Paper No. 3
Presentation Time: 2:15 PM
WORKFLOW FOR STRATIGRAPHIC CHARACTERIZATION OF UNCONVENTIONAL GAS SHALES
SLATT, Roger M., ConocoPhillips School of Geology & Geophysics, The University of Oklahoma, 810 Sarkeys Energy Center, 100 E. Boyd Street, Norman, OK 73019-1009, SINGH, Prerna, Chevron Energy Technology Company, 1500 Louisiana Street, Houston, TX 77002, PHILP, R. Paul, ConocoPhillips School of Geology and Geophysics, The University of Oklahoma, 810 Sarkeys Energy Center, 100 E. Boyd Street, Norman, OK 73019, SAISON, Anne, School of Geology and Geophysics, The University of Oklahoma, 100 E. Boyd St, Rm 810, Norman, OK 73019, ABOUSLEIMAN, Younane, Rock Mechanics Institute and School of Civil Engineering & Environmental Science, University of Oklahoma, Sarkeys Energy Center - P119, 100 E.Boyd Street, Norman, OK 73019-1014, O'BRIEN, Neal R., Department of Geology, State University of New York, College at Potsdam, 44 Pierrepont Ave, Potsdam, NY 13676 and ESLINGER, Eric, School of Mathematics and Sciences, The College of Saint Rose, 432 Western Avenue, Albany, NY 12203-1490, rslatt@ou.edu
Based upon multidisciplinary research over the past few years, our unconventional gas shale team has developed a workflow for evaluating the origin and exploitation of unconventional gas shales. This workflow---which is presented here, with examples---integrates sedimentology, petrography, high resolution scanning electron microscopy, lithostratigraphy, geochemistry, biostratigraphy, well log analysis (including borehole image logs), 3D seismic processing and interpretation, geomechanics, petrophysics, and geostatistics.
One of the significant findings of our research has been the realization that established sequence stratigraphic principles at the systems tract to parasequence scales can be applied to characterize unconventional gas shales. These principles can be applied for (1) regional to local correlation and mapping of shale parasequences, (2) determining stratigraphic-mineralogic-geochemical-geomechanical-petrophysical interrelationships, and (3) predicting most favorable stratigraphic units for gas accumulation and exploitation. In addition to providing a better understanding of the evolution of shales and their contained gas, educational opportunities are being provided to university students who can be integrated into the oil and gas industry to actively participate in the exploration for, and exploitation of this growing global energy resource.
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