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Phase behavior and physical parameters of natural gas mixture with CO2
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نویسنده
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hou d. ,deng h. ,zhang h. ,li k. ,sun l. ,pan y.
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منبع
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journal of chemistry - 2015 - دوره : 2015 - شماره : 0
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چکیده
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The two-flash experiment,constant composition expansion experiment,saturation pressure measurement experiment,and phase transition observation experiment from well bottom hole to well head of four high co2 content natural gas samples were carried out by using the jefri-pvt apparatus made from dbr company of canada. the experimental results show that in the four high co2 content gas samples no phase transitions will take place at temperatures greater than 35°c. in the gas-liquid two-phase region,saturation pressures,critical pressure,critical temperature,and an integrated p-t phase diagram of different co2 content natural gases are calculated by using the modified pr equation of state and modified (t) equation proposed by saffari. the deviations between the saturation pressure calculated by using the model proposed in this study and experimental measured saturation pressure are very small; the average relative error is only 2.86%. thus,the model can be used to predict the phase equilibrium parameters of high co2 content natural gas. © 2015 dali hou et al.
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آدرس
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school of energy resources,chengdu university of technology,chengdu,sichuan,china,state key laboratory of oil and gas reservoir geology and exploitation,chengdu university of technology,chengdu,sichuan,china,state key laboratory of oil and gas reservoir geology and exploitation engineering,southwest petroleum university,xindu avenue no. 8,chengdu, China, school of energy resources,chengdu university of technology,chengdu,sichuan,china,state key laboratory of oil and gas reservoir geology and exploitation,chengdu university of technology,chengdu, China, school of energy resources,chengdu university of technology,chengdu,sichuan,china,state key laboratory of oil and gas reservoir geology and exploitation,chengdu university of technology,chengdu, China, school of energy resources,chengdu university of technology,chengdu,sichuan,china,state key laboratory of oil and gas reservoir geology and exploitation,chengdu university of technology,chengdu, China, state key laboratory of oil and gas reservoir geology and exploitation engineering,southwest petroleum university,xindu avenue no. 8,chengdu, China, state key laboratory of oil and gas reservoir geology and exploitation engineering,southwest petroleum university,xindu avenue no. 8,chengdu, China
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Authors
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