Geology of Petroleum, A.I. Levorsen
1957

The second edition of Geology of Petroleum is an expanded and updated version of Levorsen’s classic text, incorporating advances in petroleum geology and exploration techniques that emerged after the original 1954 publication.

The book provides a comprehensive treatment of the origin, migration, and accumulation of hydrocarbons, with greater emphasis on newer geological insights and exploration practices. Levorsen refines earlier discussions on the transformation of organic material into النفط and includes improved understanding of source rock evaluation and geochemical processes.

Core topics include:

Petroleum generation: updated theories on organic matter, maturation, and hydrocarbon formation
Migration mechanisms: more detailed analysis of primary and secondary migration pathways
Reservoir and seal characteristics: expanded treatment of porosity, permeability, and cap rock effectiveness
Trap types: structural and stratigraphic traps, with additional examples and clearer classification

The second edition also strengthens its coverage of exploration methods, reflecting technological progress:

Enhanced use of geophysical techniques, particularly seismic methods
Improved subsurface mapping and interpretation
Integration of geological and geophysical data in exploration decision-making

Levorsen includes more case studies and illustrations, helping connect theoretical principles with real-world petroleum discoveries.