High-resolution core petrophysics - CORE-PET™

Cores and related data are commonly under-utilised but hold the potential to significantly aid petrophysical calibration. In addition, the graphical formats of traditional core descriptions are of limited use to petrophysicists. The process of core description, however, results in a detailed appreciation of the nature of the rock, beyond that which can be displayed in traditional formats, and new ways of recording and displaying this information can aid the integration between geologists and petrophysicists.

Core-PET™: High resolution geological petrophysics

CORE-PET™ is a technique developed by Fugro Robertson which utilises the detailed geological analysis of core material, core photographs and related data for the express purposes of calibrating and constraining petrophysical interpretations, and to improve cross-over of information and knowledge between sedimentologists and petrophysicists.

Workflow techniques include unique applications of core image analysis, digital core description and the generation of high resolution digital datasets from geological analysis of core material. The technique results in improved exchange of information between geologists and petrophysicists and improves the calibration and confidence levels of petrophysical interpretations. Application of these techniques ensures that maximum use is made of all available data. A high resolution dataset of direct relevance to petrophysics is generated for cored intervals. These data are generated entirely independently of the well-log derived petrophysical interpretations and provide an opportunity to both improve and ground truth the calibration of petrophysical data, and to understand the possible scaling effects and vertical resolution of log derived petrophysical results.