Determining the productivity of a barrier island sandstone deposit from integrated facies analysis
Journal Article
·
· SPE Formation Evaluation (Society of Petroleum Engineers); (USA)
- NIPER, Bartlesville, OK (US)
Two crossplot techniques, based on core-calibrated resistivity, porosity, and gamma ray (GR) logs are described that distinguish barrier island sandstones from genetically different nonbarrier sandstones in the Muddy sandstone reservoir in Unit A of Bell Creek field, Montana. The barrier island sandstones are separated further and grouped into two log facies, one consisting of highly productive facies (foreshore, shoreface, etc.) and the other, a less-productive facies (lower shoreface). The distinct crossplot pattern for each facies group is due to similar petrophysical properties of each facies group resulting from deposition within a unique depositional setting. Fluid production results from primary, secondary, and two EOR pilot projects indicate that in the barrier island reservoir at Bell Creek, the distribution of facies, with their characteristic reservoir properties and heterogeneities, dominates primary production, water floodsweep efficiency, distribution of residual oil saturation, and the performance of the chemical EOR pilot projects.
- OSTI ID:
- 6027478
- Journal Information:
- SPE Formation Evaluation (Society of Petroleum Engineers); (USA), Journal Name: SPE Formation Evaluation (Society of Petroleum Engineers); (USA) Vol. 5:4; ISSN 0885-923X; ISSN SFEVE
- Country of Publication:
- United States
- Language:
- English
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