1. Chronostratigraphic Correlation
Well 5
Well 4
Well 3
Well 2
Well 1 A A A A B B B B C C C C D D D D E E E E F F F F G G H
SLIDE 23
Exercise ANSWER – part 2 – the chronostratigraphic correlation
The logs were positioned such that the A marker surface is close to horizontal (our datum)
Note how intervals from the A marker to the F marker are approximately constant thicknesses
The lower part of well 5 and 4 thins dramatically We had a time of regional erosion and possibly tilting
Vail et al., 1977b
AAPG©1977 reprinted with permission of the AAPG whose permission is required for further use.
Courtesy of ExxonMobil
L 4 - Well Log Data