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Rapid self-elevating offshore platform lifting system and control method thereof

A lifting system and offshore platform technology, applied in the field of fast self-elevating offshore platform lifting system and its control, can solve the problems of slow speed in the whole process, and achieve the effect of easy maintenance and replacement

Pending Publication Date: 2022-05-17
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above analysis, the embodiment of the present invention aims to provide a fast self-elevating offshore platform lifting system and its control method to solve the time cost of platform construction, recovery and transfer caused by the slow speed of the entire process of the existing lifting system high cost problem

Method used

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  • Rapid self-elevating offshore platform lifting system and control method thereof
  • Rapid self-elevating offshore platform lifting system and control method thereof
  • Rapid self-elevating offshore platform lifting system and control method thereof

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Embodiment 1

[0040] A specific embodiment of the present invention, such as Figure 1-Figure 4 As shown, a fast self-elevating offshore platform lifting system (hereinafter referred to as the lifting system) is disclosed, which includes pile legs 8 and a lifting mechanism. The interior is filled with phase-change gas, and the air pressure of the phase-change gas quickly expands and builds pressure to drive and push the pile insertion push rod 4 to drive the pile leg 8 into the mud for ballasting to realize the rapid lifting of the platform 13.

[0041] Compared with the prior art, the lifting system provided by this embodiment uses the air pressure of the phase-change gas to quickly expand and build up pressure to drive the pile insertion push rod to drive the pile legs into the mud and ballast to realize the rapid lifting of the platform. Due to the rapid build-up of the phase-change gas The process of pressing, pushing, ballasting and lifting is generally completed within a few minutes t...

Embodiment 2

[0054] Another specific embodiment of the present invention, such as Figure 1-Figure 4 As shown, a control method of a fast self-elevating offshore platform lifting system is disclosed, and the steps include:

[0055] Step S1: The pile legs 8 are lowered, and after they are put in place, the pile legs 8 and the platform 13 are locked, and the driving frame 5 and the pile legs 8 are locked.

[0056] After the platform 13 is towed to the designated operating position, the legs 8 drop to the seabed under the action of the lifting motor 7, during which the transmission frame 5 and the legs 8 are in an unlocked state.

[0057] It should be noted that during the hauling process of the platform 13, the legs 8 are lowered to the point where they do not touch the sea water, so as to lower the center of gravity of the entire platform 13 system and avoid the shaking of the legs 8 caused by the external force of sea water and waves during the hauling process. During the lowering process...

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Abstract

The invention relates to a rapid self-elevating offshore platform lifting system and a control method thereof, belongs to the technical field of self-elevating offshore platforms, and solves the problem that the time cost for building, recycling and transferring a platform is high due to the fact that the speed of the whole process of a lifting system in the prior art is low. The pile leg lifting device comprises a pile leg and a lifting mechanism, the lifting mechanism comprises a phase change power device and a pile inserting push rod, the phase change power device is filled with phase change gas, and the air pressure generated by rapid expansion and pressure building of the phase change gas drives and pushes the pile inserting push rod to drive the pile leg to enter mud for ballasting to achieve rapid lifting of a platform. The lifting device is high in lifting speed and efficiency.

Description

technical field [0001] The invention relates to the technical field of self-elevating offshore platforms, in particular to a fast self-elevating offshore platform lifting system and a control method thereof. Background technique [0002] As a high-tech, high-value-added special equipment for offshore oil and gas exploration and exploitation, the offshore drilling platform has the characteristics of large investment, high risk, strong professionalism, and many disciplines involved. It mainly includes bottom-mounted platforms and semi-submersible platforms. and jack-up platforms. [0003] Compared with other types of offshore platforms, jack-up offshore platforms have the advantages of strong adaptability to water depth, high working stability, and low investment and maintenance costs. Jack-up offshore platforms have become the most widely used drilling devices in offshore oil and gas exploration so far. [0004] The self-elevating offshore platform (main hull) completes the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/08
CPCE02B17/08Y02E10/727
Inventor 彭雪明时宗洋李子伟王超魏广威马力超薛立娟魏巍
Owner BEIJING MECHANICAL EQUIP INST
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