Establishment of an oil and gas database for increased recovery and characterization of oil and gas carbonate reservoir heterogeneity
The objectives of this project are to augment the National Reservoir Database (TORIS database) and to increase our understanding of geologic heterogeneities that affect the recoveries of oil and gas from carbonate reservoirs in the State of Alabama and to identify those resources that are producible at moderate cost. These objectives will be achieved through detailed geological, engineering, and geostatistical characterization of typical Jurassic Smackover Formation hydrocarbon reservoirs in selected productive fields in the State of Alabama. The results of these studies will be used to develop and test mathematical models for prediction of the effects of reservoir heterogeneities in hydrocarbon production. Work to date has focused on the completion of Subtasks 1, 2, and 3. Subtask 1 included the survey and tabulation of available reservoir engineering and geological data relevant to the Smackover reservoir in southwestern Alabama. Subtask 2 comprises the geological and engineering characterization of Smackover reservoir lithofacies. This has been accomplished through detailed examination and analysis of geophysical well logs, core material, well cuttings, and well-test data from wells penetrating Smackover reservoirs in southwestern Alabama. From these data, reservoir heterogeneities, such as lateral and vertical changes in lithology, porosity, permeability, and diagenetic overprint, have been recognized and used to produce maps, cross sections, graphs, and other graphic representations to aid in interpretation of the geologic parameters that affect these reservoirs. Subtask 3 includes the geologic modeling of reservoir heterogeneities for Smackover reservoirs. This research has been based primarily on the evaluation of key geologic and engineering data from selected Smackover fields. 1 fig.
- Research Organization:
- Alabama Geological Survey, Tuscaloosa, AL (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- FG22-89BC14425
- OSTI ID:
- 6443658
- Report Number(s):
- DOE/BC/14425-T5; ON: DE91002414
- Country of Publication:
- United States
- Language:
- English
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Establishment of an oil and gas database for increased recovery and characterization of oil and gas carbonate reservoir heterogeneity
Establishment of an oil and gas database for increased recovery and characterization of oil and gas carbonate reservoir heterogeneity