CN112838882A - Data transmission system and method for underwater oil and gas production monitoring - Google Patents
Data transmission system and method for underwater oil and gas production monitoring Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 119
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- 238000012545 processing Methods 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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Abstract
The invention relates to a data transmission system and a data transmission method for monitoring underwater oil and gas production, which are characterized by comprising an underwater routing module and an umbilical cable terminal; an underwater power module and an underwater power module are arranged in the pressure-resistant sealed cavity, the underwater power module is respectively connected with an external load, the umbilical cable terminal and the underwater power module, and the underwater power module is respectively connected with the external load and the umbilical cable terminal; the underwater power supply module is used for supplying power to all power utilization parts and external loads of the data transmission system; the underwater power module is used for acquiring internal state data of the underwater power module and monitoring data of an external load; the umbilical cable terminal is used for receiving electric energy provided by the upper platform and feeding back internal state data of the underwater power supply module and monitoring data of external loads to the upper platform.
Description
Technical Field
The invention relates to a data transmission system and a data transmission method for monitoring underwater oil and gas production, and belongs to the field of underwater oil and gas production.
Background
Every link in the underwater oil and gas production work is vital, however, the underwater environment is complex, and in addition, the visibility of the water quality of an oil and gas production sea area is low, the specific environment of the underwater oil and gas production work cannot be predicted, and therefore, the underwater oil and gas production work brings a serious challenge. The underwater construction cost and period are very high, the high-reliability underwater data transmission system is particularly important for monitoring work and cost control, and an all-weather real-time online high-reliability monitoring system is needed to transparently monitor the underwater environment and realize detailed understanding of the underwater environment, so that an underwater production plan is reasonably arranged, and the safe development of the underwater production work is guaranteed.
The underwater oil and gas production system is fixed on the seabed near the underwater oil field, various manifolds are complicated, a plurality of blind spots exist in the inspection mode through an ROV (underwater robot), the efficiency is low, and abnormal conditions cannot be found in time. The traditional underwater data transmission system adopts a power line carrier mode, has narrow communication bandwidth and low speed, cannot meet the real-time transmission of a large amount of data generated by underwater equipment such as an underwater camera and the like, and cannot realize the on-line monitoring of an underwater environment. The prior art discloses a data transmission system for monitoring underwater oil and gas production, which divides an SRM (pressure-resistant sealed cavity), an SIIM (underwater connection system) and an SCM (underwater control module) into three sealed cavities, increases risk points and fault points, and is relatively complex in arrangement and recovery. Therefore, a data transmission system with large transmission data volume, high speed and high reliability and capable of real-time online monitoring is needed.
Disclosure of Invention
In view of the above problems, the present invention provides a data transmission system and method for monitoring underwater oil and gas production, which has large data transmission amount, high speed and high reliability.
In order to achieve the purpose, the invention adopts the following technical scheme: a data transmission system for underwater oil and gas production monitoring comprises an underwater routing module and an umbilical cable terminal;
an underwater power module and an underwater power module are arranged in the pressure-resistant sealed cavity, the underwater power module is respectively connected with an external load, the umbilical cable terminal and the underwater power module, and the underwater power module is respectively connected with the external load and the umbilical cable terminal;
the underwater power supply module is used for supplying power to all power utilization parts and external loads of the data transmission system;
the underwater power module is used for acquiring internal state data of the underwater power module and monitoring data of an external load;
the umbilical cable terminal is used for receiving electric energy provided by the upper-layer platform and feeding back internal state data of the underwater power supply module and monitoring data of an external load to the upper-layer platform.
Further, the number of the underwater power supply modules is 2.
Furthermore, the underwater routing module is a sealed cavity, and the underwater routing module is provided with a light wet plugging and unplugging watertight connector, at least two first electric wet plugging and unplugging watertight connectors, at least one second electric wet plugging and unplugging watertight connector and at least one third electric wet plugging and unplugging watertight connector;
the optical wet plugging and unplugging watertight connector is used for connecting the underwater power module;
the first electric wet plugging and unplugging watertight connector is used for connecting the corresponding underwater power supply module;
the second electro-wetting plug and unplug watertight connector and the third electro-wetting plug and unplug watertight connector are both used for connecting corresponding external loads.
