CN117638729A - Jacket platform distributed pipe clamp type submarine cable installation method - Google Patents
Jacket platform distributed pipe clamp type submarine cable installation method Download PDFInfo
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- CN117638729A CN117638729A CN202311730514.8A CN202311730514A CN117638729A CN 117638729 A CN117638729 A CN 117638729A CN 202311730514 A CN202311730514 A CN 202311730514A CN 117638729 A CN117638729 A CN 117638729A
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- platform
- submarine cable
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- 238000009434 installation Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004873 anchoring Methods 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000013459 approach Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 6
- 230000009189 diving Effects 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Laying Of Electric Cables Or Lines Outside (AREA)
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Abstract
The invention discloses a jacket platform distributed pipe clamp type submarine cable installation method, which comprises the following steps: determining the mounting positions of pipe clamps according to the anchoring positions of the platform, wherein a plurality of pipe clamps are fixedly connected to the protective pipe at the anchoring bottom end of the platform; the coaxiality of the pipe clamps is adjusted, and a signal cable is reserved in the pipe clamps; installing an anchoring base plate on a construction ship; the platform personnel connect the platform winch steel wire rope to a signal cable, and the construction ship recovers the platform winch steel wire rope to a deck of the construction ship through the signal cable; the construction ship connects the steel wire rope of the platform winch to the end part of the newly-built submarine cable, and the platform winch drags the newly-built submarine cable; an anchor is arranged on the newly-built submarine cable, and an ROV connects the anchor to an anchor base plate; and (3) pulling the newly-built submarine cable to pass through a plurality of pipe clamps and then to the platform anchoring position, and fixing the newly-built submarine cable by using an anchoring flange to finish submarine cable installation. According to the invention, submarine cable installation can be completed under the condition that the submarine cable J-shaped pipe is not reserved on the platform, so that the installation workload is reduced, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a jacket platform distributed pipe clamp type submarine cable installation method.
Background
The jacket platform is the most widely used marine oil and gas production facility worldwide, mainly comprises a jacket, pile legs and an upper module, is used as one of fixed platforms, and is applied in a large amount in the sea area within 200m water depth and has been greatly successful. With the continuous development of China offshore oil, the deep water jacket platform is gradually developed in front of the eyes of people and is increasingly widely applied. And the operation of the offshore platform power system is supported and ensured, and the submarine cable is not separated. Under the influence of marine environment, the submarine cable is generally influenced by movements such as wind, current and wave, and damage to the submarine cable is possibly generated, and conventionally, a jacket platform is provided with a J-shaped protection tube in advance or installed at sea, and the protection tube penetrates through the whole jacket to reach the seabed so as to protect the submarine cable.
In the traditional submarine cable installation, a drawing winch is arranged on a fixed platform, a winch steel wire rope passes through a J-shaped pipe to reach the seabed, and the winch steel wire rope is brought back to a working ship and connected to the submarine cable; along with the traction of the platform winch, the working ship releases the submarine cable in a following way, and finally the submarine cable can reach the upper part of the platform to be fixed through the J-shaped pipe, so that the submarine cable can be protected by the protective pipe, the damage to the submarine cable caused by the marine environment is reduced, and the construction technology which is most widely applied at present is provided.
If the jacket platform needs to be newly added with the submarine cable, and the reserved protective tube of the platform is unavailable or insufficient, the newly added protective tube of the saturated diving is needed to be used, then the submarine cable is pulled to the platform through the newly added J-shaped tube, the saturated diving is mobilized to install the protective tube, the cost is high, the construction period is long, and the construction efficiency is low.
Disclosure of Invention
The invention aims to provide a jacket platform distributed pipe clamp type submarine cable installation method, which can complete submarine cable installation under the condition that a submarine cable J-shaped pipe is not reserved on a platform, reduces installation workload, does not need to use saturated diving, reduces risks and saves cost.
