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ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110
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Modeling Study on Fluid Flow in Horizontal Perforated Pipes with Wall Influx
ABSTRAKT
Over the past two decades, the modeling of fluid flow in a perforated pipe with influx through orifices on the pipe wall has been recognized as an important issue especially in the field of horizontal wells. Although several investigators, such as Su, Yuan and Ouyang, etc. have done some modeling studies upon such special variable mass flows, almost all of the models presented are still questionable and inconclusive which implies that additional efforts should be made to get more robust and applicable ones. Based on an thorough theoretical analysis and previous research achievements, an improved model has been developed for the prediction of pressure profiles upon single-phase flow in the horizontal perforated pipes. The new model is then implemented with the use of the Visual Basic.NET package and a distinctive and useful class has been designed in order to solve the proposed model conveniently. A preliminary comparison between the results obtained by the improved model and Su model is also conducted in this paper and the result shows that the new developed model corresponds better to the practical situation. Moreover, the improved model comprehensively represents the various physical phenomena in the horizontal perforated pipe flow with wall mass transfer, such as the unique lubricating effect caused by the fluid influx, and could be easily used to predict the pressure drop of fluid flow in the horizontal wellbore with perforated completion utilizing the designed computer class given in the paper.