Page 206 - Basic Well Log Analysis for Geologist
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LOG INTERPRETATION CASE STUDIES
CALIPER iam ww incues CORRECTION ORAMA, OU
Use thus seale when correction
urve is presented in Track 3
GAMMA RAY ap) units
BULK DENSITY GRAMS /00
Ben
at meas temo | 226 at 6
at meas temp | sat __.
2
2 ome Teme
.
ae.
—
| 99° F
Rec Temp
ype Fluid in hola (FGM
Max
m at meas tamp | 2 53 a1 65° F
Figure 94. Density log with gamma ray log and caliper, Cretaceous Pictured Cliffs Sandstone, San Juan basin.
Note:
Decrease in hole diameter (1,926 to 1.958 ft) on caliper log in track # | indicating mudcake (permeability).
Low bulk densities on the density log in tracks #2 and #3 indicating porosity.
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