CN113898297A - Subsea production riser protector - Google Patents
Subsea production riser protector Download PDFInfo
- Publication number
- CN113898297A CN113898297A CN202111087674.6A CN202111087674A CN113898297A CN 113898297 A CN113898297 A CN 113898297A CN 202111087674 A CN202111087674 A CN 202111087674A CN 113898297 A CN113898297 A CN 113898297A
- Authority
- CN
- China
- Prior art keywords
- subsea production
- hose
- protection device
- production riser
- flanges
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 230000001012 protector Effects 0.000 title claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 17
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 238000005553 drilling Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a marine riser protection device for subsea production, which comprises a marine riser body, wherein at least one annular groove is formed in the surface of the marine riser body, a ring sleeve is arranged in the annular groove, a plurality of vertically arranged turbulence rods are arranged on the surface of the ring sleeve, flanges are arranged at the joint of two adjacent marine riser bodies, a hose is arranged between the two flanges, the two flanges are connected through spring steel bolts, and a monitoring probe is arranged on the opposite surface of each flange.
Description
Technical Field
The invention belongs to the field of marine risers, and particularly relates to a marine riser protection device for subsea production.
Background
The riser is an important and weak link in the whole marine drilling equipment, connects the steel pipes of the subsea blowout preventer stack and the floating offshore drilling rig, and is mainly used for isolating seawater, leading in a drilling tool and a casing pipe, and forming a channel for mud circulation. When the marine riser works in the sea, the marine riser can continuously receive the action of composite loads such as waves, ocean currents, vortexes and the like, the marine riser (particularly at a joint) can generate deformation and vibration in a certain range, when the force is larger than the bearing range of the marine riser, the marine riser can be broken and deformed to cause safety accidents, the marine environment can be polluted to cause influence which is difficult to recover, and the defects that the existing vortex-induced vibration suppression device is high in cost, complex in manufacturing process, heavy in weight, complex in installation, inconvenient in field implementation and operation and the like exist, and improvement is needed.
Disclosure of Invention
In order to solve the problems, the invention discloses a marine riser protection device for subsea production, which can protect a marine riser, particularly a joint, and has the advantages of simple structure, convenience in replacement, strong applicability and low cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a subsea production riser protector, includes the riser body, riser body surface is equipped with at least one annular, be equipped with the ring cover in the annular, the ring cover surface is equipped with many perpendicular vortex poles that set up, and two adjacent riser body junctions are equipped with the flange, are equipped with the hose between two flanges, pass through spring steel bolted connection between two flanges, are equipped with monitor on the flange opposite face.
As an improvement of the invention, the ring sleeve is formed by combining two semicircular sleeves.
As an improvement of the invention, the inner wall of the ring sleeve is convex.
As an improvement of the invention, the cross section of the spoiler rod is circular.
As an improvement of the invention, the two flanges are connected through 4-8 spring steel bolts, and 4-8 spring steel bolts are uniformly distributed on the outer side of the hose.
As a refinement of the invention, the height of the ring groove is greater than the height of the ring sleeve.
As an improvement of the invention, the hose is a polytetrafluoroethylene hose, and the thickness of the hose is more than 6 mm.
As an improvement of the invention, the flange is a plate type flat welding flange.
The invention has the beneficial effects that:
(1) the surface of the marine riser is provided with a ring sleeve, the surface of the ring sleeve is provided with a plurality of vertically arranged turbulence rods, when vortices attack, the impact of the vortices can be weakened by the plurality of turbulence rods arranged in different directions, and if the vortex strength is high, the ring sleeve can be pushed to rotate to unload strong impact force, so that the marine riser inside is protected;
(2) the hose is arranged between two adjacent marine risers, the two flanges are connected through a plurality of spring steel bolts, and the hose faces vortex or ocean current impact, the joints of the two marine risers can bear bending in a certain range, so that the hose can adapt to the complexity of ocean currents on the seabed and nonlinear deformation of the self structures of the marine risers, and the service life is long;
(3) the monitoring probes are arranged on the opposite surfaces of the flanges, so that the spring steel bolts are broken or the hoses are broken, and the spring steel bolts can be replaced and maintained in time;
(4) the hose is a polytetrafluoroethylene hose, can generate certain plastic deformation and is corrosion-resistant.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a cuff according to the present invention.
FIG. 3 is a schematic view of the ring sleeve and ring groove of the present invention.
List of reference numerals:
1. the marine riser comprises a marine riser body, 2, ring grooves, 3, a ring sleeve, 4, a turbulence rod, 5, a flange, 6, a hose, 7, a spring steel bolt, 8, a monitoring probe, 9 and an outward convex type.
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.
As shown in the figure, the marine riser protection device for subsea production comprises a marine riser body 1, wherein at least one annular groove 2 is formed in the surface of the marine riser body 1, an annular sleeve 3 is arranged in the annular groove, a plurality of vertically arranged turbulence rods 4 are arranged on the surface of the annular sleeve 3, when vortices attack, the impact of the vortices can be weakened by the turbulence rods 4 arranged in different directions, and if the vortex strength is high, the annular sleeve 3 can be pushed to rotate to unload strong impact force, so that an internal marine riser is protected.
