A well is drilled through a hydrocarbon-bearing formation which is at its irreducible water saturation and it has a porosity of 28%. Rock core data indicates that (a=0.81, m=2,and n=2). The mud used for drilling is water-base, with a salt concentration (NaCl) of 50,000 ppm. The connate water has a salt concentration (NaCl) of 20,000 ppm. The shallow and deep resistivity logs readings are 12 ohm-m and 50 Ohm-m respectively. You should assume that the deep resistivity tool will be sensing the virgin zone, which does not experience any mud-filtrate invasion, and that the shallow resistivity tool will be sensing the flushed zone. The formation temperature is 145° F. What is the hydrocarbon saturation of the formation and what is the water saturation in the flushed zone? 17. A well is drilled through a hydrocarbon-bearing formation which is at its irreducible water saturationand it has a porosity of 28%. Rock core data indicates that (a= 0.81, m=2, and n=2). The mud used fordrilling is water-base, with a salt concentration (NaCl) of 50,000 ppm.The connate water has a saltconcentration (NaCl) of 20,000 ppm. The shallow and deep resistivity logs readings are 3 ohm-m and 50ohm-m respectively. You should assume that the deep resistivity tool will be sensing the virgin zone,which does not experience any mud-filtrate invasion, and that the shallow resistivity tool will be sensingthe flushed zone. The formation temperature is 145 deg F. What is the hydrocarbon saturation of theformation and what is the water saturation in the flushed zone?

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Answered: 17. A well is drilled through a…

Chemistry

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A well is drilled through a hydrocarbon-bearing formation which is at its irreducible water saturation and it has a porosity of 28%. Rock core data indicates that (a=0.81, m=2,and n=2). The mud used for drilling is water-base, with a salt concentration (NaCl) of 50,000 ppm. The connate water has a salt concentration (NaCl) of 20,000 ppm. The shallow and deep resistivity logs readings are 12 ohm-m and 50 Ohm-m respectively. You should assume that the deep resistivity tool will be sensing the virgin zone, which does not experience any mud-filtrate invasion, and that the shallow resistivity tool will be sensing the flushed zone. The formation temperature is 145° F. What is the hydrocarbon saturation of the formation and what is the water saturation in the flushed zone?

17. A well is drilled through a hydrocarbon-bearing formation which is at its irreducible water saturation
and it has a porosity of 28%. Rock core data indicates that (a= 0.81, m=2, and n=2). The mud used for
drilling is water-base, with a salt concentration (NaCl) of 50,000 ppm.The connate water has a salt
concentration (NaCl) of 20,000 ppm. The shallow and deep resistivity logs readings are 3 ohm-m and 50
ohm-m respectively. You should assume that the deep resistivity tool will be sensing the virgin zone,
which does not experience any mud-filtrate invasion, and that the shallow resistivity tool will be sensing
the flushed zone. The formation temperature is 145 deg F. What is the hydrocarbon saturation of the
formation and what is the water saturation in the flushed zone?

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