Page 171 - Basic Well Log Analysis for Geologist
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LOG INTERPRETATION CASE STUDIES
TENS (LB)
CALI (IN) OT (US/F)
, 40.00
GR (8API) sPHt( }
~ “LIMESTONE ~~ 0.100
Figure 64. Sonic log with gamma ray log and caliper, Mississippian Mission Canyon Formation, Williston basin.
From a depth of 9,308 to 9,408, note:
The numerous porosity zones indicated by the increasing interval transit time (At) on tracks #2 and #3.