Integrated approach in exploring for dolomite breccias along the Cincinnati arch, eastern US
Conference
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OSTI ID:542965
Dolomite breccias or chimneys occur in Lower to Middle Ordovician rocks from Tennessee to southwestern Ontario along the Cincinnati Arch and also extend into adjacent basins. These Breccias are prolific hydrocarbon reservoirs, typically producing 100,000 to 500,000 bbls per well on 20 acres and from less than 5,000 feet. Historically, many of the breccias such as Albion-Scipio (150 + MMbbls BOE), Wood-Hancock Complex (155 + MMbbls BOE), and Dover (1 + MMbbls BOE) fields were discovered by accident. Six characteristics are consistently associated with the chimneys. Breccias are (1) found in synclines, (2) secondary dolomite encased in dense non-porous carbonates, (3) associated with basement faulting, (4) related to a thickening of overlying strata; (5) thick reservoirs of 100 to 800 feet, and (6) narrow in width and elongated in length.
- OSTI ID:
- 542965
- Report Number(s):
- CONF-951013--
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:7018008