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Reservoir Analysis of the Clinton Interval in Stark and Summit Counties, Ohio

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Reservoir Analysis of the Clinton Interval in Stark and Summit Counties, Ohio Wright State University CORE Scholar Browse all Theses and Dissertations Theses and Dissertations 2010 Reservoir Analysis of The Clinton Interval in Stark and Summit Counties, Ohio Dominick Andrew Wytovich Wright State University Follow this and additional works at: https://corescholar.libraries.wright.edu/etd_all Part of the Earth Sciences Commons, and the Environmental Sciences Commons Repository Citation Wytovich, Dominick Andrew, "Reservoir Analysis of The Clinton Interval in Stark and Summit Counties, Ohio" (2010). Browse all Theses and Dissertations. 339. https://corescholar.libraries.wright.edu/etd_all/339 This Thesis is brought to you for free and open access by the Theses and Dissertations at CORE Scholar. It has been accepted for inclusion in Browse all Theses and Dissertations by an authorized administrator of CORE Scholar. For more information, please contact [email protected]. RESERVOIR ANALYSIS OF THE CLINTON INTERVAL IN STARK AND SUMMIT COUNTIES, OHIO A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science By DOMINICK A. WYTOVICH B.S., Juniata College, 2008 2010 Wright State University WRIGHT STATE UNIVERSITY SCHOOL OF GRADUATE STUDIES JUNE 7, 2010 I HEREBY RECOMMEND THAT THE THESIS PREPARED UNDER MY SUPERVISON BY Dominick Andrew Wytovich ENTITLED RESERVOIR ANALYSIS OF THE CLINTON INTERVAL IN STARK AND SUMMIT COUNTIES, OHIO BE ACCEPTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Science. _______________________________ Doyle R. Watts, Ph.D. Thesis Director _______________________________ David Dominic, Ph.D. Department Chair Committee on Final Examination ___________________________ Doyle R. Watts, Ph. D. ___________________________ Ernest Hauser, Ph.D ___________________________ David Dominic, Ph.D. ___________________________ John A. Bantle, Ph.D. Vice President for Research and Graduate Studies and Interim Dean of Graduate Studies ABSTRACT Wytovich, Dominick A., M.S., Department of Earth and Environmental Sciences, Wright State, 2010. Reservoir Analysis of the Clinton Interval in Stark and Summit Counties, Ohio The characteristics of a sandstone reservoir of Silurian age (the “Clinton interval”) were analyzed using 382 geophysical well logs from the Dominion Gas storage field located in Stark and Summit Counties, Ohio. These sandstones have long been identified by the informal drillers’ terms, White, Red, and Stray Clinton. Gamma ray logs were used to analyze the distribution of net stand thickness and its relation to initial production through the construction of isopach and net sand isolith maps. I constructed eight cross sections to identify and correlate the tops of three prominent sandstones and two marine flooding surfaces to evaluate reservoir compartmentalization and stratigraphic controls on production. The data indicate that areas with higher production are not entirely controlled by lithology. The seismic signature of the Clinton interval is controlled by thin bed tuning associated with side lobe interference. Multiple seismic signatures are created by differences in velocity and lithologic thickness. iii TABLE OF CONTENTS Page 1.0 INTRODUCTION ...................................................................................................... 1 1.1 Clinton Interval Description and Location ........................................................... 2 1.2 Previous Investigation of the Clinton Throughout Ohio....................................... 4 1.2.1 Structural and Stratigraphic Setting ................................................. 4 1.2.2 Reservoir Units ...................................................................................... 4 1.2.3 Production .............................................................................................. 5 1.2.4 Lithology ................................................................................................ 6 1.2.5 Depositional History .............................................................................. 7 1.2.6 Seismic ................................................................................................... 8 2.0 DATA COLLECTION AND PREPARATION ......................................................... 