--> Integrated Sub-Basin Scale Exploration for Carbon Storage Targets: Advanced Characterization of Geologic Reservoirs and Caprocks in the Upper Ohio River Valley

AAPG Eastern Section Meeting

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Integrated Sub-Basin Scale Exploration for Carbon Storage Targets: Advanced Characterization of Geologic Reservoirs and Caprocks in the Upper Ohio River Valley

Erica Howat1, Neeraj Gupta1, Mark Kelley1, Jared Hawkins1, Autumn Haagsma1, Isis Fukai1, Amber Conner1, Oladipupo Babarinde1, Glenn E. Larsen1, Joel Main1, Caitlin McNeil1, Jacqueline Gerst1 and E. Charlotte Sullivan2

1 Battelle Memorial Institute, 505 King Avenue, Columbus Ohio, 43201
2 Pacific Northwest National Laboratory

September 27, 2016 Tuesday 11:00 A.M. AAPG Eastern Section Meeting, Lexington, Kentucky

Abstract

The goal of this study was to collect and analyze geologic data for assessment of CO2 storage feasibility in the parts of Appalachian Basin covering eastern Ohio and the adjacent Midwestern area. The deep geology is relatively unknown as the formations are not prospective for oil and gas development. As such, very few deep wells have been drilled, logged and tested.

The research characterized potential caprocks and reservoirs. This required integration of numerous data sources including publicly available wireline logs, core data and production records, new log and core data through synergistic partnerships with local operators, the purchase of available seismic volumes and data from 10 new brine disposal wells in Ohio. Data collection included advanced wireline logs and core that helped characterize geomechanical, lithological, mineralogical, and geochemical properties of reservoirs and caprocks.

Basin scale mapping was performed to characterize structure, extent, and depths for selected geologic zones from Ordovician, Cambrian, and Precambrian formations. Petrophysical parameters including net to gross thickness, porosity, porosity feet and porosity-permeability relationships were evaluated for each formation. Petrophysical results indicated a formation's suitability as a storage resource or sealing formation. Conclusions suggest that both sands and carbonates in the Appalachian Basin are potential storage resources. The discontinuous nature of individual formations means that a series of stacked reservoirs and seals are needed to form the basis of the basin scale geologic carbon sequestration system. Ongoing static and dynamic modelling will demonstrate the ability of the stacked reservoir system to function for long-term CO2 storage.

AAPG Datapages/Search and Discovery Article #90258 © 2016 AAPG Eastern Section Meeting, Lexington, Kentucky, September 25-27, 2016