CN110748305A - Deepwater marine riser with protective shell - Google Patents
Deepwater marine riser with protective shell Download PDFInfo
- Publication number
- CN110748305A CN110748305A CN201910852452.5A CN201910852452A CN110748305A CN 110748305 A CN110748305 A CN 110748305A CN 201910852452 A CN201910852452 A CN 201910852452A CN 110748305 A CN110748305 A CN 110748305A
- Authority
- CN
- China
- Prior art keywords
- flange
- groove
- riser
- flanges
- deepwater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 18
- 239000011324 bead Substances 0.000 claims abstract description 24
- 230000003139 buffering effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
- E21B17/085—Riser connections
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Revetment (AREA)
Abstract
The invention discloses a deepwater marine riser with a protective shell, which comprises a casing, flanges, circular buffer beads and a corrugated pipe, wherein the flanges are arranged at two ends of the casing, bolt holes and grooves are arranged on the surfaces of the flanges at intervals, the buffer beads are arranged in the grooves between an upper flange and a lower flange, the area of each groove is larger than the maximum sectional area of the buffer bead, the depth of each groove is 1/4-1/3 of the diameter of the buffer bead, and the corrugated pipe is arranged on the outer sides of the upper flange and the lower flange. The movable protective cover is arranged on the outer side of the deepwater marine riser, so that the marine riser can be protected, and the service life of the marine riser is prolonged.
Description
Technical Field
The invention belongs to the technical field of marine risers, and particularly relates to a deepwater marine riser with a protective shell.
Background
An offshore riser is a casing from the bottom of an offshore drilling platform to the shallow seabed, and is mainly used for isolating seawater, leading in a drilling tool and the casing and forming a channel for slurry circulation. The upper fluid director and the lower blowout preventer are connected to form an important underwater drilling device, and in the offshore oil exploration process, a drilling riser is an important and weak link in the whole drilling system and is an important factor influencing the offshore drilling safety, so that the pressure resistance and the corrosion resistance of the riser need to be considered in a key manner, in addition, the transverse impact of ocean currents and the impact of certain foreign objects can damage the riser, and researchers are required to develop a protection structure to protect the riser.
Disclosure of Invention
In order to solve the problems, the invention discloses a deepwater riser with a protective shell, wherein a movable protective cover is arranged on the outer side of the deepwater riser to protect the riser and prolong the service life of the riser.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the deepwater marine riser with the protective shell comprises a casing, flanges, circular buffer beads and a corrugated pipe, wherein the flanges are arranged at two ends of the casing, bolt holes and grooves are formed in the surfaces of the flanges at intervals, the buffer beads are arranged in the grooves between an upper flange and a lower flange, the area of each groove is larger than the maximum sectional area of each buffer bead, the depth of each groove is 1/4-1/3 of the diameter of each buffer bead, and the corrugated pipe is arranged on the outer sides of the upper flange and the lower flange.
As a modification of the invention, the flange side surface is protruded outwards to form an auxiliary area, and the auxiliary area is arranged on an extension line from the flange center to the groove center.
As a refinement of the present invention, the sleeve is a STB33 seamless steel tube.
As an improvement of the invention, the flange is a flat welding flange.
As a refinement of the invention, the cross section of the groove is circular.
As an improvement of the invention, the diameter of the bottom of the groove is more than or equal to 2 times of the diameter of the buffer bead.
The invention has the beneficial effects that:
according to the deepwater riser with the protective shell, the movable protective cover is arranged on the outer side of the deepwater riser, so that the riser can be protected, and the service life of the riser is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a flange according to the present invention.
Fig. 3 is a cross-sectional view of a groove according to the present invention.
List of reference numerals:
1. sleeve pipe, 2, flange, 3, buffering pearl, 4, recess, 5, bolt hole, 6, auxiliary area, 7, lock nut, 8, bellows.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figures, the deepwater riser with the protective shell comprises a casing 1, flanges 2 and circular buffer beads 3, wherein the flanges 2 are arranged at two ends of the casing 1, bolt holes 5 and grooves 4 are arranged on the surfaces of the flanges 2 at intervals, the buffer beads 3 are arranged in the grooves 4 between an upper flange and a lower flange 2, the area of the grooves 4 is larger than the maximum sectional area of the buffer beads 3, the depth of the grooves 4 is 1/4-1/3 of the diameter of the buffer beads 3, and corrugated pipes 8 are arranged on the outer sides of the upper flange and the lower flange (the corrugated pipes 8 are hot-welded on the outer sides of the casing up and down to ensure water tightness and can slide left and right).
During the use with the riser from the intraductal seabed that stretches into of sleeve, that is to say to the riser, the sleeve pipe has played the effect of protection casing, sleeve pipe 1 has adopted STB33 seamless steel pipe, the rigidity is good, compressive property is high, it is corrosion-resistant, long service life, on the other hand, set up buffering pearl 3 in the recess 4 between two upper and lower flanges 2, under the impact of the horizontal ocean current in seabed, buffering pearl 3 rolls and removes in the recess, it can the rock left and right sides and unload the power to drive the sleeve pipe, reduce the impact force to the riser body, the protection riser.
The buffering beads 3 are arranged in the grooves 4 between the upper flange and the lower flange 2, the two flanges are connected through bolts and nuts (note that the buffering beads 3 can move or rotate between the two flanges, namely, the distance between the two flanges is fixed through locking nuts to ensure that the buffering beads can freely run), and the outer sides of the flanges are provided with sealed corrugated pipes to form a protective cover for protecting the marine riser.
