Chapter 2 - Introduction to Petroleum Geology

Abstract

Chapter 2 follows logically from Chapter 1 by providing a review of the more important aspects of geology with respect to petrophysics. A concise description of the origins of the principle types of sedimentary rocks associated with petroleum that supply the reserves for petroleum is provided. This is followed by theories on the origins of petroleum hydrocarbons and their migrations (sometimes over unusually long distances) to geologic traps where they establish the reservoirs of petroleum. The chapter ends with a discussion of the nature of the subsurface environments where petroleum is found and the properties and chemistry of petroleum and its products.