Scientific Quarterly Journal of Geosciences

Scientific Quarterly Journal of Geosciences

Evaluate geochemical trace elements of Qalikuh oil shale (Southwest Aligoodarz) using elemental analysis and rock eval pyrolysis

Document Type : Original Research Paper

Authors
M Fereidoni 1
M Lotfi 2
N Rashid nejad 3
M Rashidi 4
1 M. Sc., Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran
2 Associate Professor, Department of Geology, Islamic Azad University North Tehran Branch, Tehran, Iran
3 Associate Professor, Department of Geology, Tarbiat Modares University, Tehran, Iran
4 M. Sc., Research National Iranian Oil Company, Tehran, Iran
10.22071/gsj.2016.41188
Abstract
The Qalikuh area,~35 km southwest of Aliqudarz, contains oil shale deposits in Garue and Sargelu formations(Jurassic-Cretaceous). Some 20 samples across two sections(Charun3-Deh ye Qali3) were selected and analyzed(Rock Eval – ICP – XRD – XRF) to study organic and mineral parameters(to determine type of organic material and kerogen, total organic carbon, thermal evolution, concentration, and classification of elements and minerals) and to model the relations between these parameters. The Qalikuh oil shale has a great potential for oil production with high levels of TOC (13.5 wt%), type 2 kerogen, low thermal maturity. However Qalikuh oil shale has metallic and nonmetallic element anomalies and high concentrations of strategic elements compared to Clark values. Dendritic diagrams suggest variable origins for elements and minerals in the samples. Some are associated with development of organic materials, TOC parameters, Resin and Asphaltene, and some are associated with clastic materials, aluminosilicates and source rock weathering.
Keywords
Oil shale
Total Organic Carbon
Rock Eval pyrolysis
Kerogen
Anomaly
Strategic elements
Scientific Quarterly Journal of Geosciences
Volume 25, Issue 98 - Serial Number 98
No. 98, Winter 2016
Winter 2016
Pages 171-180