CN101424176B - Cementing stopping ring seal structure between guide pile pipe of underwater basal disc and pile pipe sleeve - Google Patents
Cementing stopping ring seal structure between guide pile pipe of underwater basal disc and pile pipe sleeve Download PDFInfo
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- CN101424176B CN101424176B CN2007101767449A CN200710176744A CN101424176B CN 101424176 B CN101424176 B CN 101424176B CN 2007101767449 A CN2007101767449 A CN 2007101767449A CN 200710176744 A CN200710176744 A CN 200710176744A CN 101424176 B CN101424176 B CN 101424176B
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Abstract
The invention relates to a cementing baffle ring sealing structure between a guiding pile pipe and a pile pipe sleeve of a sea underwater drilling template, which aims to solve the problems that the prior sealing structure is not sealed tightly and is easy to leak, and a plastic plate is easy to deform in the process of casing off the guiding pile pipe to cause the sealing to be failed. The cementing baffle ring sealing structure between the guiding pile pipe and the pile pipe sleeve of the sea underwater drilling template comprises the pile pipe sleeve, the guiding pile pipe which is arranged in the pile pipe sleeve and coaxially arranged with the pile pipe sleeve, and a seal assembly. The seal assembly comprises an annular sealing plastic ring, an upper clamp plate, a lower clamp plate and locking bolts, wherein the lower clamp plate is welded on the outer wall of the guiding pile pipe, the upper clamp plate is connected above the lower clamp plate through fixing bolts, the sealing plastic ring is in a bowl shape, the middle part of the sealing plastic ring is arranged between the upper clamp plate and the lower clamp plate, and the outer edge of the sealing plastic ring is in interference fit with the inner wall of the pile pipe sleeve. The sealing structure has the advantages that the sealing structure has tight sealing and is not easy to leak.
Description
Technical field
The present invention relates to a kind of ocean underwater drilling basal disc the direction peg pipe and the stake pipe box between cementing stopping ring seal structure.
Background technology
Subsea template is a kind of equipment that the offshore oil drilling operation is used; Be positioned over the subsea wellheads place, mainly play the guide bur well tool, accept subsea equipment and under water blowout preventer set, carry out the preboring producing well, use the direction peg on the basal disc to carry out effects such as jacket butt joint location according to the well spacing of arranging on the subsea template.On basal disc, be typically provided with a plurality of pipe boxes, the stake pipe box is to be used for location and fixed guide stake, and direction peg is used for fixing seabed basal disc and opposing pipe frame usefulness, the impact force when bearing the jacket butt joint.
Usually, the stake external diameter of pipe of direction peg is 762mm, and stake pipe box internal diameter is 1078mm, and the gap of 158mm is arranged between basal disc stake pipe box and the stake pipe, in order to ensure the intensity of direction peg pipe, must fix with cement grouting between stake pipe and the stake pipe box.
The success or not of cement injection depends on whether the sealing between stake pipe and the stake pipe box is effective.In the prior art, be the flat lacquer disk(-sc) that adopts an annular to the sealing between stake pipe and the stake pipe box.Lacquer disk(-sc) is fixed on the stake pipe, and its outer rim contacts with the inwall of stake pipe box.Adopt this structure to seal, its shortcoming is poorly sealed reality, reveals easily, is lowered in the process at the direction peg pipe simultaneously, and the lacquer disk(-sc) easy deformation causes the sealing failure.
Summary of the invention
The technical problem that the present invention will solve is; To poorly sealed reality in the prior art; Cement paste leaks easily in filling process and the yielding problem that causes the sealing failure of sealing lacquer disk(-sc), and provide that a kind of airtight quality is high, cementing stopping ring seal structure between the subsea template direction peg pipe that is difficult for causing the sealing failure and a pipe box.
The technical solution adopted for the present invention to solve the technical problems is: propose cementing stopping ring seal structure between a kind of subsea template direction peg pipe and stake pipe box; Comprise a pipe box, in the stake pipe box with the direction peg pipe and the black box of the coaxial setting of stake pipe box; Said black box comprises: the train wheel bridge of sealed rubber ring, ring-type and the lower plate of ring-type, set bolt; Said lower plate cover is welded in direction peg pipe outer wall; Said train wheel bridge is connected by set bolt with lower plate, and said sealed rubber ring is bowl structure, the center is located between train wheel bridge and the lower plate, its outer rim with the stake pipe box the inwall interference fit.
In the cementing stopping ring seal structure, said bowl-shape sealed rubber ring is a rubber glue ring between subsea template direction peg pipe of the present invention and stake pipe box.
In the cementing stopping ring seal structure, the thickness of the outer rim of said glue ring is 20～35 millimeters between subsea template direction peg pipe of the present invention and stake pipe box.