In order to achieve the purpose of the invention, the invention provides a jacket platform distributed pipe clamp type submarine cable installation method, which comprises the following steps:
s1, determining the installation position of pipe clamps according to the anchoring position of a platform, wherein a plurality of pipe clamps are arranged at intervals and fixedly connected to a protection pipe at the anchoring bottom end of the platform;
s2, carrying out coaxiality adjustment on a plurality of pipe clamps by platform personnel, and reserving a signal cable in the pipe clamps;
s3, installing an anchoring base plate by the construction ship according to the positioning beacon, wherein the anchoring base plate is arranged in an anchoring way towards the platform;
s4, a platform worker connects a platform winch steel wire rope to the signal cable, and the construction ship passes through the signal cable to pass through the pipe clamp and then recovers the platform winch steel wire rope to a deck of the construction ship;
s5, connecting the steel wire rope of the platform winch to the end part of the newly-built submarine cable by the construction ship, and continuously dragging the newly-built submarine cable by the platform winch;
s6, arranging an anchor on the newly-built submarine cable, and connecting the anchor to the anchoring base plate by an ROV when the anchor approaches the anchoring base plate in the re-dragging process of the newly-built submarine cable;
s7, the platform personnel continue to drag and pull the newly built submarine cable, pass through a plurality of pipe clamps and then reach the platform anchoring position, fix the newly built submarine cable by using an anchoring flange, and finish submarine cable installation.
As a preferable embodiment of the present invention, in step S1, the mounting position and orientation of the pipe clamp are determined according to the nearby structure, so as to avoid interference of the nearby structure.
In the step S1, the pipe clamp installation work is divided into an above-water part and an underwater part, and the pipe clamp of the above-water part is installed by erecting a scaffold by platform personnel; after the pipe clamps of the water part are installed, air divers position the pipe clamps according to the positions of the pipe clamps of the water part, and install the pipe clamps of the water part.
In step S2, the coaxiality of the pipe clamps is adjusted by positioning the submarine cable mounting holes of the pipe clamps at a uniform axis position.
As the preferable technical scheme of the invention, one end of the signal cable is arranged on the platform for anchoring, and the other end of the signal cable sequentially passes through a plurality of sea cable mounting holes of the pipe clamps and then is placed in water to be recovered to a deck of a construction ship by the construction ship.
As a preferred technical solution of the present invention, in step S6, the anchoring member includes a vertical limit clip and a mooring chain, the vertical limit clip is mounted on the newly-built sea cable, one end of the mooring chain is connected to the vertical limit clip, and the other end of the mooring chain is set as a free end for connecting the anchoring base plate.
As a preferred embodiment of the present invention, in step S6, the operation of connecting the anchor to the anchor base includes: continuously dragging the newly built submarine cable by platform personnel through a winch; the ROV observes the mooring chain motion position underwater, and when the mooring chain approaches the anchoring base plate, platform personnel pause pulling the newly-built sea cable, and the ROV connects the free end of the mooring chain to the anchoring base plate.
