper platform includes several boxes arranged in sequence, and each box is placed on the lower platform, and some boxes The body is just installed in the gap of the lower platform, and the bottom of each box is equipped with a seabed valve for water intake and drainage. The invention also discloses a method for launching the offshore platform by using the launching device, the method includes designing and installing the upper and lower platforms and controlling the launching of the offshore platform. The invention greatly reduces the cost of launching, reduces the influence and risk of tidal wind waves on the launching process, shortens the launching period, and can better meet the launching requirements of all current functional offshore platforms.

Description

technical field [0001] The invention belongs to the technical field of marine engineering platform launching, and in particular relates to a combined floating box type marine engineering platform launching device and a marine engineering platform launching method. Background technique [0002] As the development of offshore oil and gas resources is further intensified, large-scale integrated platforms are gradually used for development in the sea. There are usually two ways to launch the existing offshore platforms. One is to use semi-submerged barge to enter the water. However, at present, the self-weight of offshore engineering platform projects is more than 6,000 tons, and there are very few floating cranes in the world that can meet the lifting capacity of this tonnage, and the lifting cost is extremely expensive. The launching of semi-submersible barges requires the use of semi-submersible barges. Due to the multiple influences of shipping schedules, costs and specific...

AI Technical Summary

Problems solved by technology

However, at present, the dead weight of offshore engineering platform projects is more than 6,000 tons, and there are very few floating cranes in the world that can meet the lifting capacity of this tonnage, and the lifting cost is extremely expensive

Semi-submersible barges are required for the launching of semi-submersible barges. Due to the multiple influences of shipping schedules, costs and specific diving areas, semi-submersible barges are difficult to meet the launching needs of multiple batches of offshore platforms.

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