Intergrated study of the Devonian-age black shales in eastern Ohio. Final report
This integrated study of the Devonian-age shales in eastern Ohio by the Ohio Department of Natural Resources, Division of Geological Survey is part of the Eastern Gas Shales Project sponsored by the US Department of Energy. The six areas of research included in the study are: (1) detailed stratigraphic mapping, (2) detailed structure mapping, (3) mineralogic and petrographic characterization, (4) geochemical characterization, (5) fracture trace and lineament analysis, and (6) a gas-show monitoring program. The data generated by the study provide a basis for assessing the most promising stratigraphic horizons for occurrences of natural gas within the Devonian shale sequence and the most favorable geographic areas of the state for natural gas exploration and should be useful in the planning and design of production-stimulation techniques. Four major radioactive units in the Devonian shale sequence are believed to be important source rocks and reservoir beds for natural gas. In order of potential for development as an unconventional gas resource, they are (1) lower and upper radioactive facies of the Huron Shale Member of the Ohio Shale, (2) upper Olentangy Shale (Rhinestreet facies equivalent), (3) Cleveland Shale Member of the Ohio Shale, and (4) lower Olentangy Shale (Marcellus facies equivalent). These primary exploration targets are recommended on the basis of areal distribution, net thickness of radioactive shale, shows of natural gas, and drilling depth to the radioactive unit. Fracture trends indicate prospective areas for Devonian shale reservoirs. Good geological prospects in the Devonian shales should be located where the fracture trends coincide with thick sequences of organic-rich highly radioactive shale.
- Research Organization:
- Ohio Dept. of Natural Resources, Columbus (USA). Div. of Geological Survey
- DOE Contract Number:
- AS21-76ET12131
- OSTI ID:
- 5841004
- Report Number(s):
- DOE/ET/12131-1399; ON: DE83011204
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
58 GEOSCIENCES
BLACK SHALES
GEOCHEMISTRY
MAPPING
MINERALOGY
PETROGRAPHY
STRATIGRAPHY
NATURAL GAS DEPOSITS
EXPLORATION
OHIO
DATA COMPILATION
DEVONIAN PERIOD
FRACTURES
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHATTANOOGA FORMATION
CHEMISTRY
DATA
ENERGY SOURCES
FAILURES
FEDERAL REGION V
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGY
INFORMATION
MATERIALS
MINERAL RESOURCES
NORTH AMERICA
NUMERICAL DATA
OIL SHALES
PALEOZOIC ERA
RESOURCES
USA
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