Compared with the prior art, the invention provides a jacket platform distributed pipe clamp type submarine cable installation method, which has the following beneficial effects:
aiming at the situation that a submarine cable needs to be newly added when a jacket platform does not have a reserved protective tube, the installation method divides the installation of the submarine cable newly built by the jacket platform into two parts. The first part is a fixed submarine cable, and the submarine cable with the water depth of more than 20m is fixed by a distributed pipe clamp; the second part is a dynamic sea cable, the sea cable with the water depth below 20m adopts a dynamic configuration, and the sea cable is fixed by a limiting structure vertical limiting clip, a mooring chain and an anchoring base plate. According to the invention, the distributed pipe clamps are installed by air diving and platform personnel, a platform winch drags a submarine cable into the pipe clamps, and the submarine cable is fixed above a platform; the dynamic submarine cable of the underwater part is fixed by an anchoring base plate, a vertical limiting clamp is arranged on the submarine cable body, the clamp is paved to the underwater anchoring base plate, and then an ROV is used for connection. By the installation method, sea cable installation can be completed under the condition that the sea cable J-shaped pipe is not reserved on the platform, installation workload is reduced, saturated diving is not required to be used, risks are reduced, and cost is saved.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
1 is a platform anchor, 2 is a protection pipe, 3 is a pipe clamp, 4 is a newly built submarine cable, 5 is a vertical limiting clamp, 6 is an anchor base plate, and 7 is a mooring chain.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an embodiment of the invention provides a jacket platform distributed pipe clamp type submarine cable installation method, which comprises the following steps:
s1, determining the installation positions of pipe clamps 3 according to the positions of the platform anchors 1, wherein a plurality of pipe clamps 3 are fixedly connected to a protection pipe 2 at the bottom end of the platform anchors 1 in a spaced arrangement mode;
s2, carrying out coaxiality adjustment on a plurality of pipe clamps 3 by platform personnel, and reserving a signal cable in the pipe clamps 3;
s3, the construction ship installs an anchoring base plate 6 according to the positioning beacon, and the anchoring base plate 6 is arranged towards the platform anchoring 1;
s4, a platform worker connects a platform winch steel wire rope to the signal cable, and the construction ship passes through the pipe clamp 3 through the signal cable and then recovers the platform winch steel wire rope to a deck of the construction ship;
s5, connecting the steel wire rope of the platform winch to the end part of the newly-built submarine cable 4 by the construction ship, and continuously dragging the newly-built submarine cable 4 by the platform winch;
s6, arranging an anchor on the newly-built submarine cable 4, and connecting the anchor to the anchor base plate 6 by an ROV when the anchor approaches the anchor base plate 6 in the re-dragging process of the newly-built submarine cable 4;
and S7, continuously dragging the newly-built submarine cable 4 by platform personnel, penetrating through a plurality of pipe clamps 3 to the platform anchoring 1, and fixing the newly-built submarine cable 4 by using an anchoring flange to finish submarine cable installation.
In one embodiment of the present invention, in step S1, the installation position and orientation of the pipe clamp 3 need to be determined according to the nearby structure, so as to avoid interference of the nearby structure.
In one embodiment of the present invention, in step S1, the pipe clamp 3 is installed by setting up a scaffold by a platform person, wherein the pipe clamp 3 is installed in a water part and an underwater part; after the pipe clamp 3 of the water part is installed, the air diver positions according to the position of the pipe clamp 3 of the water part, and installs the pipe clamp 3 of the underwater part.
In one embodiment of the present invention, in step S2, the coaxiality of the pipe clamp 3 is adjusted by positioning a plurality of submarine cable mounting holes of the pipe clamp 3 at a uniform axis position.
In one embodiment of the invention, one end of the signal cable is arranged on the platform anchoring 1, and the other end of the signal cable sequentially passes through a plurality of sea cable mounting holes of the pipe clamps 3 and then is placed in water, and is recovered to a deck of a construction ship by the construction ship.
In one embodiment of the present invention, in step S6, the anchor comprises a vertical limit catch 5 and a mooring chain 7, the vertical limit catch 5 is mounted on the new sea cable 4, one end of the mooring chain 7 is connected to the vertical limit catch 5, and the other end of the mooring chain 7 is set as a free end for connecting the anchoring base plate 6.
