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Database design |
1 Baker Hughes INTEQ, Shirley Avenue, Windsor, Berkshire SL4 5LF, U.K.
2 Baker Hughes INTEQ, 7000 Hollister, Houston, Texas 40265, USA
3 Baker Hughes INTEQ, 17015 Aldine Westfield Road, Houston, Texas 73118, USA
The preservation of observed geological data in a standardized and digitally accessible form presents a challenge. Geological data objects range in scale from the macroscopic, e.g. outcrop and core, to the microscopic, e.g. drill-cuttings. Each change in scale has a direct effect on apparent heterogeneity, which may result in contradictory data, and the providers of the observations may have widely differing degrees of experience. A system has been developed for the definitive description and preservation of features in core and drill-cuttings using workstations. It provides the opportunity to extract definitive individual attributes from geological descriptions with a minimum of extra effort. These digitally stored data are represented graphically, textually and symbolically to construct geological logs. Geological data may be presented in combination with drilling and mud gas data, Measurement While Drilling (MWD) and wireline logging data, and off-site analyses, to produce composite formation evaluation logs, as well as being exported in customized file formats, thereby enhancing the value of all data through integrated information management.
