24th October 2019
Event phone:
Abstract
Over the last decade, hyperspectral infrared spectroscopy has become recognised as a useful technique for quantifying mineral content in core, plugs and cuttings. Mineral abundance can be defined on a sub-millimetre level. These fine scale data are extremely valuable for both geologists and core analysts. This talk aims to show methodologies to use these high-resolution mineral data to help calibrate common log interpretation models.
Log interpretation models all include constant parameters that relate to some property of the rock being tested. For example, to obtain shale volumes from gamma logs requires an estimate of the gamma response in both ‘clean’ sand and high shale content rocks. The log interpreter will make an educated guess as to the value of these parameters based on all available information. Knowledge of the rocks mineralogy greatly enhances the selection of these parameters. Awareness of minerals spatial distribution allows the log interpreter to vary/zone these parameters throughout the logged section.
Examples from reservoir sections will be shown to illustrate methods to calibrate different log interpretation models including, shale volume from gamma logs, density log porosity models and clay bound water from NMR.
Venue Information
Venue information
Venue name:
The Three Tuns