Geological Survey of Canada-Quebec, Canada

Unlike the application of X-ray computed tomography (X-CT) in the industry, purpose of using X-CT data in the scientific ocean drilling expeditions varies from checking of operational data quality and screening whole-round core in terms of quality and importance in structural geology, the quantitative estimation of physical properties (e.g. porosity and density) to the core description-interpretation and core-log-seismic integration. The long journey of using valuable X-CT data in scientific ocean drilling is summarized from few examples used as post-cruise research in the 90s to the routine use at well-site right after core is on the rig floor in the last five years.