Page 87 - Basic Well Log Analysis for Geologist
P. 87
POROSITY “ous
POROSITY EVALUATION FROM SONIC
POROSITY EVALUATION FROM t¢
50 T
+ Vv, = 5,300 ft/sec
p.u. p.u.
POROSITY, POROSITY,
¢, ¢,
© Schlumberger
90 100 110 120
zt, INTERVAL TRANSIT TIME, microsec/ ft
Vina (ft/sec) 4 ma (microsec/ ft)
Sandstones 18,000-19,500 55.5 - 51.3
Limestones 21,000-23,000 47.6 - 43.5
Dolomites 23,000-26,000 43.5 - 38.5