Further, the underwater power module comprises a first cavity, and first to third switches, first to second communication controllers and first to second DSL modules are arranged in the first cavity;
the first switch is used for communicating with the third switch, the first communication controller and the first DSL module;
the second switch is used for communicating with the third switch, the second communication controller and the second DSL module;
the third switch is used for converting the single communication network port of the external load corresponding to the third switch into at least two communication network ports, and the converted communication network ports are respectively connected with the first switch and the second switch to form a backup of a communication link;
the first DSL module and the second DSL module are both used for carrying out digital subscriber line communication with an external load;
the first communication controller and the second communication controller are used for providing electric energy for all electric parts of the underwater power module and communicating with the underwater power module correspondingly.
Furthermore, the first cavity is provided with two optical dry-plugging and unplugging watertight connectors, at least two first electric dry-plugging and unplugging watertight connectors and at least two second electric dry-plugging and unplugging watertight connectors;
the first switch is connected with the second switch, the first switch and the second switch are also respectively connected with the third switch, the first communication controller and the second communication controller, the first switch and the first communication controller are respectively connected with the first DSL module, and the second switch and the second communication controller are respectively connected with the second DSL module;
the first switch and the second switch are respectively connected and correspond to the optical dry-plugging and water-drawing connector, the first communication controller and the second communication controller are connected and correspond to the underwater power supply module through corresponding to the first electric dry-plugging and water-drawing connector, the third switch is connected with one second electric dry-plugging and water-drawing connector, and the first DSL module and the second DSL module are connected with one second electric dry-plugging and water-drawing connector.
Further, the underwater power supply module comprises a second cavity, a power supply converter, first to fourth power supply detection control modules, an internal voltage conversion module, an external voltage conversion module and third to fourth communication controllers are arranged in the second cavity, wherein the number of the second power supply detection control module, the fourth power supply detection control module, the external voltage conversion module and the fourth communication controller is at least one;
the power converter is used for converting the power input by the umbilical cable terminal into a medium-voltage power;
the first power supply detection control module and the second power supply detection control module are used for controlling the output of a medium-voltage power supply of the power supply converter;
the internal voltage conversion module is used for converting a medium-voltage power supply into a low-voltage power supply required by the data transmission system and providing electric energy for each electric component of the underwater power supply module;
the third power supply detection control module is used for controlling the low-voltage power supply output by the internal voltage conversion module;
the third communication controller is used for processing the state signal of the internal power supply branch and issuing an instruction, and the internal power supply branch is used for providing electric energy for the underwater power module;
the external voltage conversion module is used for converting a medium-voltage power supply into a low-voltage power supply required by an external load;
the fourth power supply detection control module is used for controlling the low-voltage power supply output by the external voltage conversion module;
the fourth communication controller is used for processing the state signal of the external power supply branch and issuing an instruction, and the external power supply branch is used for providing electric energy for an external load.
Furthermore, a third power-trunk plug-and-unplug watertight connector and at least two fourth power-trunk plug-and-unplug watertight connectors are arranged on the second cavity;
the input end of the power converter is connected with the third power plug and unplug watertight connector, and the output end of the power converter is connected with the first power detection control module and the second power detection control module in parallel; the first to fourth power supply detection control modules, the internal voltage conversion module, the external voltage conversion module and the third to fourth communication controllers are connected with each other;
the first power supply detection control module is connected with the corresponding fourth dry-plugging and unplugging watertight connector through the internal voltage conversion module, the third power supply detection control module and the third communication controller in sequence to form an internal power supply branch circuit;
the second power supply detection control module is connected with the fourth communication controller through the corresponding external voltage conversion module, the fourth power supply detection control module and the fourth communication controller to form an external power supply branch circuit.
A data transmission method for subsea oil and gas production monitoring, comprising the following:
1) the electric energy required by the data transmission system is provided to the underwater power supply module by the upper platform through the umbilical cable terminal;
2) the underwater power supply module processes the electric energy and then supplies power to all power utilization parts and external loads of the data transmission system;
3) monitoring data of an external load and internal state data of the underwater power supply module are both sent to the underwater power module;
4) the underwater power module converts the data of the electric signals into the data of the optical signals and sends the data to the upper-layer platform through the umbilical cable terminal.
