Well, its good u want 2 improve urself. Ther r lots around, but its hw 2 get them is d probs, cos they r qute expensive and scarce. Ther's PETREL (reservoir characterization, seismic interpretation etc), ECLIPSE, MBAL, even HYSYS can be used by Geologists. HYSYS is available and cheap in d mkt sha.
The issue is wher do u stay?. If ur in Lagos or PH, ther r lots of training centers for them too..I can give u hints 4 PH. Cheers