In the cementing stopping ring seal structure, Shao's formula hardness of said glue ring is 50～55 degree between subsea template direction peg pipe of the present invention and stake pipe box.
Between subsea template direction peg pipe of the present invention and stake pipe box in the cementing stopping ring seal structure the outer wall of direction peg pipe be positioned at sealed rubber ring below be provided with several guiding gussets around the direction peg pipe, the guiding gusset play the guiding role and protects the black box effect.
Between subsea template direction peg pipe of the present invention and stake pipe box in the cementing stopping ring seal structure; The outer wall of direction peg pipe be positioned at sealed rubber ring above be provided with several guiding gussets around the direction peg pipe, the top of guiding gusset is seated in and plays stake pipe location on the pipe box horn mouth inclined-plane.
Cementing stopping ring seal structure is compared between the present invention and existing subsea template direction peg pipe and stake pipe box, has following advantage:
1, sealed rubber ring becomes bowl structure, and before putting into a pipe box, the diameter of its outer rim is greater than the diameter of a pipe box; After putting in the pipe box, outer rim is extruded, and forms interference fit with stake pipe box inwall; So that when above sealed rubber ring, injecting cement, can not reveal.
2, be provided with the guiding gusset in the above and below of sealed rubber ring, when sealed rubber ring moved in the stake pipe box with the direction peg pipe, the guiding gusset can effectively protect sealed rubber ring, prevented its distortion or was damaged.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of king-pile pipe box of the present invention and direction peg pipe.
Fig. 2 is the partial enlarged drawing at Figure 1A place.
Fig. 3 is the structural representation of sealed rubber ring among the present invention.
Fig. 4 is the partial enlarged drawing at Figure 1B place.
The specific embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4 show a more excellent embodiment of the present invention.
Underwater drilling basal disc specification in the present embodiment is 2X2, is designed with three direction peg pipes 20, sees also shown in Figure 1; Direction peg pipe 20 coaxial being arranged in the pipe box 10; Wherein the external diameter of direction peg pipe 20 is 762mm, and the internal diameter of stake pipe box 10 is 1078mm, and the gap of 158mm is arranged between stake pipe box and the stake pipe; In order to ensure the intensity of direction peg pipe 20, this gap must be filled with cement casting.As shown in Figure 2, be provided with cement baffle ring black box 30 in the bottom of fit at direction peg pipe 20 mutually with stake pipe box 10.As shown in Figure 3; Cementing stopping ring black box 30 comprises sealed rubber ring 31, lower plate 32, train wheel bridge 33 and the lock bolt 34 of annular; Wherein lower plate 32 covers are welded on the outside of direction peg pipe 20, and train wheel bridge 33 is positioned at the top of lower plate 32, through fastening bolt 34 clamped sealed glue rings 31.Sealed rubber ring 31 is bowl structure, adopts the thick rubber glue ring processing and manufacturing of 20mm to form, and Shao's formula hardness of sealed rubber ring 31 is 50～55 degree; The middle part of sealed rubber ring 31 is clamped by two clamping plate 32,33, and under the free state before being inserted in a pipe box 10, the external profile diameter D2 of sealed rubber ring 31 is slightly larger than the inside diameter D 1 of a pipe box 10; After direction peg pipe 20 is inserted in a pipe box; The outer rim of sealed rubber ring 31 is pressed to the center of a pipe box 10, shown in the dotted portion among Fig. 3, realizes the interference fit with stake pipe box 10 inwalls; After direction peg pipe 20 is in place, from the horn mouth injection cement of stake pipe box.
As shown in Figure 3, the diameter D3 of lower plate 32 is slightly less than the inside diameter D 1 of a pipe box 10, and when carrying out cementing, lower plate 32 bears most pressure, increases sealing effectiveness.
In addition, the weld seam of stake pipe box 10 inwalls is also handled through polishing, in stake pipe box 10, slides when moving down protruding weld seam damage sealed rubber ring with direction peg pipe 20 to prevent sealed rubber ring 31.
In order when being lowered to direction peg pipe 20, effectively cementing seal stopper ring assembly 30 to be protected, on the outer wall of direction peg pipe 20, be provided with two- layer guiding gusset 40,50 up and down; 40 designs of first floor guiding gusset are below cementing seal stopper ring assembly 30; Play guiding and 30 effects of protection cementing seal stopper ring assembly; Second layer guiding gusset 50 is arranged on the top of cementing seal stopper ring assembly 30, and by after being put into the position, the top of this layer guiding gusset 50 is seated on the horn mouth inclined-plane of a pipe box 10 at the direction peg pipe; As shown in Figure 4, the depth of setting of direction peg pipe 20 is positioned.When sealed rubber ring 31 moved down in the stake pipe box with direction peg pipe 20, guiding gusset 40,50 can effectively protect sealed rubber ring 31, prevented its distortion or was damaged and cause sealing failure.
