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Rough Creek Graben Consortium Final Report

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Rough Creek Graben Consortium Final Report Kentucky Geological Survey James C. Cobb, State Geologist and Director University of Kentucky, Lexington Rough Creek Graben Consortium Final Report John Hickman Contract Report 55 Series XII, 2013 Our Mission Our mission is to increase knowledge and understanding of the mineral, energy, and water resources, geologic hazards, and geology of Kentucky for the benefit of the Commonwealth and Nation. © 2006 University of Kentucky Earth Resources—OurFor further information Common contact: Wealth Technology Transfer Officer Kentucky Geological Survey 228 Mining and Mineral Resources Building University of Kentucky Lexington, KY 40506-0107 www.uky.edu/kgs ISSN 0075-5591 Technical Level Technical Level General Intermediate Technical General Intermediate Technical Contents Executive Summary ....................................................................................................................................1 Goals ................................................................................................................................................1 Data Confidentiality ......................................................................................................................2 Study Area ......................................................................................................................................2 Project Data .....................................................................................................................................2 Summary and Major Conclusions ...............................................................................................2 Introduction .................................................................................................................................................3 Overview of Regional Stratigraphy and Tectonics ...................................................................3 Oil and Gas Exploration History .................................................................................................8 Data and Methods .....................................................................................................................................10 Well Data .......................................................................................................................................10 Seismic Data ..................................................................................................................................10 Time Horizons .................................................................................................................13 Velocity Analysis ............................................................................................................13 Potential Fields Data .......................................................................................................17 Faults ..............................................................................................................................................17 Mapping Techniques ...................................................................................................................19 Map Analysis .............................................................................................................................................23 Structure on the Top of the New Albany Shale .......................................................................23 Thickness of the New Albany Shale ..........................................................................................25 Structure on the Base of the New Albany Shale ......................................................................25 Thickness of the Interval Between the Base of the New Albany Shale and the Top of the Maquoketa Shale ...................................................................................................................25 Structure on the Top of the Maquoketa Shale .........................................................................27 Thickness of the Maquoketa Shale ............................................................................................27 Structure on the Base of the Maquoketa Shale ........................................................................27 Thickness of the Interval Between the Base of the Maquoketa Shale and the Top of the Knox Supergroup .........................................................................................................................28 Structure on the Top of the Knox Supergroup ........................................................................28 Thickness of the Knox Supergroup ...........................................................................................28 Structure on the Top of the Eau Claire Formation ..................................................................29 Thickness of the Eau Claire Formation .....................................................................................29 Structure on the Top of the Reelfoot Arkose............................................................................30 Thickness of the Reelfoot Arkose ..............................................................................................30 Structure on the Top of Precambrian Basement ......................................................................30 Well-Based Cross-Section Analysis ........................................................................................................31 Laboratory Sample Analysis ...................................................................................................................32 Well-Cuttings X-Ray Diffraction and Fluorescence ................................................................32 Hydrocarbon Samples .................................................................................................................32 Additional Analyses ....................................................................................................................41 Discussion ..................................................................................................................................................41 Kinematic Structural and Tectonic Analysis ............................................................................41 Petroleum Systems Analysis ......................................................................................................45 New Albany Shale ..........................................................................................................45 Organic Content .................................................................................................45 Overburden/Burial ...........................................................................................45 Hydrocarbon Generation/Migration .............................................................46 Reservoir .............................................................................................................46 Contents (continued) Trap/Seal ............................................................................................................47 Maquoketa Shale .............................................................................................................47 Organic Content .................................................................................................47 Overburden/Burial ...........................................................................................47 Hydrocarbon Generation/Migration .............................................................48 Reservoir .............................................................................................................48 Trap/Seal ............................................................................................................49 Eau Claire Formation .....................................................................................................49 Organic Content .................................................................................................49 Overburden/Burial ...........................................................................................51 Hydrocarbon Generation/Migration .............................................................51 Reservoirs ............................................................................................................52 Trap and Seal ......................................................................................................53 Untested Zones of Higher Potential for Deep Gas Production ..........................................................53 Southern Shelf Edge ....................................................................................................................53 Eastern Limb of the Tolu Arch/Fluorspar Uplift ....................................................................55 Owensboro Graben Spillway .....................................................................................................56 Slope-to-Flat Transition Zone in Hart County .........................................................................56 References Cited ........................................................................................................................................59 Figures 1. Map showing locations of interpreted Precambrian rifts in the southern Illinois Basin .....4 2. Generalized Precambrian subcrop map for the project area ...................................................5 3. Time scale and stratigraphy used in
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