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Building process for deep sea spar platform

A floating platform and deep-sea technology, which is applied to ship construction, ship parts, ships, etc., can solve the problems of difficult control of construction accuracy, heavy construction and hoisting work of the general section of the hard cabin ring, so as to improve the utilization rate of the slideway and reduce the The effect of hoisting times and reasonable force

Inactive Publication Date: 2012-07-18
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology

Due to the above-mentioned construction method, the number of segments of the hard cabin ring is large, and the construction and hoisting work of the hard cabin ring is particularly heavy, and the construction process is also easily affected by environmental (wind) loads. Therefore, the construction accuracy is difficult to control

Method used

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  • Building process for deep sea spar platform
  • Building process for deep sea spar platform
  • Building process for deep sea spar platform

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Embodiment Construction

[0056] Such as figure 1 As shown, the main structure of the floating platform 16 includes three parts: a hard cabin 1, a truss 2, and a soft cabin 3; wherein, the hard cabin 1 is composed of several ring segments connected to form a whole, and the truss 2 is installed on the hard cabin 1. One end of the soft cabin 3 is installed on one end of the truss 2.

[0057] Such as figure 2 As shown, the lifting device is mainly composed of an array of lifting towers 6 corresponding to each other, a lifting beam 7 installed between every two groups of lifting towers 6 corresponding to each other, and a lifting beam 7 installed on the lifting beam 7 for lifting the hard cabin ring. Segmented lifting brackets 8 are formed, and a fixed wire rope 5 is connected between the top of each group of lifting towers 6 to the ground, and tension jacks 4 are installed on the platform at the top of each group of lifting towers 6 . Present embodiment: the lifting tower 6 is four groups, also can ins...

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Abstract

A building process for a deep sea spar platform includes the steps: firstly, respectively building an upper hard tank ring half section and a lower hard tank ring half section on a slide way; secondly, mounting lifting devices on the periphery of the upper ring half section; thirdly, continuously lifting the upper hard tank ring half section to a set position; fourthly, folding and butting the lower hard tank ring half section and the upper hard tank ring half section into an integral ring section; fifthly, leading the integral ring section to slide out of a mounting device; sixthly, repeating the step two to the step five until a plurality of integral ring sections are built; seventhly, folding and connecting the integral ring sections into an integral hard tank; eighthly, respectively mounting a truss and a soft tank on slide shoes positioned on sliders; and ninthly, completing building of a spar platform body by means of butting and folding. By the aid of the building process, building precision of the platform is improved, construction period is shortened, a building procedure is little susceptible to environment (wind) load effect, a requirement on site space is lowered, and important technical support is provided for deep-sea resource development.

Description

technical field [0001] The invention relates to a platform construction method, in particular to a construction process for a deep-sea floating platform suitable for deep-sea oil and gas development, and belongs to the field of marine engineering. Background technique [0002] The floating (Spar) platform can well meet the production and storage of oil in waters with a depth of 500m to 3000m, and has gradually become one of the most attractive and potential platform forms, especially the second-generation truss floating ( Truss Spar) platform is the mainstream of ocean engineering today. [0003] At present, the difficulty in the construction of the second-generation Truss Spar platform lies in the construction of the hard cabin. The construction of the hard cabin is usually divided into a plurality of ring segments to be constructed separately, and then the docking between the ring segments is carried out. There are mainly two modes for the construction of the hard cabin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/06
Inventor 宋峥嵘李淑民李林刘建军徐善辉董文乙曲延涛卫旭敏胡博生刘全刚尹宝瑞
Owner CHINA NAT OFFSHORE OIL CORP
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