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Self-elevating MOPU economical power system

A power system and economical technology, applied in the field of offshore marine engineering, can solve the problems of unsuitable construction cost and increase project construction cost, etc., and achieve the effects of reducing production and processing costs, saving space and layout, and increasing flexibility

Pending Publication Date: 2019-04-16
上海中远船务工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The amount of small and medium-sized oil and gas production is far less abundant than that of the deep sea. If a fixed oil production platform is used, it will lose the meaning of operation after a period of operation is completed and needs to be dismantled, leaving marine debris, which is gradually eliminated by the market; the use of FPSO (floating production storage device) ) is not suitable for this sea area because of its high cost. The configuration of conventional power station systems increases the construction cost of the project and fails to maximize the economic benefits of the project

Method used

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  • Self-elevating MOPU economical power system
  • Self-elevating MOPU economical power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: as attached figure 1 As shown, the platform is powered by the dual-fuel main generator 1 using the L-shaped power supply mode 12 to supply power to all equipment on the platform. The neutral point of the dual-fuel main generator 1 is grounded with high resistance. The 11KV electric energy is transmitted to the 690V marine auxiliary switchboard 4 through the 11KV / 725V transformer 1, and another 11KV / 725V transformer 2 is sent to the 690V upper module switchboard 14.

[0029] The 690V marine auxiliary switchboard 4 realizes power chain energy supply through the following switches: incoming line switch ACB-1, confluence isolating switch ACB-2, shore power incoming line switch ACB-3, and contact switch ACB-4 (used for and emergency distribution board connection).

[0030] The 690V emergency switchboard 13 realizes the power supply chain function through the following switches: contact switch ACB-5 (used to connect with the marine auxiliary switchboard), gener...

Embodiment 2

[0032] Embodiment 2: as attached figure 2 As shown, the power supply of the platform uses the reverse power supply mode 17 through the important and emergency function generator 9 to meet the power supply requirements of the platform's main important living equipment and platform self-elevating equipment. During this process, the power management system of the intelligent power station on the platform monitors the power failure of the main busbar, and the power management system disengages the incoming switch ACB-1, and the busbar A5 is automatically isolated by the busbar isolation switch ACB-2. The incoming line switch ACB-3 allows manual parallel closing, and the important and emergency function generator 9 starts automatically within 45 seconds. The important and emergency function generator 9 power supply switch ACB-6 automatically closes for reverse power supply. The switch ACB-5 and the contact switch ACB-4 are sent to the bus bar B7, and the 690V emergency distributio...

Embodiment 3

[0034] Embodiment 3: as attached image 3 As shown, when an emergency condition occurs on the platform, the emergency shutdown system sends an instruction signal and the contact switch ACB-5 will be automatically disengaged, the 690V emergency switchboard 13 will run in isolation, and the important and emergency function generator 9 will be within 45 seconds. The starter switches to emergency mode.

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Abstract

The invention relates to the field of offshore ocean engineering and particularly relates to a self-elevating MOPU economical power system. The system comprises a main power station, an important andemergency power station and a power grid. The main power station is fixedly connected with a dual-fuel main generator. The dual-fuel main generator is electrically connected with an upper module powerdistribution system. One side, far away from a 690V upper module power distribution board, of a 11KV power distribution board, is electrically connected with a 690V marine auxiliary power distribution board. The 690V marine auxiliary power distribution board comprises a busbar A and a busbar B. One side, away from the busbar A, of the busbar B is electrically connected with a 690V emergency powerdistribution board. One end, away from the busbar B, of the 690V emergency power distribution board is electrically connected with the important and emergency power station. The power grid comprisesan L-shaped power supply mode, a reverse power supply mode and an emergency power supply mode. The system is suitable for a self-elevating oil-gas production processing platform and an economical power supply system in the offshore ocean engineering field. The system meets related laws and regulations, and reduces the project cost to the maximum extent.

Description

technical field [0001] The invention relates to the field of offshore marine engineering, in particular to a self-elevating MOPU economical power system. Background technique [0002] Currently, oil and gas production and treatment in small and medium-sized offshore oilfields is different from shallow sea and deep sea oil and gas treatment, using fixed oil production platforms or FPSO (floating production and storage units). The power station system adopts the mode of three main generators + 1 emergency generator or two main generators + 1 emergency generator to provide the power system for the platform. [0003] The oil and gas exploitation volume of small and medium oil and gas is far less abundant than that of the deep sea. If a fixed oil production platform is used, after a period of operation is completed, it will lose the meaning of operation and need to be dismantled, leaving marine garbage, which is gradually eliminated by the market; the use of FPSO (floating produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J9/08
CPCH02J3/00H02J9/08
Inventor 郭金任韶琦李静李孝喜李玉涛郑志峰杨巍巍
Owner 上海中远船务工程有限公司
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