CN212135994U - Novel deepwater umbilical cable linear configuration - Google Patents
Novel deepwater umbilical cable linear configuration Download PDFInfo
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- CN212135994U CN212135994U CN202021010536.9U CN202021010536U CN212135994U CN 212135994 U CN212135994 U CN 212135994U CN 202021010536 U CN202021010536 U CN 202021010536U CN 212135994 U CN212135994 U CN 212135994U
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- umbilical
- umbilical cable
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Abstract
The utility model discloses a novel deep water umbilical cable line type configuration. The umbilical system configuration comprises an umbilical and an arcuate buoy; two ends of the umbilical cable are respectively connected with the floating platform and the underwater distribution unit positioned under the seabed; the umbilical cable is fixedly matched with the arched buoy, and a mooring cable is connected with the arched buoy and an anchor positioned on the seabed and used for bending; the arched buoy is arranged close to the seabed; a plurality of small buoys are fixed on a certain length of the umbilical cable and used for bending. The utility model uses two bends made by the float to reduce the influence of the platform movement on the life of the umbilical cable; meanwhile, the top tension of the umbilical cable can be reduced, so that the tension design requirement of the umbilical cable is reduced, and the cost is reduced.
Description
Technical Field
The utility model relates to a novel deep water umbilical cable line type configuration.
Background
The umbilical cable is an important component in deepwater oil and gas development, plays an important role in connecting a water surface floating device and a seabed oil well, and is a life line for ocean oil and gas development. Prior art umbilicals are predominantly catenary configurations. Therefore, a novel umbilical cable configuration is developed to meet various floating platforms in various severe environments, and the umbilical cable can adapt to large displacement of a ship in the horizontal direction and resist the movement of the ship from being transmitted to an underwater distribution unit; meanwhile, the dead weight of the umbilical cable is reduced, the tension requirement of the umbilical cable is reduced, and the cost is saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel configuration of umbilical cable, this umbilical cable system integrated electricity, control signal, hydraulic signal utilize the flotation pontoon to make two bendings, can reduce the influence of the motion of platform to umbilical cable life-span.
The utility model provides an umbilical cable system structure, which comprises an umbilical cable and an arched buoy;
two ends of the umbilical cable are respectively connected with the floating platform and the underwater distribution unit positioned under the seabed;
the umbilical cable is fixedly matched with the arched buoy, and a mooring cable is connected with the arched buoy and an anchor positioned on the seabed and used for bending; the arched buoy is arranged close to the seabed;
a plurality of small buoys are fixed on a certain length of the umbilical cable and used for bending.
In the umbilical system configuration, the umbilical is in a catenary configuration with a top made of composite materials or steel, and includes hydraulic pipes, signal cables, cables and the like.
In the umbilical cable system configuration, the arch-shaped buoy is semi-circular or cylindrical.
In the umbilical system configuration, the mooring lines are anchor chains, steel wire ropes or polyester lines.
In the above umbilical system configuration, the anchor is a gravity anchor or a suction anchor.
In the umbilical system configuration described above, the small buoy is cylindrical.
In the umbilical system configuration described above, the floating platform is a floating production platform.
The utility model discloses umbilical cable configuration has following beneficial effect:
the umbilical cable structure of the utility model can provide the horizontal displacement compensation of the floating platform by utilizing the two bends made by the floating barrel, especially in shallow water areas with severe environmental conditions, the horizontal displacement of the platform is larger, the horizontal displacement compensation provided by the conventional catenary is limited, the umbilical cable is easily in a tensioning state, and the umbilical cable is broken due to overlarge stress in severe cases; in addition, the umbilical cable structure can reduce the influence of the motion of the platform on the service life of the umbilical cable by utilizing the two bends made by the buoy; thirdly, the top tension of the umbilical can be reduced, thereby reducing the tension design requirement of the umbilical and reducing the cost.
Drawings
Fig. 1 is a schematic structural diagram of the umbilical system configuration of the present invention.
The respective symbols in the figure are as follows:
1 umbilical cable, 2 arch buoys, 3 mooring cables, 4 anchors, 5 floating platforms, 6 small buoys, 7 water surfaces and 8 sea beds.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.
