Evaluation of Caprock Integrity of the Upper Ordovician Units within the CarbonSAFE Prefeasibility Study Region, Subtask 4.3 – Geological Characterization

Other · Thu May 23 00:00:00 EDT 2019

OSTI ID:1524067

Medina, Cristian ^[1]; Rupp, John ^[1]; Lahann, Richard ^[1]; Eldridge, Jayson ^[1]

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1. Indiana Univ., Bloomington, IN (United States)

In this report, the Indiana Geological and Water Survey (IGWS) evaluates the seal capacity of the Maquoketa Shale Group, a thick and heterogeneous sequence of carbonates, silts, and clay-rich rock units of Upper Ordovician age. This unit has been identified as a regional caprock that can effectively isolate the CO₂ stored in underlying reservoirs for secure sequestration. To accomplish this objective, the Maquoketa Group was assessed using two approaches: (1) development of a lithofacies/qualitative permeability model based on the combined wireline responses, and (2) analysis to characterize the pore size distribution and capillary entry pressures of the various lithologies in the unit using the mercury injection capillary pressure method.

• Research Organization: Univ. of Illinois at Urbana-Champaign, IL (United States)
• Sponsoring Organization: USDOE Office of Fossil Energy (FE), Clean Coal and Carbon Management
• DOE Contract Number: FE0029445
• OSTI ID: 1524067
• Report Number(s): DOE-FE0029445‐11
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
01 COAL, LIGNITE, AND PEAT
CarbonSAFE