A mathematical model requiring a minimum of input data can predict the variation of downhole density and hydrostatic pressure in static drilling fluids. It is a general model for oil and water base drilling fluids and completion fluids. Analysis of the model allows several important conclusions to be drawn about the density behavior of drilling fluids downhole.

Keywords:
thermal gradient, average density, drilling fluid management & disposal, solid content, ib gal, drilling fluid property, drilling fluid formulation, wellbore, upstream oil & gas, water base mud
Subjects:
Drilling Fluids and Materials, Drilling fluid selection and formulation (chemistry, properties), Drilling fluid management & disposal
Copyright 1982, Society of Petroleum Engineers of AIME
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