Complex Lithofacies Relationships between the Ste. Genevieve and Paoli Limestones: Clarifying Reservoir Relationships in the Indiana Subsurface

Thumbnail Image
Files
EAAPG_Panel_1.pdf (1.45 MB)
EAAPG_Panel_2.pdf (2.1 MB)
If you need an accessible version of this item, please email your request to iusw@iu.edu so that they may create one and provide it to you.
Date
2009-09-22
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Permanent Link
https://hdl.handle.net/2022/6809
Abstract
Typically irregular vertical and lateral distribution of lithofacies within the Ste. Genevieve and Paoli Limestones (Mississippian Blue River Group) has historically resulted in the inaccurate correlation of uppermost Ste. Genevieve lithologies (Joppa Member) with Paoli units of similar composition and appearance (Aux Vases and Renault Members). The Joppa Member of the Ste. Genevieve thins northeastward toward the Illinois Basin margin, losing the distinctive log signature that characterizes this unit in more basinward locations. The Aux Vases and Renault Members of the Paoli Limestone also become difficult to distinguish from each other and from the Joppa Member in basin margin locations because of rapid changes in composition and bed distribution. As a consequence, many Ste. Genevieve and Paoli Limestone pay zones have been assigned to the wrong reservoir pool, sometimes within the same field. Pay zones from Ste. Genevieve and Paoli Limestone reservoirs were reassigned according to current stratigraphic divisions. These new correlations more accurately reflect spatial relationships within and between hydrocarbon pools, and could contribute to more effective reservoir management. Improved correlations should also provide a useful tool for future hydrocarbon exploration and development activities in Indiana. Our investigation also suggests that revisions to formal Ste. Genevieve-Paoli stratigraphic nomenclature should be considered.
Description
This poster was presented at the American Association of Petroleum Geologists (AAPG) Eastern Section Meeting in Evansville, Indiana,on September 22, 2009.
Keywords
complex pay zones, hydrocarbon reservoirs, Illinois Basin, complex stratigraphy, oil correlation, Aux Vases Member, Renault Member, Joppa Member, Paoli Llmestone, Indiana Geological Survey, Indiana, Ste. Genevieve Limestone, Blue River Group
Citation
DOI
Link(s) to data and video for this item
Relation
Rights
This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.5/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.
 http://creativecommons.org/licenses/by-nc-sa/2.5/
Type
Presentation
Collections
Posters - IGS