CN113958267B - Improved drilling riser assembly - Google Patents
Improved drilling riser assembly Download PDFInfo
- Publication number
- CN113958267B CN113958267B CN202111087654.9A CN202111087654A CN113958267B CN 113958267 B CN113958267 B CN 113958267B CN 202111087654 A CN202111087654 A CN 202111087654A CN 113958267 B CN113958267 B CN 113958267B
- Authority
- CN
- China
- Prior art keywords
- protection device
- power board
- force
- unload
- drilling riser
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 14
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 239000013535 sea water Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
-
- 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
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 an improved drilling riser assembly, which comprises a pipeline body, wherein a limiting groove is formed in the pipeline body, a protection device is arranged in the limiting groove body, the protection device is of an annular structure, a plurality of layers of force-unloading plates are arranged outside the protection device, the force-unloading plates are vertically arranged outside the protection device, the thickness of the force-unloading plates gradually increases from outside to inside, longitudinal through holes are formed in the force-unloading plates, and vertical reinforcing ribs are arranged on the circumference of the outer sides of the plurality of layers of force-unloading plates.
Description
Technical Field
The invention belongs to the field of risers, and particularly relates to an improved drilling riser assembly.
Background
The marine drilling riser is a petroleum drilling equipment with high risk, high difficulty, high technology and high added value, and is connected with a subsea blowout preventer stack and a steel pipe of a floating offshore drilling device, and is mainly used for isolating seawater, guiding drilling tools and sleeves and forming a channel for mud circulation. The integrality of marine riser is crucial to offshore operation safety, when marine riser during operation in the ocean, can continuously receive the effect of wave, compound load such as ocean current, and the marine riser can produce deformation and vibrations in a certain extent, and when this strength was greater than marine riser's bearing range, the marine riser will take place fatigue failure, causes the incident, can pollute the marine environment moreover, causes the influence that is difficult to retrieve, and current vibration suppression device is with high costs, and manufacturing process is complicated, and weight is big, installs loaded down with trivial details and on-the-spot implementation operation inconvenient etc. not enough, needs the improvement.
Disclosure of Invention
In order to solve the problems, the invention discloses an improved drilling riser assembly, wherein a protection device is added on the outer side of a riser, so that the scouring of ocean currents to the riser can be reduced, the riser is protected, the structure is simple and practical, and the assembly and the disassembly are convenient.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
The utility model provides an improvement type well drilling riser sub-assembly, includes the pipeline body, be equipped with the spacing groove on the pipeline body, this internal protection device that is equipped with of spacing groove, protection device is annular structure, and the protection device outside is equipped with a plurality of layers and unloads the power board, it sets up in the protection device outside perpendicularly to unload the power board, unloads the power board and becomes thick gradually from outer to interior thickness, unloads and is equipped with fore-and-aft perforation on the power board, and a plurality of layers unload power board outside circumference and be equipped with vertical strengthening rib.
As an improvement of the invention, the protection device is formed by combining and connecting two semicircular ring sleeves.
As an improvement of the invention, the inner wall and the upper end and the lower end of the protection device are provided with buffer layers.
As an improvement of the invention, the cross section of the force-unloading plate is trapezoid or triangle.
As an improvement of the invention, the number of the limiting grooves arranged on the pipeline body is not less than one group.
As an improvement of the invention, the force-unloading plate is a spring steel plate.
As an improvement of the invention, 4 reinforcing ribs are arranged in a cross shape.
The beneficial effects of the invention are as follows:
(1) The multi-layer force unloading plate is wrapped on the outer side of the pipeline body, and the impact of the vortex on the marine riser can be quickly broken through the multi-layer triangle structure of the multi-layer force unloading plate;
(2) If facing the horizontal ocean current impact, the multi-layer triangle structure can disperse the ocean current impact force up and down and finally offset the impact, so that the impact on the marine riser is weakened, if facing the longitudinal ocean current impact, the protection device can be decomposed layer by layer, the triangle structure can also split the seawater, meanwhile, the force unloading plate is provided with a longitudinal through hole, the seawater passes through the through hole, the resistance is reduced, the deformation of the force unloading plate is small, and the service life is long;
(3) The force unloading plate is a spring steel plate, has certain deformation and rebound characteristics, can resist various complex conditions on the sea bottom, and provides strong protection for the marine riser;
(4) The outer circumferences of the force-unloading plates are provided with vertical reinforcing ribs, so that the force-unloading plates are combined into a whole, and the impact resistance is higher;
(5) The inner wall of the protection device is provided with the buffer layer, so that the influence of the transverse impact force on the water-proof pipe can be relieved, and the buffer layer is also arranged at the upper end and the lower end of the protection device, so that the influence of the longitudinal impact force on the water-proof pipe can be relieved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the protection device according to the present invention.
Fig. 3 is a schematic diagram illustrating the assembly of the protection device and the limiting groove according to the present invention.
Fig. 4 is a force dispersion diagram of the protection device of the present invention when impacted.
List of reference numerals:
1. Pipeline body, 2, spacing groove, 3, protection device, 4, unload the power board, 5, the through-hole, 6, the strengthening rib, 7, the ring cover, 8, buffer layer, 9, bolt.
Detailed Description
The present invention is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the invention and not limiting the scope of the invention.
As shown in the figure, the improved drilling riser assembly comprises a pipeline body 1, wherein a limiting groove 2 is formed in the pipeline body, a protection device 3 is arranged in the limiting groove body, the protection device 3 is of an annular structure, a plurality of layers of force unloading plates 4 are arranged on the outer side of the protection device 3, the force unloading plates 4 are vertically arranged on the outer side of the protection device 3, the thickness of the force unloading plates 4 gradually increases from outside to inside, longitudinal through holes 5 are formed in the force unloading plates 4, and vertical reinforcing ribs 6 are arranged on the circumference of the outer sides of the force unloading plates.
