RI-36 is a peer-reviewed study in which more than 270 digital well log suites were evaluated to estimate original gas-in-place (OGIP) for the Marcellus organic-rich shale play in West Virginia. Observed and predicted Marcellus production are taken into account and in-place estimates are calibrated accordingly. The study also examines the Geneseo-Burket and introduces the idea of a Marcellus Reservoir Unit and a separate Geneseo-Burket Reservoir Unit. Marcellus OGIP volumes are higher than those in other recent studies but are reasonable given production and calculated recovery efficiencies.
RI-35 is a peer-reviewed study that addresses the distribution and thickness of formally and informally recognized Middle and Upper Devonian rock strata in West Virginia with focus on the Marcellus and other organic-rich shales. Nearly 400 wells were studied, primarily using gamma-ray geophysical well logs, to develop a statewide formalization of the lithostratigraphic nomenclature as described in a report and detailed in a series of cross-sections and isochore maps. All products are available online below. Results from the study may prove useful given continued interest in Appalachian basin hydrocarbon resource development.
WV Geological & Economic Survey
ABSTRACT 
REPORT* 
.pdf (8.6 MB) 
OTHER RELATED RESOURCES 
ABSTRACT AND OVERVIEW 
REPORT 
CROSS-SECTIONS 
INTERACTIVE MAP** 
DATA** 
.xlsx (277 KB) 
