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Offshore platform for after-drilling or production of hydrocarbons

An offshore platform and drilling technology, which is applied to special-purpose ships, equipment to reduce ship movement, and equipment to increase stability of ships, etc., can solve problems such as reduced efficiency, and achieve the effect of reducing the danger of serious consequences

Inactive Publication Date: 2009-04-08
SEMBCORP MARINE INTEGRATED YARD PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The efficiency of equipment in use today degrades above 2 to 4 degrees in either roll or pitch

Method used

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  • Offshore platform for after-drilling or production of hydrocarbons
  • Offshore platform for after-drilling or production of hydrocarbons
  • Offshore platform for after-drilling or production of hydrocarbons

Examples

Experimental program
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Embodiment Construction

[0027] Corresponding parts and elements are marked with the same reference numerals in the different figures.

[0028] 1 and 2 show a platform 1 comprising a semi-submersible platform body or shell 2 designed as a vertical cylinder with a flat bottom 3 . The platform floats in the water 4 . The lower half of the cylinder has a peripheral groove or slot-shaped notch 5 which extends across the entire circumference of the cylinder. In the shown design, the groove-shaped recess 5 is substantially limited on its upper side by a horizontal side wall 6 and on its lower side by an annular body 7, the purpose of which is to obtain additional support for the platform. The damping effect of movement.

[0029] As shown in enlarged detail at A in FIG. 1 , the annular body 7 has outwardly converging upper and lower portions formed by annular plates 8 and 9 secured to the lower end of the cylindrical body 2 . On the outside of the plates 8 and 9 is substantially fixed a vertical annular p...

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PUM

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Abstract

Platform for drilling after or production of hydrocarbons at sea, consisting of a semi-submersible platform body (2) which supports drilling and / or production equipment on its upper surface. The platform body (2) is designed as a vertical mainly flat bottomed cylinder which is provided with at least one peripheral circular cut-out (5, 30, 35, 36) in the lower section of the cylinder since the centre of buoyancy for the submerged section of the platform (1) is positioned lower than the centre of gravity of the platform.

Description

technical field [0001] The present invention relates to an offshore platform for post-drilling or exploitation of hydrocarbons, which includes a semi-submersible platform, which supports drilling equipment and / or production equipment on its upper surface. Background technique [0002] So far there have been mainly two different types of units for post-drilling or production of hydrocarbons (oil or gas) by employing floating units, namely floating platforms or semi-submersible platforms. [0003] Floating platform based units are considered to be heavy in terms of static weight with respect to production equipment or drilling equipment, and storage capacity for oil, fuel, etc. is high. The disadvantage of this type of unit is that it is dependent on the direction of environmental forces such as wind, currents and waves. When environmental forces are applied to the floating platform, the forces and the movement of the floating platform are generally greater. In order to redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B35/44E02B17/00B63B9/06B63B1/04B63B39/00B63B39/10
CPCB63B35/4413B63B2001/044B63B1/042B63B2039/067B63B2039/105B63B39/00B63B39/10B63B1/041B63B35/44
Inventor 阿尔内·斯梅达尔科勒·塞弗森
Owner SEMBCORP MARINE INTEGRATED YARD PTE LTD
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