Determination of Relative Kinetic Parameters of Middle to Upper Jurassic Petroleum Source Rock Formations of Different Maturity Levels by Means of Elemental Analysis

Rzger A. Abdula; Parween R. Abid

doi:10.52716/jprs.v16i2.1051

Authors

Rzger A. Abdula Petroleum and Mining Engineering Department, Tishk International University, Erbil, Iraq.
Parween R. Abid Department of General Science, College of Education, University of Duhok, Duhok, Iraq

DOI:

https://doi.org/10.52716/jprs.v16i2.1051

Keywords:

Kerogen, Source rock, Hydrous pyrolysis (HP), Open system pyrolysis, Closed system pyrolysis, Jurassic, Sulfur content, Petroleum generation

Abstract

The kinetic parameters of Middle to Upper Jurassic formations rich in organic matter in northern Iraq are examined, with a particular emphasis on sulfur-rich kerogen. The study simulates natural oil generation and ejection utilizing hydrous pyrolysis to evaluate the consequences of sulfur content on activation energy, frequency factors, and thermal maturity. A comparison between both pyrolysis methods (open vs. closed) reveals the effects of system parameters on the quality and content of the petroleum produced. The effects of sulfur levels as indicated by atomic Sorg/C ratios exceed 0.04 and should not rear exceed 0.4%. The findings show that these sulfur intensities are exist in the Type II-S kerogens in the Middle to Upper Jurassic formations; these levels are associated with lower maturation temperatures and early oil generation. The results offer substantial information for assessing the Jurassic petroleum system in carbonate facies that are high in sulfur.

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