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BAKER HUGHES - Drilling Fluids Reference Manual

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Baker Hughes <strong>Drilling</strong> <strong>Fluids</strong><br />

Nomenclature<br />

A<br />

Area<br />

CEC<br />

Cation Exchange Capacity<br />

CEC bent<br />

CEC DS<br />

CEC fluid CEC avg<br />

D<br />

f<br />

f l<br />

F<br />

K<br />

K a<br />

K p<br />

lb m / bbl<br />

MBT m<br />

n<br />

n a<br />

n p<br />

Cation Exchange Capacity, bentonite<br />

Cation Exchange Capacity, drilled solids<br />

Bentonite correction<br />

Diameter<br />

Filtrate, known temperature<br />

Filtrate, elevated temperature<br />

Force<br />

Consistency factor<br />

Consistency factor, annular<br />

Consistency factor, pipe<br />

Pounds per barrel<br />

lbm / bbl equivalent of methylene blue capacity<br />

Flow behavior index<br />

Flow behavior index, annular<br />

Flow behavior index, pipe<br />

% Bentonite Volume % of bentonite<br />

% DS Volume % of drilled solids<br />

% LGS Volume % of low-specific gravity solids<br />

PV<br />

Plastic Viscosity<br />

Re<br />

Reynolds number<br />

T<br />

Time interval<br />

V<br />

Velocity<br />

YP<br />

Yield Point<br />

g<br />

Shear rate<br />

μ<br />

Viscosity<br />

μ a<br />

μ e<br />

μ ∞<br />

μ 1<br />

ω<br />

ρ<br />

ρ bent<br />

ρ DS<br />

ρ LGS<br />

τ<br />

τ o<br />

θ<br />

θ 3<br />

θ 300<br />

θ 600<br />

Viscosity, apparent<br />

Viscosity, effective<br />

Plastic viscosity<br />

Viscosity, elevated temperature<br />

Rotation speed<br />

Density<br />

Density, bentonite<br />

Density, drilled solids<br />

Density, low-gravity solids<br />

Shear stress<br />

Yield stress<br />

Dial reading, viscometer<br />

Dial reading, 3 rpm (initial gel)<br />

Dial reading, 300 rpm<br />

Dial reading, 600 rpm<br />

Baker Hughes <strong>Drilling</strong> <strong>Fluids</strong><br />

<strong>Reference</strong> <strong>Manual</strong><br />

Revised 2006 1-47

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