Six Potential Trapping Plays in the Ordovician Trenton Limestone, Northwestern Ohio1
Alan H. Coogan, Marilyn Maxey Parker, 1988. "Six Potential Trapping Plays in the Ordovician Trenton Limestone, Northwestern Ohio", The Trenton Group (Upper Ordovician Series) of Eastern North America: Deposition, Diagenesis, and Petroleum, Brain D. Keith
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Six potential trapping plays in northwestern Ohio are recognized in the Trenton Limestone reservoir of the Lima-Indiana Field and surrounding areas. The six plays are: 1) simple anticlinal traps, 2) faulted anticlines, 3) updip facies change, 4) dolomitization along fracture trends, 5) porosity-permeability traps and 6) small anticlinal noses. Limited production records suggest that fracture-enhanced plays are the most productive of oil and gas.
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The Trenton Group (Upper Ordovician Series) of Eastern North America: Deposition, Diagenesis, and Petroleum
Regional facies for the Upper Ordovician Series (global classification) of eastern North America consist of clean (pure) carbonates, mixed carbonates and terrigenous clastics, shale, terrigenous clastics coarser than shale, and terrigenous clastics prograding over carbonates. The last facies is characteristic of the Upper Ordovician. Maps and cross sections for stages of the Upper Ordovician demonstrate the influence of regional tectonic events on the sedimentation pattern of these facies.