In one embodiment of the invention, in step S6, the operation of connecting the anchor to the anchor base plate 6 comprises: continuously dragging the newly built submarine cable 4 by platform personnel through a winch; the ROV observes under water the position of the mooring chain 7 movement, and when the mooring chain 7 approaches the anchor pad 6, the platform personnel pauses the pulling of the newly built sea cable 4, and the ROV connects the free end of the mooring chain 7 to the anchor pad 6.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (7)
1. The jacket platform distributed pipe clamp type submarine cable installation method is characterized by comprising the following steps of:
s1, determining the installation positions of pipe clamps (3) according to the positions of the platform anchors (1), wherein a plurality of the pipe clamps (3) are fixedly connected to a protection pipe (2) at the bottom end of the platform anchors (1) at intervals;
s2, carrying out coaxiality adjustment on a plurality of pipe clamps (3) by platform personnel, and reserving a signal cable in the pipe clamps (3);
s3, installing an anchoring base plate (6) by the construction ship according to the positioning beacon, wherein the anchoring base plate (6) is arranged towards the platform anchoring (1);
s4, a platform worker connects a platform winch steel wire rope to the signal cable, and the construction ship passes through the pipe clamp (3) through the signal cable and then recovers the platform winch steel wire rope to a deck of the construction ship;
s5, connecting the steel wire rope of the platform winch to the end part of the newly-built submarine cable (4) by the construction ship, and continuously dragging the newly-built submarine cable (4) by the platform winch;
s6, arranging an anchor on the newly-built submarine cable (4), and connecting the anchor to the anchor base plate (6) by an ROV when the anchor approaches the anchor base plate (6) in the re-dragging process of the newly-built submarine cable (4);
s7, continuously dragging the newly-built submarine cable (4) by platform personnel, penetrating through a plurality of pipe clamps (3) to the platform anchoring position (1) and fixing the newly-built submarine cable (4) by using an anchoring flange to finish submarine cable installation.
2. The jacket platform distributed pipe clamp type submarine cable installation method according to claim 1, wherein the method comprises the following steps of:
in step S1, the installation position and the orientation of the pipe clamp (3) are determined according to the nearby structures, and interference of the nearby structures is avoided.
3. The jacket platform distributed pipe clamp type submarine cable installation method according to claim 1, wherein the method comprises the following steps of:
in the step S1, the pipe clamp (3) is divided into an over-water part and an under-water part, and the pipe clamp (3) of the over-water part is installed by erecting a scaffold by platform personnel; after the pipe clamp (3) of the water part is installed, positioning the air diver according to the position of the pipe clamp (3) of the water part, and installing the pipe clamp (3) of the underwater part.
4. The jacket platform distributed pipe clamp type submarine cable installation method according to claim 1, wherein the method comprises the following steps of:
in step S2, coaxiality adjustment of the pipe clamp (3) is performed by positioning a plurality of submarine cable mounting holes of the pipe clamp (3) at a uniform axis position.
5. The jacket platform distributed pipe clamp type submarine cable installation method according to claim 4, wherein the method comprises the following steps of:
one end of the signal cable is arranged on the platform anchoring (1), and the other end of the signal cable sequentially passes through a plurality of sea cable mounting holes of the pipe clamps (3) and then is placed in water, and is recovered to a deck of the construction ship by the construction ship.
6. The jacket platform distributed pipe clamp type submarine cable installation method according to claim 1, wherein the method comprises the following steps of:
in step S6, the anchoring member comprises a vertical limiting clip (5) and a mooring chain (7), wherein the vertical limiting clip (5) is mounted on the newly-built submarine cable (4), one end of the mooring chain (7) is connected with the vertical limiting clip (5), and the other end of the mooring chain (7) is set to be a free end and is used for being connected with the anchoring base plate (6).
7. The jacket platform distributed pipe clamp type submarine cable installation method according to claim 6, wherein the method comprises the following steps of:
in step S6, the operation of connecting the anchor to the anchor base plate (6) comprises: continuously dragging the newly built submarine cable (4) by platform personnel through a winch; the ROV observes the movement position of the mooring chain (7) underwater, when the mooring chain (7) approaches the anchoring base plate (6), platform personnel pause pulling the newly built sea cable (4), and the ROV connects the free end of the mooring chain (7) to the anchoring base plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311730514.8A CN117638729A (en) | 2023-12-15 | 2023-12-15 | Jacket platform distributed pipe clamp type submarine cable installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311730514.8A CN117638729A (en) | 2023-12-15 | 2023-12-15 | Jacket platform distributed pipe clamp type submarine cable installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117638729A true CN117638729A (en) | 2024-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311730514.8A Pending CN117638729A (en) | 2023-12-15 | 2023-12-15 | Jacket platform distributed pipe clamp type submarine cable installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117638729A (en) |
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2023
- 2023-12-15 CN CN202311730514.8A patent/CN117638729A/en active Pending
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