Moonpool, maritime device with same, and sliding device arranged on moonpool

Abstract

The invention discloses a moonpool, a maritime device with the same, and a sliding device arranged on the moonpool. Through respectively correspondingly forming second spaces on two side edges of thelength direction of a first space of a moonpool, width of the moonpool is increased on the position where the second space is formed, so that a maximum operation dip angle of a water-insulating casingpipe on the moonpool of the structure is increased. A swing region of the water-insulating casing pipe when the water-insulating casing pipe works normally is increased, and probability that the water-insulating casing pipe would strike the edge of the moonpool caused by storms when the water-insulating casing pipe swings is reduced, so that the water-insulating casing pipe can be adapt to requirement of a maritime device in adverse sea conditions. Occupation area of the second space is relatively low, and stability of the integrated structure of the maritime device is not influenced. The maritime device using the moonpool is arranged on the sliding device on the moonpool, and the maritime device also has the above advantages.

Description

technical field [0001] The invention relates to the field of ocean engineering equipment, in particular to a moon pool applied to the ocean engineering equipment, the ocean engineering equipment with the moon pool, and a sliding device arranged on the moon pool. Background technique [0002] With the sharp increase in demand for oil in production and life in modern society and the continuous development of offshore oil and gas resources, various types of offshore drilling ships and offshore drilling platforms have emerged. In order to realize oil field exploration and production in the ocean, it is necessary to configure various underwater equipment on marine engineering equipment or ships. The access to the sea of ​​engineering equipment or the main hull deck must be large enough to meet the needs of different equipment operations. Therefore, the common structural feature of this type of marine engineering structure is that a vertical through hole from the upper deck to th...

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Problems solved by technology

[0003] Conventional deep-sea offshore engineering equipment places the blowout preventer on the seabed, and the drilling ship or subsea wellhead is connected with a water-resistant casing. The moonpool opening of conventional offshore engineering equipment is rectangular. The maximum operating inclination of the casing is 5° or less. When the maximum operating inclination exceeds the maximum operating inclination, the steel wire rope or the components connected to it will collide with the moonpool opening, causing damage to the steel wire rope or other components or affecting the equipment. function, as shown in the accompanying drawings of the manual figure 1 shown

Some semi-submersible offshore equipment working in harsh sea conditions require the maximum inclination angle of the riser casing to exceed 5°. In this case, the moon pool with a conventional structure cannot meet the limit of the riser casing operating requirements

[0004] If the maximum inclination angle of the riser casing is increased by simply increasing the overall opening width, due to the limited space of the offshore equipment, it will lead to: on the one hand, the cost of the offshore equipment will be greatly increased; on the other hand, the fact that It may affect the overall strength of the platform; in short, the moon pool with the existing structure will increase the difficulty and cost of offshore equipment manufacturing

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