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Index Terms Links

Pumps (Cont.)
maintenance costs 86
minimum required pressure 68

mud properties that affect 62
pressure requirements for 66
triplex. See Triplex pump

R

Rate of penetration (ROP) 81
Reciprocating piston pumps 3

Reynolds numbers
actual 37
critical 33 35
Fanning friction factor as function of 38
Herschel–Bulkley fluids 32
Newtonian fluids 27

Rheological properties
Bingham plastic fluids 25 62
Herschel–Bulkley fluids 26
Newtonian fluids 24
Power Law fluid 25
Rheology 20
Rotating head, in gas drilling system 113 113

S

Safety, in gas drilling 161
Shale shaker 11 11
Shale swelling 160
Shear rate 20

fluids and 20 20

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