The Impact of Vertical Averaging on Hydrocarbon Volumetric Calculations—A Case Study
Larry E. Denver, Danny C. Phillips, 1992. "The Impact of Vertical Averaging on Hydrocarbon Volumetric Calculations—A Case Study", Computer Modeling of Geologic Surfaces and Volumes, David E. Hamilton, Thomas A. Jones
Download citation file:
Accurate hydrocarbon volumetrics can only result from detailed reservoir description. Two-dimensional techniques have traditionally served to quantify reservoir description. However, two-dimensional characterization of three-dimensional heterogeneities may not yield acceptable volumetric analysis in heterogeneous reservoirs. The primary pitfall in the traditional methodology is the inherent vertical averaging. In the case studies that follow, volume discrepancies as high as 21% are documented between three-dimensional modeling and two-dimensional mapping. This paper focuses on the deleterious impact of vertical averaging on reservoir characterization and hydrocarbon volumetric calculations and demonstrates that three-dimensional geologic block modeling is a more accurate alternative to traditional volumetric techniques.
Figures & Tables
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.