CN101509354B - External hanging drilling slot for platform - Google Patents
External hanging drilling slot for platform Download PDFInfo
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- CN101509354B CN101509354B CN2009100811316A CN200910081131A CN101509354B CN 101509354 B CN101509354 B CN 101509354B CN 2009100811316 A CN2009100811316 A CN 2009100811316A CN 200910081131 A CN200910081131 A CN 200910081131A CN 101509354 B CN101509354 B CN 101509354B
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Abstract
The invention relates to an external well slot of an ocean platform, comprising an external well slot body, two support frames, and two direction peg support frames; the two support frames are fixed at the upper part of the external well slot body and are provided with direction peg sleeves at the free ends; the two direction peg support frames are fixed on the ocean platform at positions matched with the support frames and are respectively provided with direction pegs matched with the direction peg sleeves at the free ends; and the direction pegs are sheathed in the direction peg sleeves. The external well slot of ocean platform is used for increasing the existing ocean platform output, expanding deck area, and avoiding underwater cutting and welding in constructing process. The external well slot of ocean platform has simple structure, greatly raised installation reliability and reduced cost.
Description
Technical field
The present invention relates to a kind of well slot, particularly relate to a kind of external hanging drilling slot for platform.
Background technology
The exploitation of offshore oilfield be investment high, have a big risk and energy industry frontier that new and high technology is intensive.At present, there is more than 6500 production of hydrocarbons facility in the whole world in the operation of the marine site of 53 countries.These Offshore Units are that the world has created great riches.Along with riseing of oil price, the exploitation of marginal oil field has just had special meaning, and this further requires the expansion of active service platform feature and the transformation of support active service platform, deeper excavates the potential of platform.Be generally 20 years the projected life of the fixed platform of using at present, but because the needs of field produces, most platforms still continue to be on active service after reaching projected life.Along with the increase of the platform operation time limit, will face underproduction problem, need on platform, set up producing well for remedying the production capacity deficiency, and the reservation well slot deficiency of a lot of old platforms can't satisfy the requirement that new brill is adjusted well.
Summary of the invention
The purpose of this invention is to provide and a kind ofly both can enlarge platform space, can avoid the welding under water of installation process again, and structure, the rigidity of platform itself not had the external hanging drilling slot that is used for the ocean platform secondary development of too much influence.
For achieving the above object, the present invention takes following technical scheme: a kind of external hanging drilling slot for platform, and it comprises the external hanging drilling slot main body; Two bracing frames that are fixed on described external hanging drilling slot main body top, its free-end is respectively equipped with the direction peg sleeve pipe; Two direction peg supports that are fixed on position on the ocean platform and support frame as described above coupling, its free-end is respectively equipped with the direction peg with direction peg sleeve pipe coupling; Described direction peg is set in the described direction peg sleeve pipe.
Described external hanging drilling slot for platform, wherein, the described direction peg support that is fixed on the ocean platform is fixedlyed connected with ocean platform by welding and/or connection clamp.
Described external hanging drilling slot for platform, wherein, the port of described direction peg sleeve pipe is horn-like.
Described external hanging drilling slot for platform wherein, is provided with mud mat in the bottom of described external hanging drilling slot main body.
Described external hanging drilling slot for platform, wherein, the section of described direction peg support is a triangle.
Described external hanging drilling slot for platform wherein, connects with crossbeam between described two bracing frames.
Described external hanging drilling slot for platform wherein, connects with crossbeam between described two direction peg supports.
External hanging drilling slot for platform provided by the invention is owing to take above technical scheme, and it has the following advantages: 1, do not take original Platform Deck space, can solve the relatively more crowded problem in Platform Deck space.2, only more than the water surface, have and be connected, avoided the difficulty of cutting and welding under water with former ocean platform well slot, make install more convenient quick.3, used accurate docking technique, the port of direction peg sleeve pipe adopts horn shape, enlarged sheathed area, reduced the precision requirement in the sheathed process, and the design height difference of both sides direction peg, with the sheathed process of direction peg sleeve pipe in can dock one by one both sides, further reduced installation difficulty.4, be provided with the Connection Card minor structure under water and be connected, make that external hanging drilling slot and former ocean platform are easy to connect with former ocean platform.5, mud mat is bigger than conventional design, makes it more stable when new construction is installed.6, can on the basis of original ocean platform well slot, provide more pithead positions, solve the problem that increases platform output.
Description of drawings
Fig. 1 is the structural representation of external hanging drilling slot for platform.
Fig. 2 is the cross sectional view of external hanging drilling slot for platform 4 meters leveling courses waterborne.
Fig. 3 is external hanging drilling slot for platform 3 meters leveling course cross sectional view under water.
Fig. 4 is the bracing frame on external hanging drilling slot for platform main body top and the structural representation of direction peg sleeve pipe.
Fig. 5 is two the direction peg supports on the ocean platform and the structural representation of direction peg.
Wherein, two direction peg height differences.
1, external hanging drilling slot main body 2, bracing frame 3, direction peg sleeve pipe 4, direction peg support 5, direction peg 6, connection clamp 7, ocean platform 8, mud mat
The specific embodiment
Now contrast accompanying drawing, describe the specific embodiment of external hanging drilling slot of the present invention in detail.
