CN112832719A - Protection device of integrated underwater equipment and installation method thereof - Google Patents
Protection device of integrated underwater equipment and installation method thereof Download PDFInfo
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- CN112832719A CN112832719A CN202011552648.1A CN202011552648A CN112832719A CN 112832719 A CN112832719 A CN 112832719A CN 202011552648 A CN202011552648 A CN 202011552648A CN 112832719 A CN112832719 A CN 112832719A
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- underwater equipment
- underwater
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 5
- 239000010802 sludge Substances 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 5
- 241000191291 Abies alba Species 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
- E21B43/0107—Connecting of flow lines to offshore structures
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The invention discloses a protective device of integrated underwater equipment, which comprises a cylinder with openings at the top and the bottom, wherein the cylinder covers the underwater equipment; when the underwater device is applied to a channel area, a larger internal space can be formed by sinking the cylinder below a mud surface, and the underwater device and the like are arranged in the internal space, so that the underwater device in the channel area is positioned below a submarine mud surface line, and the navigation of a ship in the channel area is not influenced; the underwater equipment in the cylinder can be protected in all directions, and the underwater equipment in the shallow sea channel area is prevented from sinking or being buried by soil; control equipment and a process pipeline can be integrated in the inner space of the cylinder, so that a diver can conveniently enter the inner space for operation through the access hole in the top cover at the later stage; the invention provides an effective solution for the installation of underwater equipment in the oil and gas field exploitation project of the channel area.
Description
Technical Field
The invention relates to an underwater equipment protection device in the field of ocean engineering, in particular to an integrated underwater equipment protection device and an installation method thereof.
Background
At present, the working conditions of underwater equipment applied to a shallow sea channel region of Bohai sea in China are increasingly increased, the working conditions are limited by special conditions of the channel region, if an oil-gas field at the bottom of the sea in the channel region is developed, a development mode of an underwater production system is an effective solution, but the underwater equipment cannot expose a mud surface at the bottom of the sea and influence ship navigation in the channel region above the underwater equipment; in addition, the soil on the bottom of the Bohai sea is soft and thick, and if the equipment is directly placed on the sea bed, the equipment is easily buried by the soil, so that the later operation and observation are influenced, and the performance of the equipment is adversely affected. Therefore, underwater equipment needs to be sunk below the mud surface, the protection device is used for preventing the submarine silt or silt from burying the underwater equipment, and meanwhile, a space is formed inside the underwater equipment, so that a diver can conveniently enter operation in the later period.
Disclosure of Invention
The invention aims to solve the technical problem of providing a protection device for integrated underwater equipment, which can sink below a mud surface to form a larger internal space, prevent seabed silt or silt from entering the protection device and facilitate the installation of the underwater equipment in a channel area.
In order to solve the technical problem, the invention provides a protective device for integrated underwater equipment, which comprises a cylinder body, wherein the cylinder body is a cylinder with openings at the top and the bottom, the cylinder body covers the outside of the underwater equipment, the top of the cylinder body is connected with a top cover, a through hole is formed in the position, close to the top cover, of the cylinder body, an external connecting channel is formed in the through hole, a supporting structure is arranged on the side wall of the cylinder body, the supporting structure is fixed with the cylinder body, an access hole is formed in the top cover, and an access door is arranged at the access hole.
Further, the diameter of the cylinder is 8-15 m.
Further, the height of the cylinder is 6-10 m.
Furthermore, the top cover is a steel plate with a circular planar shape, the diameter of the steel plate is larger than the outer diameter of the cylinder, the top cover is placed at the top of the cylinder, and an outer brim is formed at the outer edge of the top cover in a folding mode towards the direction of the cylinder.
Furthermore, a limiting ring plate is arranged between the top cover and the cylinder, the diameter of the limiting ring plate is smaller than the inner diameter of the cylinder, and the limiting ring plate is perpendicular to the lower surface of the top cover.
Further, the supporting structure is a supporting plate, and the supporting plate is perpendicular to the inner wall of the cylinder.
Further, the service openings are two and are arranged on the top cover at intervals.
Further, the bottom of the cylinder is located below a mud surface line, the top of the cylinder is located above the mud surface line, and the outward connecting channel is arranged above the mud surface line.
Furthermore, the distance between the top of the cylinder and the mud line is 0.8-1.2 m.
The invention also provides an installation method of the protection device of the integrated underwater equipment, which comprises the following steps:
s1: a cylinder of the protective device is lowered to the position of the mud surface line, so that the protective device can sink stably;
s2: after removing the sludge and silt in the cylinder, pressurizing the top of the cylinder to make the bottom of the cylinder sink to a target depth;
s3: paving a layer of crushed sand on the inner side of the bottom of the cylinder;
s4: installing subsea equipment within the cylinder;
s5: and (5) installing a top cover.
