Organic geochemistry and oil-source correlations, Paleozoic of Ohio

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)

OSTI ID:5923684

Cole, G A; Drozd, R J; Sedivy, R A; Halpern, H I

Routine analytical methods and new kerogen-kerogen pyrolyzate techniques used for detailed petroleum geochemical studies permit the correlation of oils to their respective source rocks in Ohio. In the Paleozoic section, four good to excellent source units were identified: the Mississippian Sunbury Shale, the Devonian Ohio Shale and Olentangy Shale, and the shales of the Ordovician Point Pleasant Formation. These marine shales are dominantly oil-prone, with maturation levels that span the immature to peak oil-generation range. The reservoired oils in Ohio are mostly supermature, based on normal alkanes, pristane/n-C/sub 17/ to phytane/n-C/sub 18/ ratios, low asphaltene and sulfur contents, and high paraffin indices. Three basic oil groups were identified using oil characterization procedures: group 1 consists of Cambrian, Ordovician, and some Silurian oils; group 2 consists of some Silurian, Devonian, one Mississippian, and some Pennsylvanian oils; and group 3 consists of oil from the Mississippian Berea sandstone. Oil-source rock correlation techniques permitted the assignment of probable source rocks to each oil group. Group 1 oil was probably derived from the Point Pleasant shales, group 2 oil was derived from the Ohio Shale and Olentangy Shale, and group 3 oil came from the Sunbury Shale.

• Research Organization: Standard Oil Production Co., Irving, TX
• OSTI ID: 5923684
• Journal Information: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States), Journal Name: AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States) Vol. 71:7; ISSN AABUD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
023000 -- Petroleum-- Properties & Composition
AGE ESTIMATION
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMISTRY
ENERGY SOURCES
FEDERAL REGION V
FOSSIL FUELS
FUELS
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
KEROGEN
MATERIALS
MATURATION
MIGRATION
MINERAL RESOURCES
NORTH AMERICA
OHIO
ORGANIC MATTER
ORIGIN
PALEOZOIC ERA
PETROLEUM
PETROLEUM DEPOSITS
RESOURCES
SOURCE ROCKS
USA