Embodiment one, at the design of the external hanging drilling slot of Suizhong 36-1 platform
Shown in Fig. 1-5, the present invention includes an external hanging drilling slot main body 1, the external hanging drilling slot body height is 38100mm; The free-end that is fixed with 2, two bracing frames of two leg-of-mutton bracing frames on the top of external hanging drilling slot main body 1 is welded with a columnar direction peg sleeve pipe 3 respectively; Be provided with two direction peg supports 4 with these two corresponding positions of bracing frame on ocean platform, this support also is a triangle, availablely is fixed on the ocean platform with connecting clamp 6, also can directly be weldingly fixed on the ocean platform; Described connection clamp 6 is two semicircular ring shapes, available bolton; Free-end at two direction peg supports 4 is welded with two direction pegs 5 respectively, in order to reduce the installation difficulty of external hanging drilling slot, two direction pegs is designed to different height, is respectively 7154mm and 7654mm (as shown in Figure 5); Direction peg 5 can be set in the described direction peg sleeve pipe 3, point-to-point socket in the installation process, the lower port of direction peg sleeve pipe 3 is designed to a bell mouth shape, the horn-like port diameter of direction peg sleeve pipe 3 is 2500mm, to further reduce the technical difficulty that external hanging drilling slot is installed much larger than the diameter 1067mm (as shown in Figure 4) of direction peg 6.
Direction peg support that is provided with on the ocean platform and ocean platform main body have two place's tie points, connected mode can be and connects clamp or welding, because marine stormy waves is bigger, so the tie point near on plane off sea adopts the connection clamp usually, with the complicated technology of avoiding the water surface and welding under water, and owing to connect the job costs height of the technology of clamp than welding, so tie point far away adopts welding procedure usually on plane off sea.
Be provided with a mud mat 8 in the lower end of external hanging drilling slot for platform main body, its effect is to prevent that the sedimentation of external hanging drilling slot main body from going into mud, guarantees the stability when external hanging drilling slot is installed simultaneously.
On the external hanging drilling slot for platform main body, all connect (as Fig. 2, shown in Figure 3) between two bracing frames 2 and between two direction peg supports 4 with crossbeam.
When the present invention uses, at first, the direction peg support is used the connection clamp under water, employing welding waterborne is fastened on the ocean platform, make direction peg be in position, then, adopt 900 tons of crane barges lifting external hanging drilling slot main bodys perpendicular to ocean platform, the direction peg sleeve pipe of external hanging drilling slot main body being set in successively on two direction pegs of ocean platform by the height order within the horn mouth scope, is welded after the leveling.
The present invention includes but be not limited to embodiment described above.
Claims (7)
1. external hanging drilling slot for platform, it is characterized in that: it comprises external hanging drilling slot main body (1); Two bracing frames (2) that are fixed on described external hanging drilling slot main body (1) top, its free-end is respectively equipped with direction peg sleeve pipe (3); Two direction peg supports (4) that are fixed on position on the ocean platform (7) and support frame as described above (2) coupling, its free-end is respectively equipped with the direction peg (5) with direction peg sleeve pipe (3) coupling; Described direction peg (5) is set in the described direction peg sleeve pipe (3).
2. external hanging drilling slot for platform as claimed in claim 1 is characterized in that: the described direction peg support (4) that is fixed on the ocean platform (7) is fixedlyed connected with ocean platform (7) by welding and/or connection clamp (6).
3. external hanging drilling slot for platform as claimed in claim 2 is characterized in that: the port of described direction peg sleeve pipe (3) is horn-like.
4. external hanging drilling slot for platform as claimed in claim 3 is characterized in that: be provided with mud mat (8) in the bottom of described external hanging drilling slot main body (1).
5. external hanging drilling slot for platform as claimed in claim 4 is characterized in that: the section of described direction peg support (4) is a triangle.
6. external hanging drilling slot for platform as claimed in claim 5 is characterized in that: connect with crossbeam between described two bracing frames (2).
7. external hanging drilling slot for platform as claimed in claim 6 is characterized in that: connect with crossbeam between described two direction peg supports (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100811316A CN101509354B (en) | 2009-04-02 | 2009-04-02 | External hanging drilling slot for platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100811316A CN101509354B (en) | 2009-04-02 | 2009-04-02 | External hanging drilling slot for platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101509354A CN101509354A (en) | 2009-08-19 |
| CN101509354B true CN101509354B (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100811316A Active CN101509354B (en) | 2009-04-02 | 2009-04-02 | External hanging drilling slot for platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN101509354B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855082A (en) * | 2021-02-26 | 2021-05-28 | 中海油能源发展装备技术有限公司 | Novel well head piece structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171027B1 (en) * | 1997-08-29 | 2001-01-09 | Marine Structure Consultants (Msc) B.V. | Cantilevered jack-up platform |
| US6926097B1 (en) * | 2002-03-06 | 2005-08-09 | Michael E. Blake | Jack up workover rig with removable workover floor unit |
| CN201406991Y (en) * | 2009-04-02 | 2010-02-17 | 中国海洋石油总公司 | Add-on well slot of offshore platform |
-
2009
- 2009-04-02 CN CN2009100811316A patent/CN101509354B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171027B1 (en) * | 1997-08-29 | 2001-01-09 | Marine Structure Consultants (Msc) B.V. | Cantilevered jack-up platform |
| US6926097B1 (en) * | 2002-03-06 | 2005-08-09 | Michael E. Blake | Jack up workover rig with removable workover floor unit |
| CN201406991Y (en) * | 2009-04-02 | 2010-02-17 | 中国海洋石油总公司 | Add-on well slot of offshore platform |
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| Publication number | Publication date |
|---|---|
| CN101509354A (en) | 2009-08-19 |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |