Page 468 - Air and Gas Drilling Manual
P. 468
9-72 Air and Gas Drilling Manual
∋
.
.
.
∋ v v 096 1 006 240 14 . 1 1
0 910
.
˙
From Equation 4-38, the actual shaft horsepower, W , required by each compressor
as
is
W ˙ 264 .1
as
(. 0 90 ) (. 0 910 )
W ˙ as 322 .5
Figure 9-7: Drill string air injection volumetric flow rate as a function of drilling time
(drilling depth) for Illustrative Example 9.3.
