Page 376 - Air and Gas Drilling Manual
P. 376
Figure 4-17 gives a diesel fuel consumption rate of 0.538 lb/hp-hr for a prime mover
power ratio of 70.3 percent. The total weight rate of diesel fuel consumption per
hour is
.7 lb/hr
˙ w = . 0 583 (467 . ) =9 Chapter 8: Air, Gas, and Unstable Foam Drilling 8-59
251
f
The diesel fuel consumption rate (in United States gallons) for the drilling depth of
10,000 ft is
q = 251 7 . = 37 1 . gal/hr
f
0 8156 8 33)
(. )( .
Figure 8-11: Drill string injection pressure (same as booster compressor output pressure)
for Illustrative Example 8.4 (q g = 3,396 acfm).
