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Enter desired slip velocity here in fpm
,
CFM AIR REQD
GAL AIR MIN.
LITERS AIR MIN.
Reverse annular slip velociaty calculator
DISCHARGE PIPE DIAMETER INCHES
GPM
IN CELLS F11 AND F12 THE TEST VALUES ARE F11=20 AND F12=8 TO YIELD 2.6OO4 IN CELL I15
Air Requirement by drill stem size calculation sheet
Do Not
C is the constant
change
IR air requirement calculator
Formula
Va=0.8Li/(C Log10{(Ls+34)/34}
DEPTH FT
Ls= length of submerged section (ft)
Ls=
Li = length of the lift section (ft)
L1=
PERCENT
PSI
Va = volume of free air (cu.ft) needed per gallon of water
SG=
Li (ft.)
C
Ls+34/34
1.15
10-60
Cu. Ft. volume
air to pump 1 gallon of water
61-201
201-500
501-650
651-750
C
is a constant based upon the depth of water below the fluid level see source
https://www.plantservices.com/articles/2002/12/
Air pressuere required
B=
L= submergence
specific gravity
P=(b+L)*sg/2.31
psi
Note, specific gravity will vary between 1 and 1.33
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