CN214154992U - Wet-type static cluster submarine cable power supply device for offshore oil platform - Google Patents
Wet-type static cluster submarine cable power supply device for offshore oil platform Download PDFInfo
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- CN214154992U CN214154992U CN202120226724.3U CN202120226724U CN214154992U CN 214154992 U CN214154992 U CN 214154992U CN 202120226724 U CN202120226724 U CN 202120226724U CN 214154992 U CN214154992 U CN 214154992U
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Abstract
A static sea cable power supply unit tied in a bundle of offshore oil platform wet-type includes: the supporting platform is connected with a wellhead platform at one end opposite to the supporting platform through a cluster submarine cable, wherein the supporting platform is respectively provided with a plurality of medium-voltage frequency converters and step-up transformers; the well head platform is respectively provided with a step-down transformer, a low-voltage distribution board, a public device and a plurality of underground electric submersible pumps, and the step-down transformer, the low-voltage distribution board and the public device are connected in series. The utility model can not only utilize and rely on the capability of the platform to the utmost extent, greatly reduce the area and weight of the upper module of the wellhead platform and the scale of the platform, greatly reduce the engineering investment, and enable the development project of the marginal oil field of the Bohai oil field to reach the development threshold; moreover, the method can be applied to a plurality of subsequent marginal oil field development projects, and technical support is provided for increasing storage and increasing production.
Description
Technical Field
The utility model belongs to the technical field of the ocean engineering, especially, relate to the static submarine cable power supply unit tied in a bundle of offshore oil platform wet-type.
Background
At present, with the reduction of the integrally-installed oil field of the Bohai sea, the action of the marginal oil field is continuously highlighted, and the development process of the marginal oil field is also continuously accelerated. According to statistics, the marginal oil field reserves of Bohai sea in research and development are increased by nearly 7.8 times compared with the marginal oil field reserves in production. From the situation of development and construction of marginal oil fields in recent years, the greatest restriction of development of marginal oil fields is the remarkable increase of engineering investment. To reduce the threshold of the available boundary of marginal oil field reserves, only further reduce the engineering development investment, and the most direct method is to reduce the size of the platform as much as possible.
In offshore marginal oil field development, a power supply scheme is of great importance, and directly determines the scale of a platform and the engineering investment. However, most marginal oil fields are unmanned platforms, and a conventional power supply scheme of the marginal oil fields is that a submarine cable is usually laid to supply power to a target platform, and independent electric rooms such as a transformer room, a power distribution room and an electric submersible pump control room are arranged on the target platform; therefore, the occupied area is large, and thus, the platform is large in scale; moreover, construction resources are required to be completed by large ships, and investment is increased; meanwhile, as the conventional platform is attended, the operation condition of the electrical system can be timely mastered through regular inspection of production personnel, and hidden operating troubles of the electrical system can be timely discovered; and unmanned platforms are largely lacking in this regard.
In order to solve the technical problems, if a conventional submarine cable power supply scheme is adopted in a marginal oil field development project, an isolation transformer needs to be newly added on a supporting platform, and a wellhead platform is supplied with power through a conventional single-bundle 3-core composite submarine cable; and a main transformer and corresponding equipment such as medium-voltage distribution, low-voltage distribution, an electric submersible pump frequency converter, an electric submersible pump transformer and the like are required to be arranged on the wellhead platform, and matched rooms such as a main switch room/electric submersible pump control room, a main transformer room/electric submersible pump transformer room, a central control room, a carbon dioxide room, a battery room and the like are arranged. Compared with the aspects of electrical rooms, electrical equipment, submarine cable cost, post-maintenance and the like, the newly-added electrical rooms, the newly-added instrument control equipment and the post-maintenance workload of the conventional submarine cable power supply scheme are more, and therefore the engineering cost is higher.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a static submarine cable power supply unit tied in a bundle of offshore oil platform wet-type to solve newly-increased electric room and equipment more, the great technical problem of later maintenance work load.
In order to achieve the above object, the utility model discloses a static sea cable power supply unit tied in a bundle of offshore oil platform wet-type's concrete technical scheme as follows:
a static sea cable power supply unit tied in a bundle of offshore oil platform wet-type includes: a supporting platform and a wellhead platform connected with one end of the supporting platform through a cluster submarine cable, wherein,
a plurality of medium voltage frequency converters and step-up transformers are respectively arranged on the supporting platform;
the well head platform is respectively provided with a step-down transformer, a low-voltage distribution board, a public device and a plurality of underground electric submersible pumps, and the step-down transformer, the low-voltage distribution board and the public device are connected in series.
Further, the bundled submarine cables are 7 wet-type static bundled submarine cables; two ends of the bunched submarine cable are respectively landed on the supporting platform and the wellhead platform.
Furthermore, the step-up transformer is connected with a step-down transformer on the wellhead platform through a cluster submarine cable, so that the high-voltage side of the step-up transformer on the supporting platform supplies power to the step-down transformer on the wellhead platform.
Furthermore, the plurality of medium voltage frequency converters are respectively connected with the electric submersible pump through the cluster submarine cables and respectively supply power to the electric submersible pump.