Further, the specific process of step 2) is as follows:
2.1) the power converter converts the power input by the upper platform into a medium-voltage power, controls the output of the medium-voltage power through the first power detection control module and the second power detection control module, and respectively outputs the medium-voltage power to the internal voltage conversion module and the external voltage conversion module;
2.2) the internal voltage conversion module converts the medium-voltage power supply into a low-voltage power supply required by the power supply of the data transmission system, and provides electric energy for each electric component in the underwater power supply module through the third power supply detection control module, and the third communication controller processes the state signal of the internal power supply branch and gives an instruction;
2.3) the external voltage conversion module converts the medium-voltage power supply into a low-voltage power supply required by the external load power supply, and the fourth power supply detection control module and the fourth communication controller provide electric energy for the external load through the fourth electric dry-plugging and unplugging watertight connector and the second electric wet-plugging and unplugging watertight connector;
and 2.4) the third communication controller and the fourth communication controller also supply electric energy to each electric component in the underwater power module through the fourth electric trunk plug and unplug watertight connector and the first electric trunk plug and unplug watertight connector and through the first communication controller and the second communication controller.
Further, the specific process of step 3) is as follows:
3.1) monitoring data of an external load supporting the DSL communication mode enters the first DSL module and the second DSL module through the third electro-wet plugging and unplugging watertight connector and the second electro-dry plugging and unplugging watertight connector;
3.2) the first DSL module sends the monitoring data of the external load to the first exchanger, and the second DSL module sends the monitoring data of the external load to the second exchanger;
3.3) monitoring data of an external load supporting an Ethernet communication mode enters a third switch through a third electro-wet plug and unplug watertight connector and a second electro-dry plug and unplug watertight connector, and the monitoring data of the external load is forwarded to the first switch and the second switch through the third switch;
3.4) the internal state data of the underwater power supply module enters the first communication controller and the second communication controller through the third communication controller and the fourth communication controller and corresponding to the fourth electric trunk plug and unplug watertight connector and the first electric trunk plug and unplug watertight connector;
3.5) the first communication controller and the second communication controller respectively send the internal state data to the first switch and the second switch.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the underwater routing module comprises an underwater power module and an underwater power module, and the underwater power modules are mutually completely backed up to provide reliable electric energy for the underwater power module.
2. The underwater power module can receive internal state data of the underwater power module and monitoring data of an external load, and uploads the internal state data and the monitoring data to an upper-layer platform through the umbilical cable terminal, so that reliable real-time transmission of the underwater monitoring data is realized.
3. The power supply and communication link of the invention is backup set, the system reliability is high, the data transmission quantity is large, the speed is high, the underwater oil gas production work can be monitored in all directions, the safe development of the underwater oil gas production is ensured, and the invention is widely applied to the field of the underwater oil gas production.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a data transmission system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an underwater power module 2 provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an underwater power module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "transverse", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements, and unless otherwise stated have no special meaning and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1, the present embodiment provides a data transmission system for monitoring underwater oil and gas production, which includes an underwater routing module (SRM)1, an underwater power module (SEM)2, a first underwater power module (SPM)3, a second underwater power module (SPM)4, and an umbilical cable terminal 5, where the underwater routing module 1 is a pressure-resistant sealed cavity.
An underwater power module 2, a first underwater power module 3 and a second underwater power module 4 are arranged in the underwater routing module 1.
The left side of the underwater routing module 1 is provided with a light wet plugging and unplugging watertight connector 1-1 and two first electric wet plugging and unplugging watertight connectors 1-2, the right side of the underwater routing module 1 is provided with at least one second electric wet plugging and unplugging watertight connector 1-3, and the underwater routing module 1 is also provided with at least one third electric wet plugging and unplugging watertight connector 1-4.
The left side of the underwater power module 2 is provided with two optical trunk plug and pull watertight connectors 2-1, and the right side of the underwater power module 2 is provided with two first electric trunk plug and pull watertight connectors 2-2; corresponding to the positions and the number of the third electro-wet plugging and unplugging watertight connectors 1-4, at least one second electro-dry plugging and unplugging watertight connector 2-3 is further arranged on the underwater power module 2.
The left sides of the first underwater power module 3 and the second underwater power module 4 are provided with a third electric dry-plugging and unplugging watertight connector 3-1, and the right sides of the first underwater power module 3 and the second underwater power module 4 are provided with at least two fourth electric dry-plugging and unplugging watertight connectors 3-2.
The two light dry-plugging and unplugging watertight connectors 2-1 are connected with the light wet-plugging watertight connector 1-1 in parallel, and the light wet-plugging watertight connector 1-1 is connected with an umbilical cable terminal 5 through a light watertight cable 6 and used for transmitting internal state data and monitoring data of external loads of the first underwater power supply module 3 and the second underwater power supply module 4 to the umbilical cable terminal 5.
