Application of Variable Zone Modeling to Modeling and Mapping of Canadian Oil Sands
Khosrow Badiozamani, Foad Roghani, George Hawes, 1992. "Application of Variable Zone Modeling to Modeling and Mapping of Canadian Oil Sands", Computer Modeling of Geologic Surfaces and Volumes, David E. Hamilton, Thomas A. Jones
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The Variable Zone Modeling (VZM) concept was introduced to resolve the problem of accurate estimation of mineral concentrations in an epigenetic deposit where concentration of an attribute is a function of local and small-scale geologic variations. VZM not only allows block height variation from one stack to the next, but it also allows block height changes within each stack. This approach provides the ability to fit the blocks exactly to geologic units (zones and subzones). A computer program was designed to automatically generate the subzone definitions through the use of predefined criteria.
VZM was applied to the Athabasca oil sand deposits of Alberta, Canada, which contain many depositional facies. Use of VZM in modeling these sand units produced excellent results in estimating bitumen content where previous models have failed. The application of VZM to these deposits in the vicinity of a surface mine at Fort McMurray, Alberta, is discussed in detail in this paper.
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Computer Modeling of Geologic Surfaces and Volumes
A collection of papers on computer-mapping case studies, this publication is a useful “go-by” for both beginners and advanced users of computer-mapping software. Fore the most part, the papers concentrate on the geologic features of significance to mapping, the methods used and their justification, and results obtained. The publication is separated into two parts. Part 1 consists of 12 papers dealing with data and surface modeling. Part 2 consists of 7 papers dealing with three-dimensional geologic block modeling.