The invention has the technical effects that: 1. the invention discloses a protective device for integrated underwater equipment, which comprises a cylinder body, wherein the cylinder body is a cylinder with openings at the top and the bottom, the cylinder is covered outside the underwater equipment, the top of the cylinder is connected with a top cover, a through hole is formed in the position, close to the top cover, of the cylinder, an external connecting channel is arranged at the through hole, a supporting structure is arranged on the side wall of the cylinder, the supporting structure is fixed with the cylinder, an access hole is formed in the top cover, and an access door is arranged at the access hole; when the underwater device is applied to a channel area, a larger internal space can be formed by sinking the cylinder below a mud surface, and the underwater device and the like are arranged in the internal space, so that the underwater device in the channel area is positioned below a submarine mud surface line, and the navigation of a ship in the channel area is not influenced; the underwater equipment in the cylinder can be protected in all directions, and the underwater equipment in the shallow sea channel area is prevented from sinking or being buried by soil; control equipment and a process pipeline can be integrated in the inner space of the cylinder, so that a diver can conveniently enter the inner space for operation through the access hole in the top cover at the later stage; the invention provides an effective solution for the installation of underwater equipment in the oil and gas field exploitation project of the channel area.
2. The invention relates to a protective device for integrated underwater equipment.A top cover is a steel plate with a circular plane shape, the diameter of the steel plate is larger than the outer diameter of a cylinder, the top cover is placed at the top of the cylinder, and the outer edge of the top cover is folded towards the direction of the cylinder to form an outer brim; the cylinder and the top cover are separately installed, so that the installation is convenient; the outer eaves can prevent silt from entering the cylinder.
3. According to the protection device for the integrated underwater equipment, the limiting ring plate is arranged between the top cover and the cylinder, the diameter of the limiting ring plate is smaller than the inner diameter of the cylinder, the limiting ring plate is perpendicular to the lower surface of the top cover, and when the top cover is placed at the top of the cylinder, the limiting ring plate is located in the cylinder and plays a role in preventing the top cover from sliding.
Drawings
FIG. 1 is a schematic cross-sectional view of a protective device of an integrated subsea installation of the present invention after installation underwater;
FIG. 2 is a schematic top view of the integrated subsea equipment containment device of the present invention after installation underwater;
fig. 3 is a diagram of the steps of a method of installing the guard of the present invention.
The main reference numbers in the figures illustrate:
1-protective device, 2-mud line, 3-target depth, 4-crushed sand, 5-Christmas tree, 6-output pipeline, 7-umbilical cable, 8-electro-hydraulic distribution module, 9-manifold, 11-cylinder, 12-top cover, 13-external connecting channel, 14-supporting structure, 15-access hole, 111-top, 112-bottom, 121-external eave and 122-limit ring plate.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Fig. 1 is a schematic sectional view of an integrated underwater equipment protection device of the present invention after underwater installation, fig. 2 is a schematic plan view of the integrated underwater equipment protection device of the present invention after underwater installation, and as shown in fig. 1 and fig. 2, the integrated underwater equipment protection device 1 includes a cylinder body, the cylinder body is a cylinder 11 with openings at both top and bottom, the cylinder 11 covers the underwater equipment, a top cover 12 is connected to the top 111 of the cylinder 11, a through hole is provided at a position of the cylinder 11 close to the top cover 12, an external connection channel 13 is provided at the through hole, a support structure 14 is provided on a side wall of the cylinder 11, the support structure 14 is fixed with the cylinder 11, an access opening 15 is provided on the top cover 12, and an access door is provided at the access opening 15.
When the protection device 1 integrated with underwater equipment is particularly applied to a channel area, a larger internal space can be formed by sinking the cylinder 11 below the mud line 2, and the underwater equipment and the like are arranged in the internal space, so that underwater equipment in the channel area is below the seabed mud line 2, and the navigation of ships in the channel area is not influenced; the underwater equipment in the cylinder 11 can be protected in all directions, and the underwater equipment in the shallow sea channel area is prevented from sinking or being buried by soil; and control equipment and process pipelines can be integrated in the inner space of the cylinder 11, so that a diver can conveniently enter the inner space for operation through the access hole on the top cover at the later stage; the invention provides an effective solution for the installation of underwater equipment in the oil and gas field exploitation project of the channel area.
The further improvement lies in that: the diameter of the cylinder 11 is 8 to 15m, and the preferable diameter is 10m and 12 m.