A first electric trunk plug and unplug watertight connector 2-2 is connected with a fourth electric trunk plug and unplug watertight connector 3-2 of the first underwater power module 3, and another first electric trunk plug and unplug watertight connector 2-2 is connected with a fourth electric trunk plug and unplug watertight connector 3-2 of the second underwater power module 4, and is used for providing electric energy for the underwater power module 2 through the first underwater power module 3 and the second underwater power module 4 and sending internal state data to the underwater power module 2, and communicating with the underwater power module 2. The other fourth electric dry-plug and unplugging watertight connectors 3-2 of the first underwater power module 3 and the second underwater power module 4 are connected in parallel with the corresponding second electric wet-plug and unplugging watertight connectors 1-3 and used for providing electric energy for each external load, namely the underwater observation equipment, through the first underwater power module 3 and the second underwater power module 4.
Each second electric dry-plug and unplugging watertight connector 2-3 is connected with a corresponding external load through a corresponding third electric wet-plug and unplugging watertight connector 1-4 respectively, and is used for sending monitoring data of the external load to the underwater power module 2 and communicating with each external load through the underwater power module 2.
Each third electric dry-plugging and unplugging watertight connector 3-1 is connected with an umbilical cable terminal 5 through an electric watertight cable 7 through a corresponding first electric wet-plugging and unplugging watertight connector 1-2, the umbilical cable terminal 5 is connected with an upper platform through an umbilical cable 8, the upper platform is used for providing electric energy for the first underwater power module 3 and the second underwater power module 4 through the umbilical cable terminal 5, and transmitting internal state data and monitoring data of external loads of the first underwater power module 3 and the second underwater power module 4 to the upper platform.
In a preferred embodiment, as shown in FIG. 2, the underwater power module 2 comprises a first cavity 2-4, two optical trunk plug and unplug watertight connectors 2-1 are arranged on one side of the first cavity 2-4, two first electric trunk plug and unplug watertight connectors 2-2 and at least two second electric trunk plug and unplug watertight connectors 2-3 are arranged on the other side of the first cavity 2-4, first to third switches 2-5 to 2-7, first to second communication controllers 2-8 to 2-9 and first to second DSL (digital subscriber line) modules 2-10 to 2-11 are arranged in the first cavity 2-4, the first switch 2-5 and the second switch 2-6 are network management type switches, and the third switch 2-7 is a non-network management type switch.
The first switch 2-5 and the second switch 2-6 are connected with the corresponding optical dry plugging and unplugging watertight connector 2-1 through optical connection lines respectively, the first switch 2-5 is connected with the second switch 2-6 and is in a backup relationship with each other, the first switch 2-5 and the second switch 2-6 are further connected with the third switch 2-7, the first communication controller 2-8 and the second communication controller 2-9 respectively, the first switch 2-5 and the first communication controller 2-8 are connected with the first DSL module 2-10 respectively, and the second switch 2-6 and the second communication controller 2-9 are connected with the second DSL module 2-11 respectively. The first communication controller 2-8 is connected with the first underwater power supply module 3 through the corresponding CAN/serial port by the corresponding first electric trunk plug and unplug watertight connector 2-2, the second communication controller 2-9 is connected with the second underwater power supply module 4 through the corresponding CAN/serial port by the corresponding first electric trunk plug and unplug watertight connector 2-2, the third switch 2-7 is connected with the second electric trunk plug and unplug watertight connector 2-3, and the first DSL module 2-10 and the second DSL module 2-11 are connected with the second electric trunk plug and unplug watertight connector 2-3.
The first switch 2-5 is arranged to communicate with the third switch 2-7, the first communication controller 2-8 and the first DSL module 2-10.
The second switch 2-6 is arranged to communicate with a third switch 2-7, a second communication controller 2-9 and a second DSL module 2-11.
The first DSL module 2-10 and the second DSL module 2-11 are both used for carrying out digital subscriber line communication with an external load, and the first DSL module 2-10 and the second DSL module 2-11 are in backup relation with each other.
The first communication controller 2-8 and the second communication controller 2-9 are used for providing electric energy for the first to third switches 2-7 and the first to second DSL modules 2-11 and communicating with the first underwater power supply module 3 and the second underwater power supply module 4.
