It May Not Be Shale


J. J. Kowalski & S. 0. Asekun
Amerada Hess Corporation

7th Formation Evaluation Symposium of the
Canadian Well Logging Society in Calgary, October 21, 22, 23 & 24, 1979



A study of geochemistry and mineralogical associa- tions led to the conclusions that the Natural Gamma Ray Spectral Analysis Log could be used in determining paleo environment and sedimentary source areas. In addition, a study of Natural Gamma Ray Spectral Analy- sis Log showed that a large number of zones were being misinterpreted through the use of Natural Gamma Rays.