The connecting part of two adjacent riser bodies 1 is provided with the flange 5, the hose 6 is arranged between the two flanges 5, the two flanges 5 are connected through the spring steel bolt 7, and the two flanges can bear bending in a certain range in the face of vortex or ocean current impact, so that the marine riser can adapt to the complexity of ocean currents on the seabed and nonlinear deformation of the structure of the riser, and is long in service life; after the marine current is impacted, the joints of the two marine riser can be rebounded to the initial vertical state under the action of the spring steel, and the normal operation is ensured.
The monitoring probe 8 is arranged on the opposite surface of the flange 5, so that the spring steel bolt can be timely replaced and maintained after the spring steel bolt is broken or the hose is broken
The ring sleeve 3 is formed by combining two semicircular sleeves, and is convenient to replace and maintain.
The inner wall of the ring sleeve 3 is convex 9, as shown in figure 3, so that the ring sleeve can rotate smoothly, and the stress is relieved to protect the marine riser.
The cross section of the turbulence rod 4 is smooth and round, so that the resistance is reduced, and the turbulence rod cannot be damaged quickly.
The two flanges 5 are connected through 4-8 spring steel bolts 7, and the 4-8 spring steel bolts 7 are uniformly distributed on the outer side of the hose, so that the borne impact force can be dispersed, and the resilience force is ensured.
The height of the ring groove 2 is larger than that of the ring sleeve 3, so that the ring sleeve 3 can freely rotate in the ring groove 2.
The hose 6 is a polytetrafluoroethylene hose, has the thickness of more than 6mm, can generate certain plastic deformation, is corrosion-resistant and has long service life.
The flange 5 is a stainless steel plate type flat welding flange and can bear larger pressure.
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. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (8)
1. The utility model provides a subsea production riser protector which characterized in that: including the marine riser body, marine riser body surface is equipped with at least one annular, be equipped with the ring cover in the annular, the ring cover surface is equipped with the vortex pole of many perpendicular settings, and two adjacent marine riser body junctions are equipped with the flange, are equipped with the hose between two flanges, pass through spring steel bolted connection between two flanges, are equipped with monitor on the flange opposite face.
2. The subsea production riser protection device of claim 1, wherein: the ring sleeve is formed by combining two semicircular sleeves.
3. The subsea production riser protection device of claim 1, wherein: the inner wall of the ring sleeve is convex.
4. The subsea production riser protection device of claim 1, wherein: the cross section of the spoiler rod is circular.
5. The subsea production riser protection device of claim 1, wherein: the two flanges are connected through 4-8 spring steel bolts, and the 4-8 spring steel bolts are uniformly distributed on the outer side of the hose.
6. The subsea production riser protection device of claim 1, wherein: the height of the ring groove is greater than that of the ring sleeve.
7. The subsea production riser protection device of claim 1, wherein: the hose is a polytetrafluoroethylene hose, and the thickness of the hose is larger than 6 mm.
8. The subsea production riser protection device of claim 1, wherein: the flange is a plate type flat welding flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087674.6A CN113898297A (en) | 2021-09-16 | 2021-09-16 | Subsea production riser protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087674.6A CN113898297A (en) | 2021-09-16 | 2021-09-16 | Subsea production riser protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113898297A true CN113898297A (en) | 2022-01-07 |
Family
ID=79028464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111087674.6A Pending CN113898297A (en) | 2021-09-16 | 2021-09-16 | Subsea production riser protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113898297A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334703A (en) * | 2013-06-24 | 2013-10-02 | 宝鸡石油机械有限责任公司 | Middle dual-flexibility device for offshore drilling riser |
| CN106641441A (en) * | 2017-02-23 | 2017-05-10 | 中国石油大学(北京) | Anti-corrosion buckle arrestor capable of suppressing vortex-induced vibration and resisting crushing expansion |
| CN110671059A (en) * | 2019-09-09 | 2020-01-10 | 建湖县永维阀门钻件有限公司 | Device for restraining vortex-induced vibration of marine drilling riser and preparation method thereof |
| CN110748305A (en) * | 2019-09-09 | 2020-02-04 | 建湖县永维阀门钻件有限公司 | Deepwater marine riser with protective shell |
| US20210239087A1 (en) * | 2020-02-02 | 2021-08-05 | Southwest Petroleum University | Device and method for swinging power generation and vibration suppression by using arc-shaped wing plates with rough surfaces |
-
2021
- 2021-09-16 CN CN202111087674.6A patent/CN113898297A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334703A (en) * | 2013-06-24 | 2013-10-02 | 宝鸡石油机械有限责任公司 | Middle dual-flexibility device for offshore drilling riser |
| CN106641441A (en) * | 2017-02-23 | 2017-05-10 | 中国石油大学(北京) | Anti-corrosion buckle arrestor capable of suppressing vortex-induced vibration and resisting crushing expansion |
| CN110671059A (en) * | 2019-09-09 | 2020-01-10 | 建湖县永维阀门钻件有限公司 | Device for restraining vortex-induced vibration of marine drilling riser and preparation method thereof |
| CN110748305A (en) * | 2019-09-09 | 2020-02-04 | 建湖县永维阀门钻件有限公司 | Deepwater marine riser with protective shell |
| US20210239087A1 (en) * | 2020-02-02 | 2021-08-05 | Southwest Petroleum University | Device and method for swinging power generation and vibration suppression by using arc-shaped wing plates with rough surfaces |
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