The third exchanger 2-7 is used for converting the single communication network port of the external load connected with the corresponding second electric trunk plug and unplugging watertight connector 2-3 into at least two communication network ports, and the converted communication network ports are respectively connected with the first exchanger 2-5 and the second exchanger 2-6 to form backup of a communication link.
In a preferred embodiment, as shown in fig. 3, the first underwater power module 3 and the second underwater power module 4 each include a second cavity 3-3, one side of each second cavity 3-3 is provided with a third power dry-plug and unplugging watertight connector 3-1, the other side of each second cavity 3-3 is provided with at least two fourth power dry-plug and unplugging watertight connectors 3-2, each second cavity 3-3 is internally provided with a power converter 3-4, first to fourth power detection control modules 3-5 to 3-8, an internal voltage conversion module 3-9, an external voltage conversion module 3-10 and third to fourth communication controllers 3-11 to 3-12, wherein the second power detection control module 3-6, the fourth power detection control module 3-8, the third to fourth communication controller 3-11 to 3-12, The number of the external voltage conversion modules 3-10 and the number of the fourth communication controllers 3-12 are determined according to the number of external loads, and the first to fourth power detection control modules 3-5 to 3-8, the internal voltage conversion modules 3-9, the external voltage conversion modules 3-10 and the third to fourth communication controllers 3-11 to 3-12 in each second cavity 3-3 are connected with one another.
The input end of each power supply converter 3-4 is connected with a corresponding third power dry plugging and unplugging watertight connector 3-1, and the output end of each power supply converter 3-4 is connected in parallel with a corresponding first power supply detection control module 3-5 and a corresponding second power supply detection control module 3-6. Each first power supply detection control module 3-5 is connected with a corresponding fourth electric dry plugging and unplugging watertight connector 3-2 through a corresponding CAN/serial port to form an internal power supply branch circuit sequentially through a corresponding internal voltage conversion module 3-9, a third power supply detection control module 3-7 and a third communication controller 3-11; each second power supply detection control module 3-6 is connected with a corresponding fourth electric dry plugging and unplugging watertight connector 3-2 through a corresponding CAN/serial port in sequence through a corresponding external voltage conversion module 3-10, a fourth power supply detection control module 3-8 and a fourth communication controller 3-12 to form an external power supply branch.
The power converter 3-4 is used to convert the power input from the umbilical terminal 5 to a medium voltage power.
The first power supply detection control module 3-5 and the second power supply detection control module 3-6 are used for controlling the output of a corresponding power supply converter 3-4 medium-voltage power supply (190-550 VAC).
The internal voltage conversion module 3-9 is used for converting the medium-voltage power supply into a low-voltage power supply required by the data transmission system and providing electric energy for each electric component in the corresponding second cavity 3-3.
The third power detection control module 3-7 is used for controlling a low-voltage power supply (0-24 VAC) output by the corresponding internal voltage conversion module 3-9.
The third communication controller 3-11 is used for processing the state signal of the internal power supply branch circuit and issuing an instruction, wherein the state signal comprises voltage, current, temperature and the like, the processing of the state signal comprises filtering, operation and the like, and the instruction is an instruction issued automatically and an instruction issued by an upper platform and comprises instructions of on-off control, acquisition frequency control and the like. The internal power supply branch is used for providing electric energy for the underwater power module 2 by connecting the first power trunk plug and unplugging watertight connector 2-2.
The external voltage conversion modules 3-10 are used to convert the medium voltage power supply into the low voltage power supply required for the external load supply.
The fourth power detection control module 3-8 is used for controlling the low-voltage power output by the corresponding external voltage conversion module 3-10.
The fourth communication controller 3-12 is used for processing the status signal of the external power supply branch and giving an instruction. The external power supply branch is used for connecting the corresponding second electro-wetting plug-pull watertight connector 1-3 to provide electric energy for an external load.
In a preferred embodiment, the core number of the first electric dry-plugging and unplugging watertight connector 2-2, the second electric dry-plugging and unplugging watertight connector 2-3, the third electric dry-plugging and unplugging watertight connector 3-1 and the fourth electric dry-plugging and unplugging watertight connector 3-2, the core number of the electric wet-plugging and unplugging watertight connector and the number of external loads are determined according to the actual requirements of the system.
In a preferred embodiment, the first to second communication controllers 2-8 to 2-9 and the third to fourth communication controllers 3-11 to 3-12 are provided with serial ports, and the external loads capable of transmitting data through the serial ports are supported.
