Seismic-geochemical exploration mix reveals Ordovician dolomite chimneys

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Hart`s Oil and Gas World

OSTI ID:91034

Tedesco, S A ^[1]

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1. Atoka Geochemical Services Corp., Englewood, CO (United States)

The Cincinnati, Findlay and Algonquin arch system extends from central Tennessee to southern Ontario, and along this trend are found shallow but prolific dolomite breccias, or chimneys, or Ordovician age. The reservoirs are difficult to explore for and, until the discovery of Stoney Point Field in 1983, were essentially found by accident. The Stoney Point Field in southern Michigan was found by an integrated approach utilizing surface geochemical and seismic methods. In southern Ontario, central Kentucky and Tennessee, the use of 2-D, 2-D swathe and, most recently, 3-D seismic surveys in conjunction with surface geochemistry has caused, sustained and increased success rates for exploration for these types of reserves. The Stoney Point Field was discovered using seismic and four surface geochemical methods. A dry hole was drilled first, and its location was based on seismic. Subsequently, a new location was drilled 100 feet to the west and encountered thick pay and is productive. These two wells and their close proximity indicate the difficulty in exploring for these reservoirs and the need for an integrated approach.

• OSTI ID: 91034
• Journal Information: Hart`s Oil and Gas World, Journal Name: Hart`s Oil and Gas World Journal Issue: 7 Vol. 87; ISSN 1075-5365; ISSN HOGWF6
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DOLOMITE
EXPLORATION
EXPLORATORY WELLS
GEOCHEMICAL SURVEYS
GEOCHEMISTRY
ORDOVICIAN PERIOD
PETROLEUM DEPOSITS
SEISMIC SURVEYS
WELL DRILLING