9 2.1 Petrel Stratigraphic Tops Interpretation ...............................................................10 3.0 RESERVOIR COMPARTMENTALIZATION ........................................................12 3.1 Northwest Southeast Dip Sections .......................................................................14 3.2 North South Strike Sections .................................................................................15 4.0 CLINTON INTERVAL ISOPACH MAPS ...............................................................17 5.0 CLINTON INTERVAL NET SAND ISOLITH MAPS ............................................28 5.1 Normalization of Gamma-Ray Curve ..................................................................28 5.2 Discrete Log .........................................................................................................29 5.3 Clinton Interval Isoliths greater than 50% Clean Sand ........................................29 iv 5.4 Clinton Interval Isoliths greater than 75% Clean Sand ........................................40 6.0 PRODUCTION VS. LITHOLOGY INTERPRETATION ........................................50 7.0 DEPOSTIONAL ENVIRONMENT INTERPRETATION .......................................57 8.0 FORWARD SEISMIC MODELING AND INTERPRETATION ............................62 8.1 Constant lithology, thickness, and velocity .........................................................62 8.2 Constant thickness with lateral velocity variation ...............................................64 8.3 Thickness variation with constant velocity ..........................................................65 8.4 Thickness and lateral velocity variations .............................................................66 8.5 Synthetic seismic replication of Clinton interval .................................................68 9.0 SUMMARY AND CONCLUSIONS ........................................................................75 10.0 REFERENCES ........................................................................................................77 11.0 APPENDIX A ..........................................................................................................79 v LIST OF FIGURES FIGURE PAGE 1.1 Map of Study Location Showing Stark and Summit Counties, Ohio ........................3 2.1 Gamma Ray Type Log ...............................................................................................11 3.1 Numbered Cross Section Locations throughout Study Area .....................................13 4.1 Clinton Interval Colored Isopach Map ......................................................................18 4.2 Clinton Interval Isopach Map ....................................................................................19 4.3 White Clinton Colored Isopach Map .........................................................................22 4.4 White Clinton Isopach Map .......................................................................................23 4.5 Red Clinton Colored Isopach Map ............................................................................24 4.6 Red Clinton Isopach Map ..........................................................................................25 4.7 Stray Clinton Colored Isopach Map ..........................................................................26 4.8 Stray Clinton Isopach Map ........................................................................................27 5.1 Clinton Interval Colored Isolith Map greater than 50% Clean Sand .........................30 5.2 Clinton Interval Isolith Map greater than 50% Clean Sand .......................................31 5.3 White Clinton Colored Isolith Map greater than 50% Clean Sand ............................34 5.4 White Clinton Isolith Map greater than 50% Clean Sand..........................................35 5.5 Red Clinton Colored Isolith Map greater than 50% Clean Sand ...............................36 5.6 Red Clinton Isolith Map greater than 50% Clean Sand .............................................37 5.7 Stray Clinton Colored Isolith Map greater than 50% Clean Sand .............................38 5.8 Stray Clinton Isolith Map greater than 50% Clean Sand ...........................................39 vi 5.9 Clinton Interval Colored Isolith Map greater than 75% Clean Sand .........................41 5.10 Clinton Interval Isolith Map greater than 75% Clean Sand .....................................42 5.11 White Clinton Colored Isolith Map greater than 75% Clean Sand ..........................43 5.12 White Clinton Isolith Map greater than 75% Clean Sand ........................................44 5.13 Red Clinton Colored Isolith Map greater than 75% Clean Sand .............................46 5.14 Red Clinton Isolith Map greater than 75% Clean Sand ...........................................47 5.15 Stray Clinton Colored Isolith Map greater than 75% Clean Sand ...........................48 5.16 Stray Clinton Isolith Map greater than 75% Clean Sand .........................................49 6.1 Clinton Interval Initial Production Values Colored Contour .....................................51 6.2 Clinton Interval Initial Production Values .................................................................52 6.3 Graph of the Clinton
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