The side surface of the flange 2 protrudes outwards to form an auxiliary area 6, the auxiliary area 6 is arranged on an extension line from the center of the flange to the center of the groove 4, the auxiliary area is used for increasing the area of the flange plane and ensuring that the groove is large enough, the diameter of the bottom of the groove 4 is more than or equal to 2 times of the diameter of the buffer bead 3, and the buffer bead can freely run in the groove; the cross section of the groove 4 is circular, the inner side surface of the groove is arc-shaped, and the buffer beads cannot be flushed out of the groove.
The flange 2 is a flat welding flange.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (6)
1. The utility model provides a deep water riser with protective housing which characterized in that: the novel corrugated pipe is characterized by comprising a sleeve, flanges, circular buffering beads and corrugated pipes, wherein the flanges are arranged at two ends of the sleeve, bolt holes and grooves are formed in the flange faces at intervals, the buffering beads are arranged in the grooves between the upper flange and the lower flange, the area of each groove is larger than the maximum sectional area of each buffering bead, the depth of each groove is 1/4-1/3 of the diameter of each buffering bead, and the corrugated pipes are arranged on the outer sides of the upper flange and the lower flange.
2. The deepwater riser with protective casing according to claim 1, wherein: the side face of the flange protrudes outwards to form an auxiliary area, and the auxiliary area is arranged on an extension line from the center of the flange to the center of the groove.
3. The deepwater riser with protective casing according to claim 1, wherein: the sleeve is a STB33 seamless steel tube.
4. The deepwater riser with protective casing according to claim 1, wherein: the flange is a flat welding flange.
5. The deepwater riser with protective casing according to claim 1, wherein: the cross section of the groove is circular.
6. The deepwater riser with protective casing of claim 5, wherein: the diameter of the bottom of the groove is more than or equal to 2 times of the diameter of the buffer bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852452.5A CN110748305B (en) | 2019-09-09 | 2019-09-09 | Deepwater marine riser with protective shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910852452.5A CN110748305B (en) | 2019-09-09 | 2019-09-09 | Deepwater marine riser with protective shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110748305A true CN110748305A (en) | 2020-02-04 |
| CN110748305B CN110748305B (en) | 2021-11-19 |
Family
ID=69276264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910852452.5A Active CN110748305B (en) | 2019-09-09 | 2019-09-09 | Deepwater marine riser with protective shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110748305B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898297A (en) * | 2021-09-16 | 2022-01-07 | 建湖县永维阀门钻件有限公司 | Subsea production riser protector |
| CN113931582A (en) * | 2021-09-16 | 2022-01-14 | 建湖县永维阀门钻件有限公司 | Riser joint protection device |
| CN113958267A (en) * | 2021-09-16 | 2022-01-21 | 建湖县永维阀门钻件有限公司 | Improved drilling riser assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201354590Y (en) * | 2008-07-31 | 2009-12-02 | 宝鸡石油机械有限责任公司 | Marine riser device for ocean deepwater drilling |
| CN202510918U (en) * | 2012-04-27 | 2012-10-31 | 西南石油大学 | W-shaped device for inhibiting vortex induced vibration of marine riser |
| CN103453276A (en) * | 2013-09-13 | 2013-12-18 | 西南石油大学 | Vortex-induced vibration suppression device with tail rotor rotatable separating disc and method |
| CN203515367U (en) * | 2013-10-23 | 2014-04-02 | 西南石油大学 | Rotatable shuttle fairing type marine riser vortex-induced vibration suppression device |
| CN105134101A (en) * | 2015-08-21 | 2015-12-09 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
| CN107060660A (en) * | 2016-12-22 | 2017-08-18 | 中国石油天然气集团公司 | Deepwater drilling pipe |
| CN208380521U (en) * | 2018-06-25 | 2019-01-15 | 建湖县永维阀门钻件有限公司 | A kind of shoe of Offshore Drilling Riser |
| CN209026364U (en) * | 2018-10-29 | 2019-06-25 | 甘肃银光聚银化工有限公司 | A kind of pipe flange protective device |
-
2019
- 2019-09-09 CN CN201910852452.5A patent/CN110748305B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201354590Y (en) * | 2008-07-31 | 2009-12-02 | 宝鸡石油机械有限责任公司 | Marine riser device for ocean deepwater drilling |
| CN202510918U (en) * | 2012-04-27 | 2012-10-31 | 西南石油大学 | W-shaped device for inhibiting vortex induced vibration of marine riser |
| CN103453276A (en) * | 2013-09-13 | 2013-12-18 | 西南石油大学 | Vortex-induced vibration suppression device with tail rotor rotatable separating disc and method |
| CN203515367U (en) * | 2013-10-23 | 2014-04-02 | 西南石油大学 | Rotatable shuttle fairing type marine riser vortex-induced vibration suppression device |
| CN105134101A (en) * | 2015-08-21 | 2015-12-09 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
| CN107060660A (en) * | 2016-12-22 | 2017-08-18 | 中国石油天然气集团公司 | Deepwater drilling pipe |
| CN208380521U (en) * | 2018-06-25 | 2019-01-15 | 建湖县永维阀门钻件有限公司 | A kind of shoe of Offshore Drilling Riser |
| CN209026364U (en) * | 2018-10-29 | 2019-06-25 | 甘肃银光聚银化工有限公司 | A kind of pipe flange protective device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898297A (en) * | 2021-09-16 | 2022-01-07 | 建湖县永维阀门钻件有限公司 | Subsea production riser protector |
| CN113931582A (en) * | 2021-09-16 | 2022-01-14 | 建湖县永维阀门钻件有限公司 | Riser joint protection device |
| CN113958267A (en) * | 2021-09-16 | 2022-01-21 | 建湖县永维阀门钻件有限公司 | Improved drilling riser assembly |
| CN113958267B (en) * | 2021-09-16 | 2024-06-14 | 建湖县永维阀门钻件有限公司 | Improved drilling riser assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110748305B (en) | 2021-11-19 |
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