The cross section of the force unloading plate 4 is trapezoid or triangle, the multi-layer force unloading plate 4 is wrapped on the outer side of the pipeline body 1, and the impact of vortex on the marine riser can be quickly broken through the multi-layer triangle structure.
If the impact force of ocean currents can be dispersed up and down and finally offset by the multi-layer triangle structure of the impact force-absorbing device not facing the vortex but facing the transverse ocean currents, as shown in fig. 4, the impact on the marine riser is weakened, if the impact force-absorbing device is facing the longitudinal ocean currents, the protection device can be decomposed layer by layer, the seawater can be split by the triangle structure, meanwhile, the force-absorbing plate is provided with the longitudinal through holes 5, the seawater passes through the through holes, the resistance is reduced, the deformation of the force-absorbing plate is small, and the service life is long;
The force unloading plate 4 is a spring steel plate, has certain deformation and rebound characteristics, can resist various complicated conditions on the sea bottom, and provides strong protection for the marine riser.
According to the invention, the outer circumferences of the force-unloading plates 4 are provided with the vertical reinforcing ribs 6, so that the force-unloading plates are combined into a whole, and the impact resistance is higher. 4 reinforcing ribs 6 are arranged in a cross shape.
The protection device 3 is formed by combining and connecting two semicircular ring sleeves 7, and as shown in fig. 2, the two semicircular ring sleeves 7 are connected together through bolts 9, so that the assembly, disassembly and maintenance are convenient.
The inner wall of the protection device 3 is provided with the buffer layer 8, so that the influence of transverse impact force on the marine riser can be relieved, and the upper end and the lower end of the protection device are also provided with the buffer layer 8, so that the influence of longitudinal impact force on the marine riser can be relieved.
The number of the limiting grooves 2 arranged on the pipeline body 1 is not less than one group (two groups in FIG. 1), and the limiting grooves are wrapped on the outer side of the whole water-proof pipe to protect the water-proof pipe.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (3)
1. An improved drilling riser assembly, characterized by: the pipeline comprises a pipeline body, wherein a limiting groove is formed in the pipeline body, a protection device is arranged in the limiting groove body, the protection device is of an annular structure, and the protection device is formed by combining and connecting two semicircular annular sleeves; the protection device outside is equipped with a plurality of layers and unloads the power board, it sets up in the protection device outside perpendicularly to unload the power board, it is spring steel plate to unload the power board, unload the power board and become thick from outer to interior thickness gradually, it is trapezoidal or triangle-shaped to unload the cross section of power board, is equipped with fore-and-aft through hole on unloading the power board, and a plurality of layers unload the power board outside circumference and be equipped with vertical strengthening rib, the strengthening rib has 4, is cross-shaped range.
2. An improved drilling riser assembly as in claim 1 wherein: the inner wall of the protection device and the upper end and the lower end of the protection device are respectively provided with a buffer layer.
3. An improved drilling riser assembly as in claim 1 wherein: the number of the limiting grooves arranged on the pipeline body is not less than one group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087654.9A CN113958267B (en) | 2021-09-16 | 2021-09-16 | Improved drilling riser assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111087654.9A CN113958267B (en) | 2021-09-16 | 2021-09-16 | Improved drilling riser assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113958267A CN113958267A (en) | 2022-01-21 |
| CN113958267B true CN113958267B (en) | 2024-06-14 |
Family
ID=79461795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111087654.9A Active CN113958267B (en) | 2021-09-16 | 2021-09-16 | Improved drilling riser assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113958267B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005343337A (en) * | 2004-06-03 | 2005-12-15 | Tokai Univ | Floating structure and hydrofoil structure |
| US20110174206A1 (en) * | 2010-01-19 | 2011-07-21 | Kupersmith John A | Wave attenuating large ocean platform |
| CN103015387B (en) * | 2011-09-23 | 2015-08-19 | 华锐风电科技(集团)股份有限公司 | Protective device and marine brace table |
| CN103485732B (en) * | 2013-10-15 | 2016-04-06 | 西南石油大学 | A kind of helical strake vortex induced vibration inhibiting device with rotating vane and method |
| CN104265193B (en) * | 2014-08-13 | 2017-09-08 | 顾继俊 | A kind of device and method for being used to suppress cylindrical structural thing vortex-induced vibration |
| KR101662486B1 (en) * | 2014-11-07 | 2016-10-07 | 삼성중공업(주) | Semi-submersible offshore structure |
| CN105604500A (en) * | 2016-03-11 | 2016-05-25 | 青岛迪玛尔海洋工程有限公司 | Underwater riser vortex-induced vibration abatement device |
| CN107091059A (en) * | 2017-05-16 | 2017-08-25 | 哈尔滨工程大学 | A kind of flexible anti-vortex-induced vibration device for submerged riser |
| CN109751473A (en) * | 2017-11-03 | 2019-05-14 | 黄玉春 | Submarine pipeline inhibits device |
| CN108661568B (en) * | 2018-05-18 | 2019-11-08 | 中国石油大学(北京) | Deep water conduit device |
| CN111301613A (en) * | 2020-03-16 | 2020-06-19 | 杨美娟 | Anchoring mechanism for ocean buoy |
| CN111924056B (en) * | 2020-10-14 | 2020-12-25 | 山东省海洋资源与环境研究院(山东省海洋环境监测中心、山东省水产品质量检验中心) | Mobile platform for inspection of marine ranching |
-
2021
- 2021-09-16 CN CN202111087654.9A patent/CN113958267B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113958267A (en) | 2022-01-21 |
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