aslamo alikm my dear brother:
the most useful way to learn a program perfectly is to read its Help File.
help file can be reached by using Help Menu or by directing to the directpry folder of that program.

i checkef the Help File of Schlumberger Petren 2004 and its so great.it involves more than 1200 pages and began from Zero to Hero .

with my best wishes.....
aslamo alikm