The further improvement lies in that: the height of the cylinder 11 is 6 to 10m, and the preferable height values are 8m and 10 m. In a preferred embodiment of the present invention, the cylinder 11 is made of steel, has a diameter of 12m and a height of 8m, and is made of steel plates by rolling, splicing and welding, and under the working condition, the cylinder has the functions of providing a larger internal installation operation space for underwater equipment and preventing surrounding silt from entering.
The further improvement lies in that: the top cover 12 is a steel plate with a circular plane shape, the diameter of the steel plate is larger than the outer diameter of the cylinder 11, the top cover 12 is placed on the top 111 of the cylinder 11, and the outer edge of the top cover 12 is folded towards the direction of the cylinder to form an outer eave 121; in this embodiment, the top cover 12 functions as a protective cover, and is made of reinforced steel plate material, and the cylinder 11 and the top cover 12 are separately installed, so that the installation is convenient; the provision of the external eaves 121 prevents silt from entering the drum 11 through the top 111.
The further improvement lies in that: be provided with spacing ring board 122 between top cap 12 and the drum 11, the diameter of spacing ring board 122 is less than the internal diameter of drum 11, and spacing ring board 122 is perpendicular with the lower surface of top cap 12, and when top cap 12 was placed at the top 111 of drum 11, spacing ring board 122 was located drum 11, played the effect that prevents top cap 12 and slide.
The further improvement lies in that: the supporting structure 14 is a supporting plate which is arranged perpendicular to the inner wall of the cylinder 11; in this embodiment, as shown in fig. 2, the supporting plate is a steel plate, the plane of the supporting plate is perpendicular to the axis of the cylinder 11, the surface of the supporting plate connected with the cylinder 11 is configured to be attached to the inner wall of the cylinder 11, and the supporting plate is welded and fixed to the inner wall of the cylinder 11, and is used for bearing the weight of small-sized underwater control equipment, process external transmission pipelines and the like, so that the cylinder 11 has a function of integrating underwater equipment or pipelines.
The further improvement lies in that: the access hole 15 has two, and the spaced apart setting is on top cap 12, and two access holes 15 are each other for reserve, make things convenient for the diver to get into and operate in drum 11.
The further improvement lies in that: the bottom 112 of the cylinder 11 is positioned below the mud line 2, the top 111 of the cylinder 11 is positioned above the mud line 2, and the external connecting channel 13 is arranged above the mud line 2, so that the device is suitable for the use condition that underwater equipment at the sea bottom cannot expose above the mud line 2; the external connection channel 13 is provided to facilitate the connection of process pipes or the connection of umbilical cables to the interior of the cylinder 11.
The further improvement lies in that: the distance between the top 111 of the cylinder 11 and the mud surface line 2 is 0.8-1.2 m, so that the top cover 12 is convenient to install and is not easy to be buried by mud to influence the operation and observation after installation.
The invention also provides an installation method of the protective device 1 integrated with underwater equipment, which comprises the protective device 1 of the invention, fig. 3 is a step diagram of the installation method of the protective device of the invention, as shown in fig. 3, taking the development practical application situation of the underwater oil and gas field in the Bohai sea channel region as an example, the installation steps of the protective device 1 are as follows:
s1: the cylinder 11 of the protection device 1 is lowered to the position of the mud surface line 2, so that the mud surface line sinks stably;
the bottom 112 of the cylinder 11 sinks under its own weight below the mud surface line 2.
S2: after the drum 11 is cleared of silt and silt, the top 111 of the drum is pressurized to sink the bottom 112 to the target depth 3;
the interior of drum 11 is cleared of silt or mud using a dredge pump or similar device and drum 11 will continue to sink, eventually sinking the bottom plate 112 of drum 11 to the target depth 3 (the predetermined mud level depth) by applying ballast to the top 111 of drum 1.
S3: a layer of crushed sand 4 is paved on the inner side of the bottom 112 of the cylinder 11; the function of the crushed sand 4 is to keep the cylinder 11 stable and in position at the target depth 3.
S4: installing underwater equipment in the cylinder 11;
as shown in fig. 1 and 2, the underwater equipment installed in the cylinder 11 comprises a christmas tree 5, an output pipeline 6 led out from the christmas tree 5 is connected to a manifold 9 located on a support structure 14, and then led out through an external connecting channel 13 to be connected to a subsea pipeline located outside the protection device 1; the umbilical cable 7 enters the cylinder 11 through the external connecting channel 14 and is connected with the electro-hydraulic distribution module 8 on the supporting structure 14, and the electro-hydraulic distribution module 8 is connected with the Christmas tree 5 through an electric flying line and a liquid flying line to realize hydraulic and electric control of the Christmas tree.
It should be understood that the subsea equipment of fig. 1 and 2 is only one application scenario of the present invention.
