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Field studies on gas-oil ratios for target production zones of Bashneft JSOC oil fields

Authors: I.S. Ignatov (Bashneft JSOC, RF, Ufa), E.V. Lozin, R.N. Imashev,V.N. Fedorov (BashNIPIneft LLC, RF, Ufa)

Based on experience with field research methodology is proposed for determining the current values of the gas factors of oil fields by measuring flow rates of oil and gas of reference wells. Set out the criteria for selecting the reference wells, the criteria of reliability of the results of field measurements of gas-oil ratio. It is noted that measurements of gas content in oil well production must take into account the gas content of produced water, primarily in the fields of the late and final stages of development.

Key words: oil, produced water, gas-oil ratio, gas factor, residual gas-oil ratio, utility meter, mathematical statistics, reference wells network.

References

1. Sheykh-Ali D.M., Izmenenie svoystv plastovoy nefti i gazovogo faktora v protsesse ekspluatatsii neftyanykh mestorozhdeniy (Changing the properties of produced oil and gas factor in the exploitation of oil fields), Ufa: BashNIPIneft' Publ., 2001, 140 p.

2. William D. McCain Jr., The properties of petroleum fluids: 2nd ed., Tulsa, Oklahoma: PenWell Books, 1990.

Based on experience with field research methodology is proposed for determining the current values of the gas factors of oil fields by measuring flow rates of oil and gas of reference wells. Set out the criteria for selecting the reference wells, the criteria of reliability of the results of field measurements of gas-oil ratio. It is noted that measurements of gas content in oil well production must take into account the gas content of produced water, primarily in the fields of the late and final stages of development.

Key words: oil, produced water, gas-oil ratio, gas factor, residual gas-oil ratio, utility meter, mathematical statistics, reference wells network.

References

1. Sheykh-Ali D.M., Izmenenie svoystv plastovoy nefti i gazovogo faktora v protsesse ekspluatatsii neftyanykh mestorozhdeniy (Changing the properties of produced oil and gas factor in the exploitation of oil fields), Ufa: BashNIPIneft' Publ., 2001, 140 p.

2. William D. McCain Jr., The properties of petroleum fluids: 2nd ed., Tulsa, Oklahoma: PenWell Books, 1990.


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