The Tengiz Field in the North Caspian Sea contains a great deal of sour oil. Why?
Case Studies Petroleum Generation Case Studies:
Monterey Shale--Kerogen Type IIA Kinetics (p. 158) Phosphoria Formation of Montana -- Kerogen Type IIB Kinetics (p. 161) Salym Field, West Siberian Basin -- Kerogen Type IIC Kinetics (p. 164) Kimmeridge Shale source near the Ekofisk field--Kerogen Type IID Kinetics (p. 167) Green River Formation, Western U.S. -- Kerogen Type I Kinetics Miocene-age formations, South Padre Island--Kerogen Type III Kinetics
(additional case studies thanks to Baseline DGSI Analytical Laboratories)