CN201895761U - Semi-submersible platform used for offshore drilling - Google Patents
Semi-submersible platform used for offshore drilling Download PDFInfo
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- CN201895761U CN201895761U CN2010206322082U CN201020632208U CN201895761U CN 201895761 U CN201895761 U CN 201895761U CN 2010206322082 U CN2010206322082 U CN 2010206322082U CN 201020632208 U CN201020632208 U CN 201020632208U CN 201895761 U CN201895761 U CN 201895761U
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Abstract
The utility model relates to a semi-submersible platform used for offshore drilling, which comprises a square main deck and four columns arranged on the lower surface of the main deck, wherein two columns are positioned on the front side and the other two are positioned on the rear side, the two columns on the front or the rear side are distributed on the left side and the right side, a first floating bridge is connected below the two columns on the front side, a second floating bridge is connected below the two columns on the rear side, a first support tube structure is arranged between the two columns on the left side, and a second support tube structure is arranged between the two columns on the right side. The semi-submersible platform has the advantages that the semi-submersible platform used for offshore drilling has a simple structure, is convenient for installation and increases the work efficiency.
Description
Technical field:
The utility model relates to a kind of exploitation of offshore oil and gas device, particularly a kind of semisubmersible platform that is used for marine drilling.
Background technology:
Along with the more and more countries that reduces day by day of land oil reserves begins sight has been placed in the exploitation of marine oil, the market demand of offshore oil drilling platform also can get more and more.General drilling platform is made up of topside (being platform deck) and basic design, and topside generally is made of spread out frame or column of levels platform deck and interlayer, and complicated integral structure installs also cumbersomely, and installation effectiveness is lower.
Summary of the invention:
The purpose of this utility model is in order to overcome above deficiency, and a kind of simple in structure, easy for installation, semisubmersible platform that is used for marine drilling of increasing work efficiency is provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of semisubmersible platform that is used for marine drilling, comprise the square main deck, the lower surface of main deck is provided with four cylinders, wherein two cylinders place the front portion, two cylinders place the rear portion in addition, place about placing the front portion or placing two cylinders at rear portion, place two anterior cylinder belows to be connected with a pontoon bridge, place two cylinder belows at rear portion also to be connected with a pontoon bridge, place between the cylinder that is provided with before and after two of left side and be provided with the stay tube structure, place between the cylinder that is provided with before and after two of right side and also be provided with the stay tube structure.
Further improvement of the utility model is: the main deck center is provided with through hole.
The utility model compared with prior art has the following advantages: upper hull partly is main deck, lower hull section is two pontoon bridges and four cylinders, each pontoon bridge is provided with two cylinders, main deck is overall the construction, the overall lifting in the depressed place, not only lower laid down cost has also improved the speed of building, and has improved work efficiency.
Description of drawings:
Fig. 1 is the structural representation of semisubmersible platform;
Number in the figure: 1-main deck, 2-pontoon bridge, 3-cylinder, 4-stay tube structure, 5-through hole.
The specific embodiment:
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment, and this embodiment only is used to explain the utility model, does not constitute the qualification to the utility model protection domain.
The utility model is used for a kind of specific embodiment of the semisubmersible platform of marine drilling, the semi-submersible drilling unit structure roughly is divided into four zones: 1) promenade deck (mainly comprising main deck 1, residential development and a helicopter platform): it will carry the required nearly all equipment of this drilling platform work, also have two cranes and be arranged in both sides.2) pontoon bridge 2 parts: it will provide the platform required most of buoyancy that floats, its inside by some each in length and breadth bulkhead separate, with water tightness and the intensity that guarantees its structure.Also be furnished with six electric propulsion devices that are used for dynamic positioning on 2 li on pontoon bridge.3) cylinder 3 parts: from stressed angle, the effect of cylinder 3 is to act on all loading transfer on the promenade deck to pontoon bridge 2, and its inside is provided with a lot of vertical stiffeners, shelf plate and each watertight or non-watertight flat or the like and guarantees its stability of structure.4) the stay tube structure 4: the effect of stay tube structure is that promenade deck, pontoon bridge 2 and cylinder 3 threes are unified into a space steel frame structure, and the out-of-balance force that load such as stormy waves produce is carried out actv. distributes.What this drilling platform adopted is the horizontal brace pipe, it not only is subjected to bigger tension and compression effect when operation, also to bear very big flexure stress, for fear of pipe node place stress concentration, except the welding quality that guarantees this place, shaft orientation reinforcing rib also will be arranged in its inside, strengthens its resistance to bending.The structure of semisubmersible platform is composed as follows: comprise square main deck 1, main deck 1 center is provided with through hole 5, the lower surface of main deck 1 is provided with four cylinders 3, wherein two cylinders 3 place the front portion, two cylinders 3 place the rear portion in addition, place the front portion or place two cylinders about 3 at rear portion to place, place two anterior cylinder 3 belows to be connected with a pontoon bridge 2, place two cylinder 3 belows at rear portion also to be connected with a pontoon bridge 2, place between the cylinder 3 that is provided with before and after two of left side and be provided with stay tube structure 4, place between the cylinder 3 that is provided with before and after two of right side and also be provided with stay tube structure 4.
The pontoon bridge 2 control semisubmersible platform sinkings degree of depth under water, inject ballast water during drilling operation in the pontoon bridge, the semisubmersible platform major part is submerged in below the water surface, main deck 1 is in the water safety height, water plane area is little, wave effect is little, good stability, endurance is strong, operating depth is big, during the end of job, extracts the ballast water in the pontoon bridge 2 out, semisubmersible platform rises, and is floating to the water surface.This semisubmersible platform does not have from the boat ability, carries out the position adjustment by 6 thruster that are installed on two pontoon bridges 2.This semisubmersible platform has adopted the dynamic positioning technology, and accuracy of positioning is in 1～3 meter radius.The main structure of semisubmersible platform all adopts high strength steel, and the design service life of the keystone configuration of this semisubmersible platform is longer.Main deck 1 is overall the construction, the overall lifting depressed place in, and not only lower laid down cost has also improved the speed of construction, has improved work efficiency.
Claims (2)
1. semisubmersible platform that is used for marine drilling, it is characterized in that: comprise square main deck (1), the lower surface of described main deck (1) is provided with four cylinders (3), wherein two described cylinders (3) place the front portion, two described cylinders (3) place the rear portion in addition, place about placing the front portion or placing two described cylinders (3) at rear portion, place anterior two described cylinders (3) below to be connected with a pontoon bridge (2), place two described cylinders (3) below at rear portion also to be connected with a pontoon bridge (2), place between the cylinder (3) that is provided with before and after two of left side and be provided with stay tube structure (4), place between the cylinder (3) that is provided with before and after two of right side and also be provided with stay tube structure (4).
2. according to the right 1 described semisubmersible platform that is used for marine drilling, it is characterized in that: described main deck (1) center is provided with through hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206322082U CN201895761U (en) | 2010-11-29 | 2010-11-29 | Semi-submersible platform used for offshore drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206322082U CN201895761U (en) | 2010-11-29 | 2010-11-29 | Semi-submersible platform used for offshore drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201895761U true CN201895761U (en) | 2011-07-13 |
Family
ID=44253676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206322082U Expired - Fee Related CN201895761U (en) | 2010-11-29 | 2010-11-29 | Semi-submersible platform used for offshore drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201895761U (en) |
-
2010
- 2010-11-29 CN CN2010206322082U patent/CN201895761U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20111129 |