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Volume :5 Issue : 1 1978      Add To Cart                                                                    Download

A statistical correlation for predicting oil and gas flow rates through chokes

Auther : ALI M. AKBAR

Department of Chemical Engineering, University of Kuwait

 

ABSTRACT

 

Oil flow rate through chokes, assuming critical flow conditions, can be predicted. The present method defines, statistically, empirical equations for wellhead choke performance in terms of a physical parameter (م) which is a function of gas-oil ratio and fluid properties. From a minimum number of production tests, a statistical mean value for the physical parameter (م) can be found for a reservoir in a particular field. Using this mean value of (م), an equation for oil flow rate through chokes can be developed for a reservoir to account for pressure-volume-temperature (PVT) characteristics of oil and gas. This method has been tested for actual oilfields using the equation presented by Nind (1964). There is a close agreement between the actual and calculated values of flow rate when this method is used.

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