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Index Terms Links

Critical Reynolds number
estimation of 33 35
pressure loss calculations 37

Crooked hole 160
Crossover sub 6
Cuttings-carrying capacity
of gas 119
low gas injection rate effects on 128
of mud 54

D

Decanting centrifuge 17 18
Degassers 12 13
Deployment valves 171 171
Desanders 14 15
Desilters 14 15

Deviated holes, gas flow in 125
Dilant fluid 21
Directional drilling
measurements while drilling 215
minimum required mud velocity for 57
Double-action piston stroke 74 75
Downhole equipment

gas drilling systems 114
underbalanced drilling systems 170 171
Downhole fires 162
Downstream upstream pressure ratio 158
Drill collar 6 8
drill cuttings above 152

pressure loss calculations 41 44

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