Development and Application of Terrestrial Laser Scanning, Hyperspectral Mapping and Photogrammetry in Reservoir Modeling
Hyperspectral Remote Sensing, Sequence Stratigraphy, Reservoir Modeling, University of Houston, Houston, TX, USA
The study of outcrops is a viable tool in facies architecture and reservoir characterization studies. High resolution geometric surveys, including terrestrial laser scanning, allow 3-D photorealistic outcrop models to be captured and interpreted using robust analysis and visualization environment. A Riegl VZ-400 terrestrial laser scanner was used to scan vertical cliffs of incised valleys within the Turonian Ferron Notom Delta in Utah. Nearly five thousand digital images have been captured with the use of a tilting and rotating stage. A super-telephoto lens with focal length up to 500 mm allowed identification of small features, such as mud drapes, that are as small as a few millimeters in thickness. The outcrop is composed of a series laterally accreting and vertically accreting tidally influenced channels that are exposed in a series of strike and dip aligned exposures. A 3-D outcrop model has been created from lidar point cloud, high resolution digital panoramic imagery and high precision differential GPS solutions, allowing the digitized geologically important surfaces to be used later as inputs to a reservoir model. Ongoing investigation is focused on a data fusion of the geometrically accurate 3-D photorealistic model with hyper-spectral imaging technology. This type of data fusion is expected to help address two issues of concern: (1) accurate 3-D geometry and heterogeneity of the facies architectural elements, and (2) net-to-gross estimation of reservoir facies. Filling this type of knowledge gap is of particular interest to the oil and gas industry in developing enhanced recovery techniques for similar incised valley reservoir types.
AAPG Search and Discovery Article #90199 © 2014 AAPG Foundation 2014 Grants-in-Aid Projects