A double bottom layout method for a jack-up drilling platform

Abstract

The invention discloses an arrangement method for a double-layer bottom of a self-elevating type drilling platform. The double-layer bottom comprises a platform bottom plate, a mechanical deck and a platform peripheral plate. A first pile leg, a second pile leg and a third pile leg are arranged on a bow of the platform bottom plate, the port of the bow and the starboard of the bow respectively. Fifteen pre-pressing water loading tanks, six pre-pressing water loading-drilling water common cabins, two pre-pressing water loading-deck water draining common cabin, one pre-pressing water loading-buffering common cabin, two fresh water tanks, two fuel cabins, one drilling water cabin, one saline cabin, one base oil cabin, one cabin bottom water cabin, one dirty oil tank, two sea chests, one pipe tunnel and two pipe channels are further arranged on the platform bottom plate. Compared with the prior art, with the design, pipes and valves can be arranged in a dry hollow cabin in a concentrated mode, daily operation and maintenance are convenient, in addition, the purchasing and building cost of the pipes and the valves is easily reduced, and better profit space is created for platform builders.

Description

technical field [0001] The invention relates to the technical field of marine engineering equipment, in particular to a method for arranging the double bottom of a self-elevating drilling platform. Background technique [0002] Double bottom refers to the general designation of ship inner bottom plate, ship bottom plate and the skeleton and space between them. The design concept of the double bottom of the platform is inherited from the double bottom of the ship. The main purpose of the design of the double bottom is to prevent the sea water from entering the cabin in the event of collision or bottoming out, and the inner bottom is damaged. Ensure the safety of the platform, personnel and equipment, and increase the anti-sinkability of the platform. [0003] The double bottom of the platform is composed of bottom deck, machinery deck and peripheral walls, and the double bottom is divided into several functional compartments by longitudinal bulkhead and transverse bulkhead, ...

AI Technical Summary

Problems solved by technology

[0008] The biggest defect of the double bottom in the prior art is that the pipelines and valves in the double bottom are scattered and arranged, which is not conducive to daily operation; the pipeline is arranged in the liquid tank, and the wall thickness, cost and weight need to be increased in consideration of corrosion and other factors Increase; pipelines and valves are arranged in liquid compartments that are difficult for personnel to reach, remote control valves must be used, and maintenance is inconvenient; valves in the double bottom must be submerged, and the procurement cost increases

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