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Medium and deep water semi-submersible drilling platform

A drilling platform and semi-submersible technology, which is applied in the field of semi-submersible drilling platforms and floating offshore structures, can solve the problems of high resistance of drilling platforms, reduce operating costs, reduce fuel consumption, and improve heave performance Effect

Active Publication Date: 2018-09-11
CIMC OFFSHORE ENG INST +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a semi-submersible drilling platform in medium and deep water, which solves the problem of large resistance of the drilling platform in the prior art

Method used

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  • Medium and deep water semi-submersible drilling platform
  • Medium and deep water semi-submersible drilling platform
  • Medium and deep water semi-submersible drilling platform

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Embodiment Construction

[0057] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0058] The invention provides a semi-submersible drilling platform suitable for operation in middle and deep waters. The drilling platform can carry out oil and gas exploitation operations. The working water depth of this type of platform is about 80 meters to 1500 meters, and the variable load is about 5000 to 6000 tons. Preferably, the semi-submersible drilling platform provided by the present invention allows the seawater temperature range to be 0-32 degrees Celsius during operation, and the allowable ambient air temperature range to be minus 7-plus 35 ...

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Abstract

The invention provides a middle-depth-water semi-submersible type drilling platform which comprises two separated lower floating bodies, at least four stand columns vertically arranged on the two lower floating bodies, and a main ship body supported by the stand columns and of a square box structure. Each lower floating body comprises two fore and aft sections and one middle section, wherein the two fore and aft sections are connected to the two longitudinal ends of the middle section respectively, each fore and aft section is of a structure with the width gradually decreasing from the middle to the two ends in the longitudinal direction, the maximum-width position of each fore and aft section smoothly transits to the outer end through a hook face, a cambered surface is formed at the outer end of each fore and aft section, the maximum-width position of each fore and aft section is connected with the hook face of the middle section in a smooth transition mode, and the maximum width of the middle section is smaller than the maximum width of each fore and aft section. The stand columns are vertically arranged on the fore and aft sections of the lower floating bodies. The towing and self-propelling resistance of the drilling platform is reduced, fuel oil consumption is reduced, and operating cost is reduced. Furthermore, the heaving motion amplitude response operator of the platform can be reduced, and platform heaving performance is improved.

Description

technical field [0001] The present invention relates to the technical field of ocean engineering, and relates to a floating offshore structure, and more specifically, to a semi-submersible drilling platform suitable for operation in middle and deep waters. Background technique [0002] As we all know, oil resources are the power source of modern industry. With the increasingly scarce land oil resources, the exploration, development and utilization of offshore oil and gas resources have been developing rapidly in recent years, which has led to a strong demand for ocean engineering, especially as ocean engineering has grown from Shallow water is gradually moving towards medium and deep water. Medium and deep water marine engineering equipment such as semi-submersible drilling platform, semi-submersible marine living platform, semi-submersible marine lifting platform and other marine engineering equipment products are sought after by major shipyards in the world, and the competi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B35/44
Inventor 李磊罗伯特·拉格威森肖元张利华韩荣贵马格纳斯·恩格斯特拉特格·欧格曼贺昌海傅强刘富祥王军李峰滕瑶张工
Owner CIMC OFFSHORE ENG INST
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