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علوم نفت 2013
جزئیات رویداد
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  • viscosity prediction in selected iranian light oil reservoirs: artificial neural network versus empirical correlations

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 941
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     viscosity is a parameter that plays a pivotal role in reservoir fluid estimations. several approaches have been presented in the literature (beal, 1946; khan et al, 1987; beggs and robinson, 1975; kartoatmodjo and schmidt, 1994; vasquez and beggs, 1980; chew and connally, 1959; elsharkawy and alikhan, 1999; labedi, 1992) for predicting the viscosity of crude oil. however, the results obtained by these methods have significant errors when compared with the experimental data. in this study a robust artificial neural network (ann) code was developed in the matlab software environment to predict the viscosity of iranian crude oils. the results obtained by the ann and the three well-established semi-empirical equations (khan et al, 1987; elsharkawy and alikhan, 1999; labedi, 1992) were compared with the experimental data. the prediction procedure was carried out at three different regimes: at, above and below the bubble-point pressure using the pvt data of 57 samples collected from central, southern and offshore oil fields of iran. it is confirmed that in comparison with the models previously published in literature, the ann model has a better accuracy and performance in predicting the viscosity of iranian crudes.

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