Abstract
ABSTRACT A method is presented for calculating flowing bottomhole pressures in gas wells producing liquids. This method, a refinement of the Average Temperature and Pressure Method, includes an adjustment to the gas gravity to account for the presence of well stream liquids and the use of an optimum absolute roughness in the calculation of the friction factor. The effect of dividing the wellbore into multiple segments was also investigated. The proposed method was tested against 144 wells obtained from a paper by Peffer et. al.1 Of the wells tested, 94 were originally from a paper by Govier and Fogarasi.2 The other 50 wells were taken from the files of the Texas Railroad Commission.
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