Petrophysical reinterpretation finds gas in place underestimation off Egypt

12/16/2002
Ha'py field lies in the Mediterranean Sea off Egypt and is part of the Pliocene producing trend north of the Nile Delta. The original interpretation for the gas in place for Ha'py field by Amoco and others was 989 bcf. Re-evaluation of the field led to a gas in place estimate of 2,045 bcf.Subsequent production in the field has substantiated the higher gas in place estimate under the re-evaluation.The initial underestimation of the gas in place was a result of the use of an incorrect log-derived porosity model. This porosity model is not compatible with the petrophysical water saturation relationship used.The incompatibility stems from the fact that petroleum engineers and petrophy...
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