Example 2
The embodiment provides a data transmission method for monitoring underwater oil and gas production, which comprises the following steps:
1) the electric energy required by the data transmission system is provided to the first underwater power module 3 and the second underwater power module 4 by the upper platform through the umbilical cable 8 and the umbilical cable terminal 5, the first electric wet plugging and unplugging watertight connector 1-2 and the third electric dry plugging and unplugging watertight connector 3-1.
2) The first underwater power supply module 3 and the second underwater power supply module 4 process the electric energy provided by the upper platform and then supply power to all power utilization parts and external loads of the data transmission system, and the method specifically comprises the following steps:
2.1) the power converter 3-4 converts the power input by the upper platform into a medium voltage power, and the first power detection control module 3-5 and the second power detection control module 3-6 control the output of the medium voltage power and respectively output the medium voltage power to the internal voltage conversion module 3-9 and the external voltage conversion module 3-10.
2.2) the internal voltage conversion module 3-9 converts the medium voltage power supply into a low voltage power supply required by the data transmission system, and provides electric energy for each electric component in the corresponding second cavity 3-3 through the third power detection control module 3-7, and the third communication controller 3-11 processes the state signal of the internal power supply branch and gives an instruction.
2.3) the external voltage conversion module 3-10 converts the medium voltage power supply into a low voltage power supply required by the external load power supply, the fourth power supply detection control module 3-8 and the fourth communication controller 3-12 provide electric energy for the external load through the fourth electric dry-plug and water-proof connector 3-2 and the second electric wet-plug and water-proof connector 1-3, the fourth communication controller 3-12 processes the state signals of the external power supply branches and issues instructions, and each external load corresponds to one external power supply branch.
2.4) the third communication controller 3-11 and the fourth communication controller 3-12 also supply electric energy to each electric component in the underwater power module 2 through the fourth electric trunk plug and unplug watertight connector 3-2 and the first electric trunk plug and unplug watertight connector 2-2 through the CAN/serial port and through the first communication controller 2-8 and the second communication controller 2-9.
3) The monitoring data of external load are inserted and pulled out the watertight connector 1-4 through the third electricity and are inserted and pull out watertight connector 2-3 through the second electricity futilely and send to power module 2 under water, and the inside state data of first power module 3 under water and second power module 4 under water are inserted and are pulled out watertight connector 3-2 and first electricity futilely and pull out watertight connector 2-2 through the fourth electricity and send to power module 2 under water, specifically do:
3.1) the monitoring data of the external load supporting the DSL communication mode enters the first DSL module 2-10 and the second DSL module 2-11 through the third electro-wet plug and unplug watertight connector 1-4 and the second electro-dry plug and unplug watertight connector 2-3.
3.2) the first DSL module 2-10 sends the monitoring data of the external load to the first exchange 2-5 and the second DSL module 2-11 sends the monitoring data of the external load to the second exchange 2-6.
3.3) monitoring data of external loads supporting the Ethernet communication mode enter a third switch 2-7 through a third electric wet plug and unplug watertight connector 1-4 and a second electric dry plug and unplug watertight connector 2-3, and the monitoring data of the external loads are forwarded to a first switch 2-5 and a second switch 2-6 through the third switch 2-7.
And 3.4) the internal state data of the first underwater power supply module 3 and the second underwater power supply module 4 pass through the corresponding third communication controller 3-11 and the corresponding fourth communication controller 3-12 and enter the first communication controller 2-8 and the second communication controller 2-9 through the corresponding fourth electric trunk plug and unplug watertight connector 3-2 and the first electric trunk plug and unplug watertight connector 2-2.
3.5) the first communication controller 2-8 and the second communication controller 2-9 send the internal status data to the first switch 2-5 and the second switch 2-6, respectively.
4) The underwater power module 2 converts the data of the electric signal into the data of the optical signal, and sends the data of the optical signal to an upper platform through the optical dry-plug and the optical wet-plug watertight connector 2-1, the optical wet-plug watertight connector 1-1 and the umbilical cable terminal 5:
the first exchanger 2-5 and the second exchanger 2-6 convert the data of the electrical signals into the data of the optical signals and transmit the data of the optical signals to the upper platform through the optical dry plug and unplug watertight connector 2-1 and the optical wet plug and unplug watertight connector 1-1 and the umbilical cable terminal 5.
