Model 520 HT UCA
D01157216
Revision A, October 2015
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Introduction
Cements are a critical element in the drilling, completion, workover, and
abandonment of wells. For each application, a cement slurry is designed with
specific properties and is given additives that provide predictable slurry density,
volume, viscosity, compressive strength, fluid loss, gas migration, and thickening
time. The Model 520 Ultrasonic Cement Analyzer (UCA) is used to provide a
history of the strength development of a cement slurry as it cures under elevated
temperature and pressure.
The UCA transmits an ultrasonic pulse through a cement slurry and measures the
travel time of the pulse through the slurry. The travel time of the pulse through the
slurry gives an indication of the compressive strength of the slurry. The
compressive strength, along with temperature and pressure, are monitored as a
function of time for the purpose of providing a strength history of a setting cement
slurry.
