AAPG Southwest Section presents the 2017 Bill Hailey Memorial Short Course "Controls on Carbonate Play Development in the Paleozoic of West Texas and New Mexico" by Jeffrey J. Davis
Abstract available at www.southwestsection.org
Monday, January 9th
Pioneer Drive Bapist Church
701 Pioneer Drive, Abeline TX
8:30am Morning Program
1:00pm Afternoon Program
Concludes at 5pm
Walk-up registration will be accepted with no guarantee for short-course materials.
To register, complete and mail the form attached with payment. To assure the availability of lunch, seating, and course materials, forms must be submitted by January 3rd for ABELINE (December 15th for FORT WORTH)
Download registration form here.
Speaker Jeffrey J. Dravis
SUMMARY A carbonate play is the juxtaposition of a limestone or dolostone reservoir facies sealed by a carbonate or shale facies, with its hydrocarbons sourced from a nearby organic-rich carbonate or siliciclastic mudstone. Understanding the controls on carbonate play type distribution and geometry is critical to more successful exploration in ...
SUMMARY A carbonate play is the juxtaposition of a limestone or dolostone reservoir facies sealed by a carbonate or shale facies, with its hydrocarbons sourced from a nearby organic-rich carbonate or siliciclastic mudstone. Understanding the controls on carbonate play type distribution and geometry is critical to more successful exploration in any basin. As such, delineating potential carbonate plays from seismic or wireline logs requires a sound understanding of the depositional and diagenetic controls that create the reservoir facies, but it must be obtained within the context of geological age and physiographic setting. Specifically, one must appreciate the environmental controls on carbonate facies development, and potential pathways for diagenesis and porosity evolution. For this reason, strategies employed in the search for sandstone or mudstone reservoirs never work for carbonate sequences, including application of sequence stratigraphic models that assume sea level changes overridingly control carbonate facies and sequence evolution. This one-day short course reviews the key controls on carbonate facies occurrence and distribution, and demonstrates the strong influence of physiographic setting, both at the global and local scale. Because most carbonate reservoirs were developed within tropical or subtropical settings, paleotrade winds often were a major influence on their occurrence and distribution. In addition, the key controls influencing limestone diagenesis and dolomitization are reviewed, but with focused emphasis on how porosity and permeability evolve. The diagenesis discussion also will stress how to resolve the relative timing of secondary porosity development in these carbonates, which is key to exploiting regional porosity trends. The diagenesis discussion will further evaluate the role that deep-seated faulting often plays in carbonate diagenesis and development of reservoir quality, as well as hydrocarbon entrapment. This short course culminates with a discussion relating carbonate play type occurrence, geometry and distribution to geological age, but in the context of physiographic setting (platform versus ramp). This approach will be supported by case studies from different basins, and then applied to Paleozoic play type examples from West Texas and New Mexico.
- Introductory Comments (Distinctive Aspects of Carbonates; Constituents and Textures; Classification Schemes)
- Limestone Diagenesis and Porosity Evolution: Controls, Processes and Products, and Timing
- Dolomitization: Popular Models; Porosity Evolution and Timing Relationships.
- Carbonate Facies: Controls and Attributes; Review of Carbonate Facies Models
- Established (Rock-Based) Principles of Carbonate Depositional Sequences and Cyclicity
- Classification of Carbonate Play Types and Analogs, with Applications to the Paleozoic of West Texas and New Mexico