--> Utica Petroleum System Mapping

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Utica Petroleum System Mapping

Abstract

The U.S. Energy Information Administration (EIA) is in the process of updating maps of the major low permeability oil and gas plays of the lower 48 states using publically available data and commercial well-level databases (Drilling Info Inc. and IHS Inc.). As a part of these efforts EIA has generated updated maps that characterize the structure, thickness, and geologic setting of the Utica play. The Utica petroleum system includes the Utica formation and the underlying Point Pleasant and Logana formations. Each formation holds its own significance and characteristics so maps have been produced for each individually, and as for the entire interval. Data from 1,479 producing oil and gas wells across New York, Ohio, Pennsylvania, and West Virginia were assessed for geologic properties related to initial production and daily production volumes. Production profiles, gas-to-oil ratios, and recovery factors vary laterally and across three major Utica play stratigraphic units, Utica, Point Pleasant, and Logana formations. EIA's collection of thematic maps helps explain the location of “sweet spots” within the play area, distribution of oil-rich and gas-rich wells across the play extent, as well as forecast production trends.