Skip to main content
U.S. flag

An official website of the United States government

Characterization of the Helderberg Group as a geologic seal for CO 2 sequestration

January 1, 2009

The Midwest Regional Carbon Sequestration Partnership recognizes that both the Devonian Oriskany Sandstone and the Silurian Salina Group offer potential for subsurface carbon dioxide storage in northern West Virginia. The Silurian-Devonian Helderberg Group lies stratigraphically between these two units, and consequendy, its potential as a geologic seal must be evaluated. Predominantly a carbonate interval with minor interbedded siliciclastics and chert, the Helderberg Group was deposited in an ancient epeiric sea. Although most previous investigations of this unit have concentrated on outcrops in eastern West Virginia, new information is available from an injection well drilled along the Ohio River at First Energy's R. E. Burger electric power plant near Shadyside, Ohio. Geophysical, seismic, and core data from this well have been combined with existing outcrop information to evaluate the Helderberg Group's potential as a seal. The data collected suggest that only secondary porosity remains, and permeability, if it exists, most likely occurs along faults or within fractures. ?? 2009. The American Association of Petroleum Geologists/Division of Environmental Geosciences. All rights reserved.

Citation Information

Publication Year 2009
Title Characterization of the Helderberg Group as a geologic seal for CO 2 sequestration
DOI 10.1306/eg.04080909003
Authors J.E. Lewis, R.R. McDowell, K.L. Avary, K.M. Carter
Publication Type Article
Publication Subtype Journal Article
Series Title Environmental Geosciences
Index ID 70035404
Record Source USGS Publications Warehouse