Application of dual-energy CT scan to analyse and predict rock properties in core analysis

  • Nguyen Lam Quoc Cuong
  • Nguyen Hong Minh
Keywords: Dual-energy CT scanning, rock properties, Compton scattering, photoelectric effect, porosity

Abstract

Tomography has been used in the oil and gas industry for more than 20 years to study core sample properties and visualise fluid flow [1 - 8]. Qualitative tomography provides information on heterogeneity [9], petrographic change, fissure, cavity and penetration level of drilling muds, whereas quantitative tomography in addition to the above applications is also used to calculate the bulk density, porosity, and calibration of logging curves.

The article presents the method for prediction of rock properties (such as grain density and porosity, etc.) from the results of CT scans using Dual-energy CT Scanning - DECT at 140 kV and 80 kV. The CT scan results are compared with the values of the geophysical curve, showing a great potential in determining the physical properties of the reservoir rock as well as the reservoir fluid.

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Published
2021-02-26
How to Cite
Nguyen Lam Quoc Cuong, & Nguyen Hong Minh. (2021). Application of dual-energy CT scan to analyse and predict rock properties in core analysis. Petrovietnam Journal, 2, 21 - 27. https://doi.org/10.47800/PVJ.2021.02-03
Section
Articles