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Significant problems arise in the interpretation of wire-line logs from diagenetically altered rocks. How does one interpret a zone that on the logs appears water filled or noncommercial? Is the zone truly water filled? If the zone is water filled, does it serve as a seal for a downdip hydrocarbon accumulation?
An understanding of the degree of diagenesis and its timing will allow the wire-line logs to be interpreted in the proper manner and will prevent the abandoning of potentially productive wells and lead to the discovery of hydrocarbons held in diagenetic traps.
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