As shown in fig. 1, the utility model provides a novel structure of an umbilical cable, which comprises an umbilical cable 1, an arched buoy 2, a mooring cable 3, an anchor 4 and a plurality of small buoys 6. Wherein, two ends of the umbilical cable 1 are respectively connected with the floating platform 5 and the underwater distribution unit positioned below the seabed 8; the arched pontoon 2 floats 2 above the seabed 8; two ends of the mooring cable 3 are respectively connected with the arched buoy 2 and the anchor 4 on the seabed 8; several small buoys 6 are fixed to a certain length of the umbilical 1 for making bends.
In the embodiment, the top of the umbilical cable 1 is connected with the floating platform 5, a suspension angle in a reasonable range is set, the umbilical cable is connected through an I-tube type, and the I-tube is connected with an anti-bending device and mainly used for preventing the umbilical cable from being bent excessively due to the movement of the platform; the bottom of the umbilical is connected with the underwater distribution unit through a watertight quick connector.
The small buoy 6 in this embodiment is fixed to the umbilical cable 1 by its own buoyancy, creating a first bend to ensure that the umbilical cable 1 is not damaged by compression or bending.
The arched buoy 2 in the embodiment is connected with the anchor 4 through the mooring cable 3, floats in water, is relatively close to the seabed 8, can reduce the effect of ocean current, and the arched buoy 2 provides upward buoyancy, and the anchor 4 is used for positioning the arched buoy 2 and preventing the arched buoy 2 from moving along with the current. The umbilical cable 1 is fixed to the surface of the arch buoy 2 by a fixing device and extends to the seabed to form a second bend.
The umbilical configuration of this embodiment is designed to meet the overall performance of either the API or DNV specifications, including strength and fatigue requirements.
The novel umbilical cable configuration in the embodiment has important strategic and economic significance for safe and efficient development of deep-water and ultra-deep-water oil fields in the south China sea; the method also has good application value for oil and gas development in shallow water severe environment.
To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A deepwater umbilical cable line type configuration comprises an umbilical cable and an arched buoy; the method is characterized in that:
two ends of the umbilical cable are respectively connected with the floating platform and the underwater distribution unit positioned under the seabed;
the umbilical cable is fixedly matched with the arched buoy, and a mooring cable is connected with the arched buoy and an anchor positioned on the seabed and used for bending; the arched buoy is arranged close to the seabed;
a plurality of small buoys are fixed on a certain length of the umbilical cable and used for bending.
2. The deepwater umbilical cord configuration as claimed in claim 1 wherein: the umbilical cable is in a configuration with a catenary at the top and is made of composite materials or steel.
3. A deepwater umbilical line configuration as claimed in claim 1 or 2 wherein: the arched buoy is of a semicircular shape or a cylindrical shape.
4. A deepwater umbilical line configuration as claimed in claim 1 or 2 wherein: the mooring cable is an anchor chain, a steel wire rope or a polyester cable.
5. A deepwater umbilical line configuration as claimed in claim 1 or 2 wherein: the anchor is a gravity anchor or a suction anchor.
6. A deepwater umbilical line configuration as claimed in claim 1 or 2 wherein: the small buoy is cylindrical.
7. A deepwater umbilical line configuration as claimed in claim 1 or 2 wherein: the floating platform is a floating production platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021010536.9U CN212135994U (en) | 2020-06-04 | 2020-06-04 | Novel deepwater umbilical cable linear configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021010536.9U CN212135994U (en) | 2020-06-04 | 2020-06-04 | Novel deepwater umbilical cable linear configuration |
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| Publication Number | Publication Date |
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| CN212135994U true CN212135994U (en) | 2020-12-11 |
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| CN202021010536.9U Active CN212135994U (en) | 2020-06-04 | 2020-06-04 | Novel deepwater umbilical cable linear configuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446519A (en) * | 2021-12-30 | 2022-05-06 | 明阳智慧能源集团股份公司 | Dynamic submarine cable structure of shallow water floating type wind generating set |
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2020
- 2020-06-04 CN CN202021010536.9U patent/CN212135994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446519A (en) * | 2021-12-30 | 2022-05-06 | 明阳智慧能源集团股份公司 | Dynamic submarine cable structure of shallow water floating type wind generating set |
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