CORE INVASION STUDIES WITH DEUTERIUM TRACER
Mud tracing techniques to
enable the determination of reservoir saturation and residual oil saturation direct from the core
are well established. The amount of coring fluid contamination contained in the formation water
of a core sample can by determined using a deuterium oxide (heavy water) tracer.
Prior to coring a quantity of deuterium oxide is added to the aqueous coring fluid and samples
of the coring fluid taken periodically during the coring process. Water is extracted from the
core plugs by Dean-Stark distillation and the levels of deuterium in the extracted water and coring fluid
samples determined by Isotope Ratio Mass Spectrometry (IRMS).
Our continuous-flow IRMS method
for determination of deuterium enrichment is quicker and cheaper to perform than traditional methods performed
by other laboratories, meaning you get your results faster and pay less.
Example Laboratory Report for deuterium analysis of core waters by IRMS.
Petroleum Reservoir Rock and Fluid Properties
By Abhijit Y. Dandekar (ISBN 0849330432)