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A semi-submersible drilling platform in polar ice area

A drilling platform and semi-submersible technology, which is applied in the direction of special-purpose ships, ship construction, anchoring arrangements, etc., can solve the problems of not being able to resist ice loads, etc., and achieve the effect of strong sea area adaptability

Active Publication Date: 2022-03-25
深洋海工技术(深圳)有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to propose a semi-submersible drilling platform in the polar ice region, aiming at the problem that the existing drilling platform does not have the ability to resist the ice load and can only operate in the summer ice-free season. New semi-submersible drilling platform under Arctic sea ice load

Method used

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  • A semi-submersible drilling platform in polar ice area
  • A semi-submersible drilling platform in polar ice area
  • A semi-submersible drilling platform in polar ice area

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Embodiment 1

[0041] This embodiment discloses a semi-submersible drilling platform in the polar ice area, its structure is as follows figure 1 and figure 2 shown. The main structure of the semi-submersible drilling platform in the polar ice area includes a deck 1 and a lower floating body. The lower floating body includes two buoys 2 arranged in parallel and six columns arranged between the deck 1 and the buoys 2. 1 is connected to buoy 2.

[0042] Two buoys 2 are arranged in parallel, and three uprights are arranged on each buoy 2, and the uprights are divided into a vertical section 3 and an inclined section 4 from bottom to top, and the upper inclined section 4 is inclined toward the center of the platform. The vertical section and the inclined section of the column are integrally formed. The inclined section 4 at the bow and stern of the platform is bidirectionally inclined, that is, in the coordinate system with the bottom of the vertical section 3 as the origin, the inclined sect...

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Abstract

The invention provides a semi-submersible drilling platform in the polar ice area. The main structure of the platform includes a deck and a lower floating body. The lower floating body includes two buoys arranged in parallel and a plurality of columns arranged between the deck and the buoys. The columns are divided into two parts from bottom to top. The vertical section and the inclined section, the inclined section is inclined to the center of the platform; in the coordinate system with the bottom of the vertical section as the origin, the inclined section is inclined to the center of the platform in both XZ and YZ planes; anchors are set outside the columns at the bow and stern Chain and anchor chain anti-icing device, the anchor chain anti-icing device is a steel plate welded on the outer surface of the inclined section; the top of the anchor chain is fixed in the windlass on the deck, and the middle part passes through the gap between the steel plate and the inclined section; An anti-icing structure for the riser to protect the lowering operation of the drilling riser or blowout preventer is installed at the square waterline, and the two ends of the anti-icing structure of the riser are fixed on the oppositely arranged columns. The platform of the invention is a novel semi-submersible drilling platform capable of resisting the load of arctic sea ice.

Description

technical field [0001] The invention relates to drilling platform technology, in particular to a semi-submersible drilling platform in polar ice areas that can carry out drilling operations in arctic sea areas with ice. Background technique [0002] With the reserve replacement rate of conventional oil and gas resources decreasing and global energy consumption increasing, it is urgent to find new oil and gas reserves to meet global oil and gas demand. According to statistics, the undeveloped Arctic marine oil and gas resources account for about 30% of the world's remaining unexploited oil and gas resources. The development of Arctic marine oil and gas resources will be an important means to solve future resource shortages. [0003] At present, offshore oil and gas exploration and development activities in the Arctic are still rare, mainly due to the lack of engineering equipment that can operate in Arctic seas with ice. As far as drilling operations are concerned, conventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B35/44B63B21/50B63B21/20
CPCB63B35/4413B63B21/50B63B21/20
Inventor 屈衍黄志明陈东昌腾瑶刘大辉张大刚陈勇军梁稷罗岚
Owner 深洋海工技术(深圳)有限公司
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