Further, the low voltage panel supplies power to the utility.
The utility model discloses a static sea cable power supply unit tied in a bundle of offshore oil platform wet-type has following advantage:
the utility model discloses can utilize and rely on the ability of platform to furthest, it only needs to increase a middle-voltage inverter that is used for arranging well head platform electric submersible pump between electricity on well head platform newly;
the utility model can eliminate heating and ventilation equipment, most of electrical instrument control equipment and matched rooms on the wellhead platform, and greatly reduce the area and weight of the upper chunk of the wellhead platform and the scale of the supporting platform;
the utility model reduces the engineering investment, saves the investment by about 3000 ten thousand yuan, and enables the Bohai oilfield marginal oilfield development project to reach the development threshold;
fourth the utility model discloses can realize using in follow-up a plurality of marginal oil field development project, for increasing to store up to produce and provide technical support, for national energy safety has contributed strength.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The notation in the figure is:
1. supporting a platform; 2. bundling a submarine cable; 3. a wellhead platform; 4. a step-up transformer; 5. a medium voltage frequency converter; 6. a step-down transformer; 7. a low voltage switchboard; 8. a utility device; 9. an electric submersible pump.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model comprises: the supporting platform 1 is connected with a wellhead platform 3 at one end opposite to the supporting platform 1 through a cluster submarine cable 2, wherein the supporting platform 1 is respectively provided with a plurality of medium-voltage frequency converters 5 (four in the embodiment) and step-up transformers 4; the bunched submarine cable 2 is a 7-bunch wet-type static bunched submarine cable; the wellhead platform 3 is respectively provided with a step-down transformer 6, a low-voltage distribution board 7, a public device 8 and a plurality of underground electric submersible pumps 9 (four in the embodiment), and the step-down transformer 6, the low-voltage distribution board 7 and the public device 8 are connected in series.
Two ends of the bunched submarine cable 2 are respectively landed on the supporting platform 1 and the wellhead platform 3.
The step-up transformer 4 is connected with a step-down transformer 6 on the wellhead platform 3 through a cluster submarine cable 2, so that the high-voltage side of the step-up transformer 4 on the supporting platform 1 supplies power to the step-down transformer 6 on the wellhead platform 3. The plurality of medium voltage frequency converters 5 are respectively connected with the electric submersible pump 9 through the cluster submarine cable 2.
The step-down transformer 6 on the wellhead platform 3 supplies power to the low-voltage distribution board 7 on the wellhead platform 3.
A low voltage switchboard 7 on the wellhead platform 3 supplies electrical power to utility devices 8 on the wellhead platform 3.
The output side of the medium voltage frequency converter 5 supplies power to an electric submersible pump 9 on the wellhead platform 3 through the cluster submarine cable 2. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The supporting platform, the cluster submarine cable, the wellhead platform, the boosting transformer, the medium-voltage frequency converter, the step-down transformer, the low-voltage distribution board and the electric submersible pump are the prior art, and the unexplained technology is the prior art, so that the details are not repeated.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (5)
1. The utility model provides an offshore oil platform wet-type static sea cable power supply unit tied in a bundle which characterized in that includes: a supporting platform and a wellhead platform connected with one end of the supporting platform through a cluster submarine cable, wherein,
a plurality of medium voltage frequency converters and step-up transformers are respectively arranged on the supporting platform;
the well head platform is respectively provided with a step-down transformer, a low-voltage distribution board, a public device and a plurality of underground electric submersible pumps, and the step-down transformer, the low-voltage distribution board and the public device are connected in series.
2. The offshore oil platform wet static bundled submarine cable power supply unit according to claim 1, wherein said bundled submarine cable is 7 wet static bundled submarine cables; two ends of the bunched submarine cable are respectively landed on the supporting platform and the wellhead platform.
3. The offshore oil platform wet static bundled submarine cable power supply unit according to claim 1, wherein the step-up transformer is connected to a step-down transformer on the wellhead platform through a bundled submarine cable, such that the step-up transformer high voltage side on the depending platform supplies power to the step-down transformer on the wellhead platform.
4. The offshore oil platform wet static bundled submarine cable power supply device according to claim 1, wherein the plurality of medium voltage frequency converters are respectively connected with the electric submersible pump through the bundled submarine cable and respectively supply power to the electric submersible pump.
5. The offshore oil platform wet static bundled submarine cable power supply unit according to claim 1, wherein said low voltage switchboard powers utilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120226724.3U CN214154992U (en) | 2021-01-27 | 2021-01-27 | Wet-type static cluster submarine cable power supply device for offshore oil platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120226724.3U CN214154992U (en) | 2021-01-27 | 2021-01-27 | Wet-type static cluster submarine cable power supply device for offshore oil platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214154992U true CN214154992U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120226724.3U Active CN214154992U (en) | 2021-01-27 | 2021-01-27 | Wet-type static cluster submarine cable power supply device for offshore oil platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN214154992U (en) |
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2021
- 2021-01-27 CN CN202120226724.3U patent/CN214154992U/en active Active
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