CN204754801U - Underwater drilling marine riser connects - Google Patents
Underwater drilling marine riser connects Download PDFInfo
- Publication number
- CN204754801U CN204754801U CN201520470680.3U CN201520470680U CN204754801U CN 204754801 U CN204754801 U CN 204754801U CN 201520470680 U CN201520470680 U CN 201520470680U CN 204754801 U CN204754801 U CN 204754801U
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- Prior art keywords
- joint
- connecting tube
- inner connecting
- limited step
- underwater drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract 2
- 238000009864 tensile test Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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Abstract
The utility model provides an underwater drilling marine riser connects, connects including first joint, second joint and interior takeover, and first joint and second connect adoption flange formula structure, and first joint connects the butt joint with the second is in the same place, and the first joint and the second joint outside are equipped with limit pipe connector mouth and bolt interface, and interior takeover cartridge is in first joint and second joint butt joint department inside, and the external diameter of interior takeover is identical with first joint and second joint internal diameter. It adopts the production domesticization material to replace the imported material, and strength of material and relevant requirement accord with external equal product requirement completely and has significantly reduced material cost and purchase cycle to reduce product cost, connecting and adopting the design of flange formula, the dependable performance through projects such as extensive design analysis, crooked test, tensile testing, internal pressure and functional aassessments, satisfies the deep water condition completely and uses. Adopt 6 group's locking bolts, its precompression is on specified connection pressure, and this design can prolong marine riser and connect fatigue life, can realize on -the -spot quick replacement.
Description
Technical field
The utility model discloses a kind of pipe fitting joint, and particularly a kind of underwater drilling riser joints, belongs to marine drilling mechanical field.
Background technology
Offshore Drilling Riser is the visual plant that offshore oil is produced, it be one from marine drilling platform (or drill ship) towards the liquid conducting pipes of subsea blow out preventer (Blow-outPreventer, be called for short BOP) device.The Main Function of Offshore Drilling Riser is used to isolate extraneous seawater, for circulation of drilling fluid, install under water BOP, support various control pipeline (mainly comprise throttling and kill line, drilling fluid make up line, hydraulic power transmission pipeline etc.) etc., and play the guide effect from rig floor to subsea wellhead installations of drilling rod, drilling tool, wherein, drilling riser union is as the linkage between every root marine riser, and its effect seems still for important.
At present, worldwide Offshore Drilling Riser joint technique all monopolize by the specialized company of the developed countries such as Europe, the United States, China is in space state in the application aspect of Offshore Drilling Riser always.Conventional Offshore Drilling Riser joint design is complicated, and cost is higher.
Summary of the invention
For the shortcoming that the above-mentioned Offshore Drilling Riser joint cost of the prior art mentioned is higher, the utility model provides a kind of new underwater drilling riser joints, it adopts special structure, flanged fitting is adopted to coordinate inner connecting tube structure, not only can meet the requirement such as intensity and waterproof, cost control can also be made minimum.
The technical scheme that the utility model solves the employing of its technical problem is: a kind of underwater drilling riser joints, joint comprises the first joint, the second joint and inner connecting tube, first joint and the second joint adopt flange-type structure, first joint and the second joint are docking together, limit interface tube and bolt interface is provided with outside first joint and the second joint, it is inner that inner connecting tube is inserted into the first joint and the second joint joint, and the external diameter of inner connecting tube and the first joint and the second joint internal diameter match.
The technical scheme that the utility model solves the employing of its technical problem further comprises:
Described inner connecting tube and be matched in clearance between the first joint and the second joint, inner connecting tube corresponds to the first joint and offers the first seal groove, inner connecting tube corresponds to the second joint and offer the second seal groove.
The first described seal groove is provided with two, and two the first seal grooves be arranged in parallel.
The second described seal groove is provided with two, and two the second seal grooves be arranged in parallel.
Described limit interface tube and bolt interface interval are arranged.
The first described joint and the second joint are fixedly installed togather by set bolt pair.
The first described joint inside is provided with the first limited step, and on inner connecting tube, correspondence position is provided with the 3rd limited step; Second joint inside is provided with the second limited step, and on inner connecting tube, correspondence position is provided with the 4th limited step.
The first described joint inside is provided with the 5th limited step, and the 5th limited step is offered position and corresponded to inner connecting tube bottom position place; Second joint inside is also provided with the 6th limited step, and the 6th limited step is offered position and corresponded to inner connecting tube bottom position place.
Described inner connecting tube offers oilhole.
Correspond to oilhole position in the second described joint and be provided with oil-way.
