PETROGRAPHY OF TRENTON/BLACK RIVER CARBONATE RESERVOIRS, APPALACHIAN BASIN
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Transcript of PETROGRAPHY OF TRENTON/BLACK RIVER CARBONATE RESERVOIRS, APPALACHIAN BASIN
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PETROGRAPHY OF PETROGRAPHY OF TRENTON/BLACK RIVER TRENTON/BLACK RIVER
CARBONATE RESERVOIRS, CARBONATE RESERVOIRS, APPALACHIAN BASINAPPALACHIAN BASIN
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PETROGRAPHY - PURPOSE
• Enhance field studies and core descriptions:– Identification of
constituent grains
– Detailed classification of reservoir rocks
– Interpretation of depositional environments
• Diagenesis– Timing of significant
diagenetic events (i.e., cementation or secondary porosity development relative to the emplacement of hydrocarbons)
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PETROGRAPHY - PURPOSE
• Frame of reference for geochemical studies– Dolomitization
processes:• Stable isotopes
• Fluid inclusions
• 87Sr/ 86Sr
• Trace elements
– Source rock studies
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CORE AND OUTCROP SAMPLING PROGRESS AS OF
JUNE, 2004
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OH3372/1843.4 ft.
FRACTURED DOLOSTONE
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OH3372/1823 ft.
FRACTURED DOLOSTONE
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OH3372/1860 ft.
OH3372/1837.6 ft.
DOLOMITIZED, BIOTURBATED MUDSTONE AND WACKESTONE
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DOLOMITIZED, BIOTURBATED MUDSTONE AND WACKESTONE
OH3372/1840 ft.
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OH3479/1337.8 ft
HYDROTHERMAL DOLOSTONE
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OH3276/1174 ft.
HYDROTHERMAL DOLOMITE
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OH3276/1174 ft.
HYDROTHERMAL DOLOMITE
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OH3372/1822.9 ft.
SADDLE DOLOMITE IN VUG
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SADDLE DOLOMITE
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