Page 201 - Basic Well Log Analysis for Geologist

LOG INTERPRETATION CASE STUDIES

80
45° API
7Or

Swirr %

vo
eoo
o 9a
©
20F
10 80
/,
10 /- /

1
1
1
l

sO
0
SO
20
7
wD
SW %
Figure 91.
Irreducible water saturation (Sy, ;,,) versus water saturation
(S,,) crossplot for determining percent water-cut,
Pennsylvanian upper Morrow Sandstone, Anadarko basin.
Note:
WC = water-cut
API = oil gravity

186