The above embodiments are only used for illustrating the present invention, and the structure, connection mode, manufacturing process, etc. of the components may be changed, and all equivalent changes and modifications performed on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.
Claims (10)
1. A data transmission system for monitoring underwater oil and gas production is characterized by comprising an underwater routing module and an umbilical cable terminal;
an underwater power module and an underwater power module are arranged in the pressure-resistant sealed cavity, the underwater power module is respectively connected with an external load, the umbilical cable terminal and the underwater power module, and the underwater power module is respectively connected with the external load and the umbilical cable terminal;
the underwater power supply module is used for supplying power to all power utilization parts and external loads of the data transmission system;
the underwater power module is used for acquiring internal state data of the underwater power module and monitoring data of an external load;
the umbilical cable terminal is used for receiving electric energy provided by the upper-layer platform and feeding back internal state data of the underwater power supply module and monitoring data of an external load to the upper-layer platform.
2. A data transmission system for subsea oil and gas production monitoring according to claim 1, wherein the number of subsea power modules is 2.
3. The data transmission system for underwater oil and gas production monitoring of claim 2, wherein the underwater routing module is a sealed cavity, and a light wet plugging and unplugging watertight connector, at least two first electric wet plugging and unplugging watertight connectors, at least one second electric wet plugging and unplugging watertight connector and at least one third electric wet plugging and unplugging watertight connector are arranged on the underwater routing module;
the optical wet plugging and unplugging watertight connector is used for connecting the underwater power module;
the first electric wet plugging and unplugging watertight connector is used for connecting the corresponding underwater power supply module;
the second electro-wetting plug and unplug watertight connector and the third electro-wetting plug and unplug watertight connector are both used for connecting corresponding external loads.
4. The data transmission system for subsea oil and gas production monitoring of claim 3, wherein said subsea power module comprises a first cavity, said first cavity having disposed therein first-third switches, first-second communication controllers, and first-second DSL modules;
the first switch is used for communicating with the third switch, the first communication controller and the first DSL module;
the second switch is used for communicating with the third switch, the second communication controller and the second DSL module;
the third switch is used for converting the single communication network port of the external load corresponding to the third switch into at least two communication network ports, and the converted communication network ports are respectively connected with the first switch and the second switch to form a backup of a communication link;
the first DSL module and the second DSL module are both used for carrying out digital subscriber line communication with an external load;
the first communication controller and the second communication controller are used for providing electric energy for all electric parts of the underwater power module and communicating with the underwater power module correspondingly.
5. The data transmission system for monitoring underwater oil and gas production according to claim 4, wherein the first cavity is provided with two optical dry-plugging and unplugging watertight connectors, at least two first electric dry-plugging and unplugging watertight connectors and at least two second electric dry-plugging and unplugging watertight connectors;
the first switch is connected with the second switch, the first switch and the second switch are also respectively connected with the third switch, the first communication controller and the second communication controller, the first switch and the first communication controller are respectively connected with the first DSL module, and the second switch and the second communication controller are respectively connected with the second DSL module;
the first switch and the second switch are respectively connected and correspond to the optical dry-plugging and water-drawing connector, the first communication controller and the second communication controller are connected and correspond to the underwater power supply module through corresponding to the first electric dry-plugging and water-drawing connector, the third switch is connected with one second electric dry-plugging and water-drawing connector, and the first DSL module and the second DSL module are connected with one second electric dry-plugging and water-drawing connector.
6. The data transmission system for monitoring underwater oil and gas production according to claim 5, wherein the underwater power supply module comprises a second cavity, and a power converter, first to fourth power supply detection control modules, an internal voltage conversion module, an external voltage conversion module and third to fourth communication controllers are arranged in the second cavity, wherein the number of the second power supply detection control module, the fourth power supply detection control module, the external voltage conversion module and the fourth communication controller is at least one;
the power converter is used for converting the power input by the umbilical cable terminal into a medium-voltage power;
the first power supply detection control module and the second power supply detection control module are used for controlling the output of a medium-voltage power supply of the power supply converter;
the internal voltage conversion module is used for converting a medium-voltage power supply into a low-voltage power supply required by the data transmission system and providing electric energy for each electric component of the underwater power supply module;
the third power supply detection control module is used for controlling the low-voltage power supply output by the internal voltage conversion module;
the third communication controller is used for processing the state signal of the internal power supply branch and issuing an instruction, and the internal power supply branch is used for providing electric energy for the underwater power module;
the external voltage conversion module is used for converting a medium-voltage power supply into a low-voltage power supply required by an external load;
the fourth power supply detection control module is used for controlling the low-voltage power supply output by the external voltage conversion module;
the fourth communication controller is used for processing the state signal of the external power supply branch and issuing an instruction, and the external power supply branch is used for providing electric energy for an external load.
