Abstract
Abstract Heavy brine completion fluids decrease in density with increasing temperature and increase in density with increasing pressure. Pressure-volume-temperature (P-V-T) analysis of various brine solutions at temperatures from 76° to 345°F and pressures of 0 to 22,000 psig has been used to examine the behavior-of brine density under bottom-hole conditions. Information obtained from these measurements allows the engineer to calculate more precisely the brine density at the surface which will provide the desired hydrostatic gradient for formation pressure control at downhole temperatures and pressures.
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