Reservoir Fluid Properties - Cased-Hole Log Analysis and Reservoir Performance Monitoring - page 36

Question #3.9 ʼ g
Given: ʳ g = 0.6, T Twf, = 200 °F, p Twf, = 3,000 psi
Find ʼ g = ___cp
Oil
Bubble-Point Pressure . The bubble-point pressure is a critical item of data. It is
used to make many of the estimates necessary for correct prediction of downhole
conditions during the planning of production logging and/or interpretation of the
results. Bubble-point pressure ( p b ) depends on T Twf, , R s , p Twf, , ʳ o , and ʳ g . Figure 3.18
combines all these factors on one chart.
Fig. 3.18 Bubble-point pressure. Courtesy Schlumberger