BAKER HUGHES - Drilling Fluids Reference Manual

HYDRAULICS
Re c
Re p
SG c
t
T
TVD
V a
V c
V m
V n
V p
V s
V t
γ
γ b
γ p
θ 3
θ 300
θ 600
Reynolds Number, critical
Reynolds Number, pipe
Specific gravity, cuttings
Time
Thickness, particle
True vertical depth
Velocity, annular
Velocity, critical
Equivalent velocity, fluid
Velocity, nozzle
Velocity, pipe
Velocity, slip
Transport, cuttings
Shear rate
Shear rate, boundary
Shear rate, particle
3 rpm reading
300 rpm reading
600 rpm reading
μ Effective viscosity, annulus
e a
μ Effective viscosity, pipe
e b
ρ
ρ e
τ
τ g
τ p
Fluid density
Fluid weight, effective
Shear stress
Gel strength, 30 min.
Shear stress, particle
BAKER HUGHES DRILLING FLUIDS
REFERENCE MANUAL
REVISION 2006 9-39