S5: the top cover 12 is installed.
After the connection of underwater equipment, pipelines, flying lines and the like in the cylinder 11 is finished, a top cover 12 is additionally arranged on the top 111 to protect the top of the underwater equipment in the cylinder 11; when maintenance operation needs to be carried out on underwater equipment and cables inside the cylinder 11 in the later period, a diver can enter the inside of the cylinder 11 through the two access ports 15 arranged on the top cover 12 to carry out related operation.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides an integrated underwater equipment's protector which characterized in that: the underwater equipment comprises a cylindrical shell, the cylindrical shell is a cylinder with the top and the bottom open, the cylindrical shell is covered outside the underwater equipment, the top of the cylindrical shell is connected with a top cover, the cylindrical shell is close to the position of the top cover, a through hole is formed in the position of the top cover, an external connecting channel is arranged at the through hole, a supporting structure is arranged on the side wall of the cylindrical shell, the supporting structure is fixed to the cylindrical shell, an access hole is formed in the top cover, and an access door is arranged at the access hole.
2. The integrated subsea equipment shelter of claim 1, wherein: the diameter of the cylinder is 8-15 m.
3. The integrated underwater equipment shelter of claim 1 or 2, wherein: the height of the cylinder is 6-10 m.
4. The integrated subsea equipment shelter of claim 1, wherein: the top cover is a steel plate with a circular planar shape, the diameter of the steel plate is larger than the outer diameter of the cylinder, the top cover is placed at the top of the cylinder, and an outer brim is formed at the outer edge of the top cover in a folding mode towards the direction of the cylinder.
5. The integrated underwater equipment shelter of claim 1 or 4, wherein: a limiting ring plate is arranged between the top cover and the cylinder, the diameter of the limiting ring plate is smaller than the inner diameter of the cylinder, and the limiting ring plate is perpendicular to the lower surface of the top cover.
6. The integrated subsea equipment shelter of claim 1, wherein: the supporting structure is a supporting plate, and the supporting plate is perpendicular to the inner wall of the cylinder.
7. The integrated subsea equipment shelter of claim 1, wherein: the two access openings are arranged on the top cover at intervals.
8. The integrated subsea equipment shelter of claim 1, wherein: the bottom of the cylinder is located below the mud surface line, the top of the cylinder is located above the mud surface line, and the outward connecting channel is arranged above the mud surface line.
9. The integrated underwater equipment shelter of claim 1 or 8, wherein: the top of the cylinder is 0.8-1.2 m away from the mud line.
10. A method for installing a protection device of integrated underwater equipment is characterized by comprising the following steps:
s1: a cylinder of the protective device is lowered to the position of the mud surface line, so that the protective device can sink stably;
s2: after removing the sludge and silt in the cylinder, pressurizing the top of the cylinder to make the bottom of the cylinder sink to a target depth;
s3: paving a layer of crushed sand on the inner side of the bottom of the cylinder;
s4: installing subsea equipment within the cylinder;
s5: and (5) installing a top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011552648.1A CN112832719A (en) | 2020-12-24 | 2020-12-24 | Protection device of integrated underwater equipment and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011552648.1A CN112832719A (en) | 2020-12-24 | 2020-12-24 | Protection device of integrated underwater equipment and installation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112832719A true CN112832719A (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011552648.1A Pending CN112832719A (en) | 2020-12-24 | 2020-12-24 | Protection device of integrated underwater equipment and installation method thereof |
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| Country | Link |
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| CN (1) | CN112832719A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818487A (en) * | 2021-07-15 | 2021-12-21 | 海洋石油工程股份有限公司 | Integral installation method for shallow water steel cylinder underwater platform |
| CN117211319A (en) * | 2023-09-05 | 2023-12-12 | 中海石油（中国）有限公司北京研究中心 | Protective caisson for under mud surface and installation method of equipment under mud surface |
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| CN2900987Y (en) * | 2006-06-01 | 2007-05-16 | 中国石化集团胜利石油管理局钻井工艺研究院 | Under water dry maintenance working cabin |
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2020
- 2020-12-24 CN CN202011552648.1A patent/CN112832719A/en active Pending
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| 李勇等: "浅水油气田开发水下干式采油装置", 《中国海洋平台》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818487A (en) * | 2021-07-15 | 2021-12-21 | 海洋石油工程股份有限公司 | Integral installation method for shallow water steel cylinder underwater platform |
| CN117211319A (en) * | 2023-09-05 | 2023-12-12 | 中海石油（中国）有限公司北京研究中心 | Protective caisson for under mud surface and installation method of equipment under mud surface |
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Application publication date: 20210525 |