The beneficial effects of the utility model are: the utility model adopts production domesticization material to replace imported material, and the strength of materials and related request meet external equivalents completely and require and greatly reduce Master Cost and procurement cycle, and reduce product cost; The utility model joint adopts flange form design, dependable performance, by projects such as design analysis, crooked test, extension test, internal pressure and functional assessments widely, meets deep water conditions completely and uses.The utility model adopts 6 groups of lock bolts, and its precompression is on specified Bonding pressure, and this design can extend riser joints fatigue life, can realize on-the-spot quick-replaceable.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the utility model assembled state perspective view.
Fig. 2 is the utility model decomposing state structural representation.
Fig. 3 is another visual angle decomposing state structural representation of the utility model.
Fig. 4 is that the utility model faces structural representation.
Fig. 5 is the A-A cross-sectional view of Fig. 4.
Fig. 6 is the utility model decomposing state structural representation.
Fig. 7 is the B-B cross-sectional view of Fig. 6.
In figure, 1-first joint, 2-second joint, 3-inner connecting tube, 4-limit interface tube, 5-set bolt, 6-hold-down nut, 7-first sealing ring, 8-second sealing ring, 9-first seal groove, 10-second seal groove, 11-oilhole, 12-first limited step, 13-second limited step, 14-the 3rd limited step, 15-the 4th limited step, 16-the 5th limited step, 17-the 6th limited step, 18-oil-way.
Detailed description of the invention
The present embodiment is the utility model preferred embodiment, and other its principles all are identical with the present embodiment or approximate with basic structure, all within the utility model protection domain.
Please refer to accompanying drawing 1 to accompanying drawing 7, the utility model mainly comprises the first joint 1, second joint 2 and inner connecting tube 3, first joint 1 and the second joint 2 adopt flange-type structure, and the first joint 1 and the second joint 2 are docking together, and inner connecting tube 3 is inserted into the first joint 1 and the second joint 2 joint is inner.In the present embodiment, limit interface tube 4 and bolt interface is provided with outside first joint 1 and the second joint 2, limit interface tube 4 and bolt interface interval are arranged, namely a bolt interface is provided with in the middle of two limit interface tubes 4, a limit interface tube 4 is provided with in the middle of two bolt interfaces, limit interface tube 4 is for connecting limit pipe, bolt interface is for installing set bolt pair, in the present embodiment, first joint 1 and the second joint 2 are fixedly installed togather by set bolt pair, set bolt pair comprises set bolt 5 and hold-down nut 6, set bolt 5 and hold-down nut 6 penetrate in bolt interface from both sides respectively, realize installing.In the present embodiment, be provided with 6 groups of set bolts secondary, its precompression is on specified Bonding pressure, and this design can extend riser joints fatigue life, can realize on-the-spot quick-replaceable.
In the present embodiment, the external diameter of inner connecting tube 3 and the first joint 1 and the second joint 2 internal diameter match, in the present embodiment, inner connecting tube 3 and be matched in clearance between the first joint 1 and the second joint 2, it is cannelure that inner connecting tube 3 offers the first seal groove 9, first seal groove 9 corresponding to the first joint 1 place, in the present embodiment, first seal groove 9 is provided with two, and two the first seal grooves 9 be arranged in parallel; It is cannelure that inner connecting tube 3 offers the second seal groove 10, second seal groove 10 corresponding to the second joint 2 place, and in the present embodiment, the second seal groove 10 is provided with two, and two the second seal grooves 10 be arranged in parallel.In the present embodiment, inner at the first joint 1, be provided with the first limited step 12, on inner connecting tube 3, correspondence position is provided with the 3rd limited step 14, during installation, the first limited step 12 and the 3rd limited step 14 cooperatively interact, and can limit the insertion depth of inner connecting tube 3 in the first joint 1, first joint 1 inside is also provided with the 5th limited step the 16, five limited step 16 and offers position corresponding to the setting of inner connecting tube 3 bottom position; In the present embodiment, inner at the second joint 2, be provided with the second limited step 13, on inner connecting tube 3, correspondence position is provided with the 4th limited step 15, during installation, the second limited step 13 and the 4th limited step 15 cooperatively interact, and can limit the insertion depth of inner connecting tube 3 in the second joint 2, second joint 2 inside is also provided with the 6th limited step the 17, six limited step 17 and offers position corresponding to the setting of inner connecting tube 3 bottom position.In the present embodiment, inner connecting tube 3 offers oilhole 11, oilhole 11 is provided with two, two oilholes 11 are symmetrical arranged, during concrete enforcement, oilhole 11 also can evenly be offered one or more, in disassembly process, lubrication oil can be injected by oilhole 11, make dismounting more smooth and easy, in the present embodiment, in the second joint 2, correspond to oilhole 11 position, be provided with oil-way 18, lubrication oil can be made to flow along oil-way 18.
