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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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The Clinton sandstone (Silurian:Albion) is a major producing horizon throughout eastern Ohio. It accounts for 75% of total drilling activity in the state in recent years. The middle member of the Clinton, the Red, has caused problems for drillers in Holmes County, Ohio; rapid changes in thickness and porosity create wide differentials in production between closely spaced adjacent wells. A detailed analysis of Red Clinton variation in this area would be helpful for better direction of exploration and development programs.
On the basis of more than 1,100 drillers' and geophysical logs, structural, isopach, and porosity interpretations were assembled for the Red Clinton in Holmes County. Data analysis indicates that the Red Clinton is arranged in a number of multiple bar systems trending east-west to northeast-southwest throughout the county. Production statistics show that thickness and porosity of the Red Clinton is relatively good in the cleaner bar sands, whereas thinner, finer grained, more argillaceous interbar sands yield poorer producers or dry holes. Use of this depositional model clarifies the nature of controls on directional variation in thickness and porosity in the Clinton and facilitates prediction of production trends.
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