7. The data transmission system for monitoring underwater oil and gas production of claim 6, wherein a third electric trunk plug and unplug watertight connector and at least two fourth electric trunk plug and unplug watertight connectors are arranged on the second cavity;
the input end of the power converter is connected with the third power plug and unplug watertight connector, and the output end of the power converter is connected with the first power detection control module and the second power detection control module in parallel; the first to fourth power supply detection control modules, the internal voltage conversion module, the external voltage conversion module and the third to fourth communication controllers are connected with each other;
the first power supply detection control module is connected with the corresponding fourth dry-plugging and unplugging watertight connector through the internal voltage conversion module, the third power supply detection control module and the third communication controller in sequence to form an internal power supply branch circuit;
the second power supply detection control module is connected with the fourth communication controller through the corresponding external voltage conversion module, the fourth power supply detection control module and the fourth communication controller to form an external power supply branch circuit.
8. A data transmission method for subsea oil and gas production monitoring according to any of claims 1-7, characterized in that it comprises the following:
1) the electric energy required by the data transmission system is provided to the underwater power supply module by the upper platform through the umbilical cable terminal;
2) the underwater power supply module processes the electric energy and then supplies power to all power utilization parts and external loads of the data transmission system;
3) monitoring data of an external load and internal state data of the underwater power supply module are both sent to the underwater power module;
4) the underwater power module converts the data of the electric signals into the data of the optical signals and sends the data to the upper-layer platform through the umbilical cable terminal.
9. The data transmission method for monitoring underwater oil and gas production according to claim 8, wherein the specific process of the step 2) is as follows:
2.1) the power converter converts the power input by the upper platform into a medium-voltage power, controls the output of the medium-voltage power through the first power detection control module and the second power detection control module, and respectively outputs the medium-voltage power to the internal voltage conversion module and the external voltage conversion module;
2.2) the internal voltage conversion module converts the medium-voltage power supply into a low-voltage power supply required by the power supply of the data transmission system, and provides electric energy for each electric component in the underwater power supply module through the third power supply detection control module, and the third communication controller processes the state signal of the internal power supply branch and gives an instruction;
2.3) the external voltage conversion module converts the medium-voltage power supply into a low-voltage power supply required by the external load power supply, and the fourth power supply detection control module and the fourth communication controller provide electric energy for the external load through the fourth electric dry-plugging and unplugging watertight connector and the second electric wet-plugging and unplugging watertight connector;
and 2.4) the third communication controller and the fourth communication controller also supply electric energy to each electric component in the underwater power module through the fourth electric trunk plug and unplug watertight connector and the first electric trunk plug and unplug watertight connector and through the first communication controller and the second communication controller.
10. The data transmission method for monitoring underwater oil and gas production according to claim 9, wherein the specific process of the step 3) is as follows:
3.1) monitoring data of an external load supporting the DSL communication mode enters the first DSL module and the second DSL module through the third electro-wet plugging and unplugging watertight connector and the second electro-dry plugging and unplugging watertight connector;
3.2) the first DSL module sends the monitoring data of the external load to the first exchanger, and the second DSL module sends the monitoring data of the external load to the second exchanger;
3.3) monitoring data of an external load supporting an Ethernet communication mode enters a third switch through a third electro-wet plug and unplug watertight connector and a second electro-dry plug and unplug watertight connector, and the monitoring data of the external load is forwarded to the first switch and the second switch through the third switch;
3.4) the internal state data of the underwater power supply module enters the first communication controller and the second communication controller through the third communication controller and the fourth communication controller and corresponding to the fourth electric trunk plug and unplug watertight connector and the first electric trunk plug and unplug watertight connector;
3.5) the first communication controller and the second communication controller respectively send the internal state data to the first switch and the second switch.
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Address after: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Country or region after: China Patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: Jiangsu Hengtong Huahai Technology Co.,Ltd. Address before: 100010 No. 25 North Main Street, Dongcheng District, Beijing, Chaoyangmen Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Country or region before: China Patentee before: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee before: JIANGSU HENGTONG MARINE CABLE SYSTEMS Co.,Ltd. |