(1) the utility model is a kind of by the investigation to external drilling riser union, in conjunction with China's actual conditions, develops the drilling riser union of a set of production domesticization, breaks external monopolization.
(2) research of the utility model by material, the calculating to mechanical model design, and the sunykatuib analysis to failure conditions, grasp the Development Techniques of Deep Water Drilling Riser.
(3) design of China's deepwater drilling equipment, research and development, manufacture, maintenance and detectability is improved by the utility model.
The utility model adopts production domesticization material to replace imported material, and the strength of materials and related request meet external equivalents completely and require and greatly reduce Master Cost and procurement cycle, and reduce product cost; The utility model joint adopts flange form design, dependable performance, by projects such as design analysis, crooked test, extension test, internal pressure and functional assessments widely, meets deep water conditions completely and uses.The utility model adopts 6 groups of lock bolts, and its precompression is on specified Bonding pressure, and this design can extend riser joints fatigue life, can realize on-the-spot quick-replaceable.
Claims (10)
1. a underwater drilling riser joints, it is characterized in that: described joint comprises the first joint, the second joint and inner connecting tube, first joint and the second joint adopt flange-type structure, first joint and the second joint are docking together, limit interface tube and bolt interface is provided with outside first joint and the second joint, it is inner that inner connecting tube is inserted into the first joint and the second joint joint, and the external diameter of inner connecting tube and the first joint and the second joint internal diameter match.
2. underwater drilling riser joints according to claim 1, it is characterized in that: described inner connecting tube and between the first joint and the second joint for matched in clearance, inner connecting tube corresponds to the first joint and offer the first seal groove, inner connecting tube corresponds to the second joint and offer the second seal groove.
3. underwater drilling riser joints according to claim 2, is characterized in that: the first described seal groove is provided with two, and two the first seal grooves be arranged in parallel.
4. underwater drilling riser joints according to claim 2, is characterized in that: the second described seal groove is provided with two, and two the second seal grooves be arranged in parallel.
5. underwater drilling riser joints as claimed in any of claims 1 to 4, is characterized in that: described limit interface tube and bolt interface interval are arranged.
6. underwater drilling riser joints as claimed in any of claims 1 to 4, is characterized in that: the first described joint and the second joint are fixedly installed togather by set bolt pair.
7. underwater drilling riser joints as claimed in any of claims 1 to 4, is characterized in that: the first described joint inside is provided with the first limited step, and on inner connecting tube, correspondence position is provided with the 3rd limited step; Second joint inside is provided with the second limited step, and on inner connecting tube, correspondence position is provided with the 4th limited step.
8. underwater drilling riser joints as claimed in any of claims 1 to 4, is characterized in that: the first described joint inside is provided with the 5th limited step, and the 5th limited step is offered position and corresponded to inner connecting tube bottom position place; Second joint inside is also provided with the 6th limited step, and the 6th limited step is offered position and corresponded to inner connecting tube bottom position place.
9. underwater drilling riser joints as claimed in any of claims 1 to 4, is characterized in that: described inner connecting tube offers oilhole.
10. underwater drilling riser joints according to claim 9, is characterized in that: correspond to oilhole position in the second described joint and be provided with oil-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470680.3U CN204754801U (en) | 2015-07-03 | 2015-07-03 | Underwater drilling marine riser connects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470680.3U CN204754801U (en) | 2015-07-03 | 2015-07-03 | Underwater drilling marine riser connects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204754801U true CN204754801U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520470680.3U Active CN204754801U (en) | 2015-07-03 | 2015-07-03 | Underwater drilling marine riser connects |
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| Country | Link |
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| CN (1) | CN204754801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968610A (en) * | 2017-04-26 | 2017-07-21 | 中国石油大学(华东) | A kind of Offshore Drilling Riser that itself can be monitored is single |
| CN113914788A (en) * | 2020-07-07 | 2022-01-11 | 江苏永维海工装备有限公司 | Deepwater drilling riser pipe and production method thereof |
-
2015
- 2015-07-03 CN CN201520470680.3U patent/CN204754801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968610A (en) * | 2017-04-26 | 2017-07-21 | 中国石油大学(华东) | A kind of Offshore Drilling Riser that itself can be monitored is single |
| CN113914788A (en) * | 2020-07-07 | 2022-01-11 | 江苏永维海工装备有限公司 | Deepwater drilling riser pipe and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 mailbox 4705, 25 Chaoyangmen North Street, Dongcheng District, Beijing Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Energy development equipment technology Co., Ltd of CNOOC Address before: 100010 mailbox 4705, 25 Chaoyangmen North Street, Dongcheng District, Beijing Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Energy development equipment technology Co., Ltd of CNOOC |