Between subsea template direction peg pipe in the present embodiment and stake pipe box in the cementing stopping ring seal structure, because sealed rubber ring 31 is bowl structure, before putting into a pipe box 10; The diameter of its outer rim is greater than the diameter of a pipe box, put in the pipe box 10 after, outer rim is extruded; Form interference fit with stake pipe box 10 inwalls; And the strength support of lower plate 32 as sealed rubber ring arranged, when above sealed rubber ring 31, injecting cement, can not leak.
Claims (6)
1. cementing stopping ring seal structure between subsea template direction peg pipe and stake pipe box; Comprise a pipe box, in the stake pipe box with the direction peg pipe and the black box of the coaxial setting of stake pipe box; It is characterized in that: said black box comprises: the train wheel bridge of sealed rubber ring, ring-type and the lower plate of ring-type, set bolt; Said lower plate cover is welded in direction peg pipe outer wall; Said train wheel bridge is connected in lower plate top by set bolt, and said sealed rubber ring is bowl structure, and the center is located between train wheel bridge and the lower plate, the inwall interference fit of its outer rim and stake pipe box.
2. cementing stopping ring seal structure between subsea template direction peg pipe according to claim 1 and stake pipe box is characterized in that said bowl-shape sealed rubber ring is a rubber glue ring.
3. cementing stopping ring seal structure between subsea template direction peg pipe according to claim 1 and 2 and stake pipe box is characterized in that the thickness of the outer rim of said sealed rubber ring is 20～35 millimeters.
4. according to cementing stopping ring seal structure between each described subsea template direction peg pipe in the claim 1 to 2 and stake pipe box, it is characterized in that Shao's formula hardness of said sealed rubber ring is 50～55 degree.
5. cementing stopping ring seal structure between subsea template direction peg pipe according to claim 1 and stake pipe box is characterized in that, the outer wall of direction peg pipe be positioned at sealed rubber ring below be provided with several guiding gussets around the direction peg pipe.
6. cementing stopping ring seal structure between subsea template direction peg pipe according to claim 1 and stake pipe box is characterized in that, the outer wall of direction peg pipe be positioned at sealed rubber ring above be provided with several guiding gussets around the direction peg pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101767449A CN101424176B (en) | 2007-11-02 | 2007-11-02 | Cementing stopping ring seal structure between guide pile pipe of underwater basal disc and pile pipe sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101767449A CN101424176B (en) | 2007-11-02 | 2007-11-02 | Cementing stopping ring seal structure between guide pile pipe of underwater basal disc and pile pipe sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101424176A CN101424176A (en) | 2009-05-06 |
| CN101424176B true CN101424176B (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101767449A Active CN101424176B (en) | 2007-11-02 | 2007-11-02 | Cementing stopping ring seal structure between guide pile pipe of underwater basal disc and pile pipe sleeve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104831698B (en) * | 2014-02-11 | 2016-06-22 | 天津市海王星海上工程技术股份有限公司 | A kind of catch means being connected with basal disc suitable in spud leg |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363743A (en) * | 2002-01-25 | 2002-08-14 | 胜利油田胜利石油化工建设有限责任公司 | Method and apparatus for grouting with guide pipe on offshore platform |
| CN2578521Y (en) * | 2002-10-29 | 2003-10-08 | 南海西部石油合众近海建设公司 | Hanging well drilling basic disc of central well |
| GB2429990A (en) * | 2005-09-07 | 2007-03-14 | Keron Engineering Ltd | Drilling guide frame assembly |
| CN201100118Y (en) * | 2007-11-02 | 2008-08-13 | 中国海洋石油总公司 | Cement injection blocking ring sealing structure between under-water base tray guiding stake pipe and stake pipe cover |
-
2007
- 2007-11-02 CN CN2007101767449A patent/CN101424176B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363743A (en) * | 2002-01-25 | 2002-08-14 | 胜利油田胜利石油化工建设有限责任公司 | Method and apparatus for grouting with guide pipe on offshore platform |
| CN2578521Y (en) * | 2002-10-29 | 2003-10-08 | 南海西部石油合众近海建设公司 | Hanging well drilling basic disc of central well |
| GB2429990A (en) * | 2005-09-07 | 2007-03-14 | Keron Engineering Ltd | Drilling guide frame assembly |
| CN201100118Y (en) * | 2007-11-02 | 2008-08-13 | 中国海洋石油总公司 | Cement injection blocking ring sealing structure between under-water base tray guiding stake pipe and stake pipe cover |
Non-Patent Citations (1)
| Title |
|---|
| 侯金林.平湖油气田钻井基盘和井口回接辅助结构.《中国海上油气(工程)》.2000,第12卷(第2期),15-17,21. * |
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| CN101424176A (en) | 2009-05-06 |
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