Geological Control of Petroleum Type

  • Bernard P. Tissot
  • Dietrich H. Welte


Regularities in crude oil and gas composition have been observed for a long time. Some of those seem to have a regional significance, e.g., geologists know that crude oils from the Middle East are generally rich in sulfur, while oils from North Africa have a low sulfur content. Other regularities seem to be more general: for instance, in several places of the world, it has been observed that oil density decreases with depth; more generally, geochemists and refiners have observed that crude oil density, sulfur content, and viscosity are closely related.


Source Rock Sulfur Content Gulf Coast Vienna Basin Marine Organic Matter 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • Bernard P. Tissot
    • 1
  • Dietrich H. Welte
    • 2
    • 3
  1. 1.Institut Francais du Pétrole and Ecole Nationale Supérieure du PétroleRueilFrance
  2. 2.Institut für Erdöl und Organische GeochemieKernforschungsanlage Jülich GmbHJülichGermany
  3. 3.Rheinisch-Westfälische Technische HochschuleAachenGermany

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