A system and method for power generation and compression/liquefaction recovery of associated petroleum gas
A technology for oil-associated gas and power generation systems, applied in the petroleum industry, gas fuels, machines/engines, etc., can solve the problems of uneconomical power generation, shutdown, and large changes, and achieve the effects of easy transmission, easy use, and improved safety.
Active Publication Date: 2016-03-30
XI AN JIAOTONG UNIV
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Problems solved by technology
On the one hand, it is not cost-effective to use all the associated gas for power generation. The value of the associated gas for residential use after liquefaction, or as a clean energy source for automobiles is higher than that of power generation; Stable, and may even shut down; moreover, the associated gas is directly used for power generation without pretreatment, which will cause great damage to the engine
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[0033] The present invention will be further described below in conjunction with accompanying drawing.
[0034] see figure 1 and figure 2, the present invention is a system for power generation and compression / liquefaction of associated petroleum gas, including an industrial computer, an ambient gas monitoring system, a three-way solenoid valve, a flow measuring instrument, a pressure measuring instrument, a first booster pump, gas filtration and drying System, associated gas online detection system, associated gas compression / liquefaction system, first flow controller, second booster pump, second flow controller, third flow controller, pressure stabilizing pump, internal combustion engine power generation system, power transformation system , Power quality monitoring system and communication system.
[0035] Among them, the three-way solenoid valve is provided with an inlet of associated petroleum gas and an outlet for combustion and evacuation of the associated petroleum ...
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The invention discloses an oil associated gas power generation and compression / liquidation recycling system and method. The components and concentration of oil associated gas are analyzed through online quantification, the flow and pressure of the associated gas are tested, and according to an associated gas analysis result, steady power generation of the associated gas is achieved by adjusting air flow, the flow of associated gas entering a generator and fuel gas generator power. On one hand, power is provided for an oil extraction system and a gas compression / liquidation system; on the other hand, electricity is provided for an associated gas comprehensive utilization system. Meanwhile, under the circumstance that the associated gas is insufficient, the system only generates electricity or carries out oil-gas hybrid power generation. The system monitors the temperature of a generating set, the liquid level and pressure of a gas compression / liquidation device and the concentration of associated gas in ambient air at the same time, can give an alarm to be closed if abnormal conditions appear and empties the associated gas through combustion.
Description
【Technical field】 [0001] The invention relates to the fields of petroleum associated gas reuse, petrochemical and electric power, and in particular to a system and method for generating electricity and compressing / liquefying recovery of associated petroleum gas. 【Background technique】 [0002] Oil and gas exploration and exploitation sites involve a large amount of associated gas. The characteristics of these associated gases are: (1) Large displacement. For example, the "sky lanterns" in my country's oil mining sites burn as much as 10×10 associated gas every day. 8 m 3 , the value of one day's emissions of a "sky lantern" can reach more than 100,000 yuan, which is equivalent to two west-east gas pipelines in my country; (2) The composition is complex. In different occasions, the components in the emitted exhaust gas are different, but the components generally included are very complex. For example, the associated gas emitted during oil exploration and production includ...
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IPC IPC(8): F02B63/04C10L3/10
Inventor 汤晓君张徐梁寇福林刘君华
Owner XI AN JIAOTONG UNIV