homework problem

Using the Beggs and Brill model, find the length of pipe between the points at 1000 psia and 500 psia with the following data in both vertical and horizontal cases. Compare the results for the flow pattern, liquid hold up and the pipe length in both cases. The flow and PVT data at average T and P conditions are given as:

QO=400

GLR=500 scf/STB Qw=600 bbl/D (STB/D) API=22

Gas gravity= 0.65

D= 1.995 in Bo=1.063 Rs= 92 scf/STB Z=0.91

μL= 17 cp

μw= 0.63 cp μg= 0.013 cp σL= 30 dyns/cm σw= 70 dyns/cm