Automated Linear X-Ray Scanning, developed in cooperation with major research centers
and universities, provides for the series of automated linear x-ray scanning tables
allow the unattended scanning of core samples, mounted in x-ray transparent core
holders, during petrophysical experimentation at reservoir conditions. The system
allows instantaneous saturation profiles to be recorded during flow experiments
for the real time visualization and control of saturation stability criteria.
The operating software allows the input of scanning criteria controlling slice size,
number of slices, scanning time, repeat time and frequency of detector calibration
to be set by the operator. Real time displays of saturation’s are available if all
relevant base scans have been performed, as an average along the core length, as
a function of time and also as discrete points along the core as a function of time.
Vertical orientation is ideal for the monitoring of slow flow rate gas floods, gravitational
drainage simulations or for the avoidance of gravitational effects in high flow
rate oil/water floods on high permeability samples.
The x-ray source and shield are independently tested and certified to exceed all
statutory safety requirements and leakage certified to be less than 0.5 mR/hr at
a 1-inch distance from the detector/source assembly. The system offers a number
of advantages for relative permeability testing including core sample heterogeneity
quantified as a function of time and distance, discrete average values for saturation,
saturation profiles, flood front tracking, delineation of end effects and real time
saturation monitoring. Modular design enables integration with existing laboratory
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