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3. The following logs show GR, SP, density and resistivity log run in a Louisiana well. 12 zones were marked for analysis in the GR and SP log. Perform a GR vs. SP log analysis. a) Which zones represent relatively clean sands? Which zones represent shaly sands? b) One of the 12 zones considered is abnormal, i.e. it does not fall in either of the two previous patterns. Which zone is it? How does it differ from the other zones? What is the nature of its abnormality? Explain using all available information. c) Which is the cleanest sand? Explain.

3. The following logs show GR, SP, density and resistivity log run in a Louisiana well. 12 zones were marked for analysis in the GR and SP log. Perform a GR vs. SP log analysis. a) Which zones represent relatively clean sands? Which zones represent shaly sands? b) One of the 12 zones considered is abnormal, i.e. it does not fall in either of the two previous patterns. Which zone is it? How does it differ from the other zones? What is the nature of its abnormality? Explain using all available information. c) Which is the cleanest sand? Explain.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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3. The following logs show GR, SP, density and resistivity log run in a Louisiana well. 12 zones were marked for analysis in the GR and SP log. Perform a GR vs. SP log analysis. a) Which zones represent relatively clean sands? Which zones represent shaly sands? b) One of the 12 zones considered is abnormal, i.e. it does not fall in either of the two previous patterns. Which zone is it? How does it differ from the other zones? What is the nature of its abnormality? Explain using all available information. c) Which is the cleanest sand? Explain. GAMMA RAY, BULK DENSITY SHORT NORNAL SPONTANEOUS POTENTIAL CALIPER 40 INDUCTION 10 12 12
Transcribed Image Text:3. The following logs show GR, SP, density and resistivity log run in a Louisiana well. 12 zones were marked for analysis in the GR and SP log. Perform a GR vs. SP log analysis. a) Which zones represent relatively clean sands? Which zones represent shaly sands? b) One of the 12 zones considered is abnormal, i.e. it does not fall in either of the two previous patterns. Which zone is it? How does it differ from the other zones? What is the nature of its abnormality? Explain using all available information. c) Which is the cleanest sand? Explain. GAMMA RAY, BULK DENSITY SHORT NORNAL SPONTANEOUS POTENTIAL CALIPER 40 INDUCTION 10 12 12
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