Page 159 - Basic Well Log Analysis for Geologist
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LOG INTERPRETATION CASE STUDIES
SPONTANEOUS- POTENTIAL RESISTIVITY onms. mM
LATEROLOG
~ >| + MILL:VOLTS
MEDIUM INDUCTION
API UNITS
12 DEEP INDUCTION
250 . : 10 100
15962
DEPTH
RMF at meas. temp.' 1.34 at 87°F
3.34 at B7°F
RMC at meas.
BIT SIZE
8-1/2
MAX. REC. TEMP.
197° F
T¥PE FLUID IN HOLE] FRESH MUD
RM at meas femp. | 1.67 at 87° F
Figure 54.00 Dual Induction Laterolog* with Spontaneous Potential and Gamma Ray Log, Pennsylvanian Atoka Sandstone.
Permian basin. Values from this log are used in work Table A.
Ata depth of 14.600 to 14,625 ft. note:
to High resistivities on resistivity logs in tracks #2 and #3.
Hydrocarbon suppression of SP log in track #1 (solid line).
ad Gamma ray log (track #1 dashed line) has lower gamma ray count in Atoka Sandstone interval because sands
have lower radioactivity than shales.
144
