Six types of trap or reservoir-producing configurations in Trenton Limestone Reservoir, northwestern Ohio
Six types of petroleum-producing configurations are recognizable in the oil and gas fields of the Lima-Indiana trend whose reservoirs are the Trenton Limestone of Ordovician age. The six play configurations are the following: 1) an anticlinal trap along the crest of the Findlay arch. Here, as elsewhere, the seal and presumably the source are the overlying Utica Shale; 2) a faulted anticlinal trap on the western side of the Findlay arch. The fault, the Bowling Green fault, generally limits production to the upthrown eastern side; 3) an updip facies change from the Trenton Limestone into the overlying Utica Shale to the south; 4) fracture systems related to regional fracturing of the early Paleozoic rocks. Apparently these systems have provided fracture-enhanced reservoirs; 5) possible porosity-permeability traps, probably on structure, where dolomite is replaced laterally by dense limestone; and 6) small anticlinal terraces off the main arch system, related to minor production. These terraces appear as down-to-the-basin noses on structural maps. Considered together, the Lima-Indiana fields are a giant field extending 120 mi (193 km) in Ohio and another 50 mi (80 km) in Indiana. Before 1900, thousands of wells were drilled, as shallow as 1100 ft (334 m), producing over 220 million bbl of oil at initial rock pressures between 100 and 450 psi (690 and 3100 kPa). Exploration continues at a modest pace.
- Research Organization:
- Kent State Univ., OH
- OSTI ID:
- 5743950
- Report Number(s):
- CONF-8410269-
- Journal Information:
- Am. Assoc. Pet. Geol., Bull.; (United States), Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Vol. 68:12; ISSN AAPGB
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Lima-Indiana trend - Reservoir characterization
Indiana's Trenton limestone geology
Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
CARBONATE ROCKS
FEDERAL REGION V
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC TRAPS
GEOLOGY
LIMESTONE
MINERAL RESOURCES
NORTH AMERICA
OHIO
ORDOVICIAN PERIOD
PALEOZOIC ERA
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
ROCKS
SEDIMENTARY ROCKS
STRATIGRAPHY
USA