Type II-S kerogen source rock plugs with high TOC contents (10 to 20 wt.%) were investigated in their initial immature state as well as in different thermal maturities induced by hydrous pyrolysis under both unstressed and stressed conditions in order to investigate hydrocarbon generation and primary migration. Applied methods comprise organic geochemical investigations to assess the state of kerogen conversion as well as visual techniques such as reflected light microscopy and BIB-SEM to investigate the distribution and evolution of kerogen, solid bitumen and pore space within these rocks. Our first results indicate that primary migration within such high TOC rocks occurs along an interconected porenetwork that evolves upon kerogen conversion rather than due to the buildup of overpressure and microfracturing.


Article metrics loading...

Loading full text...

Full text loading...



  1. Abu-Mahfouz, I. S., Cartwright, J., Idiz, E., Hooker, J. N., Robinson, S.
    (2020) Silica diagenesis promotes early primary hydrocarbon migration.Geology, 48, 483–487. doi: https://doi.org/10.1130/G47023.1
    [Google Scholar]
  2. Abu-Mahfouz, I. S., Cartwright, J. A., Idiz, E., Hooker, J. N., Robinson, S., & van den Boorn, S.
    (2019). Genesis and role of bitumen in fracture development during early catagenesis.Petroleum Geoscience, 25(4), 371–388.
    [Google Scholar]
  3. Littke, R., Baker, D. R., & Leythaeuser, D.
    (1988). Microscopic and sedimentologic evidence for the generation and migration of hydrocarbons in Toarcian source rocks of different maturities. In Organic Geochemistry In Petroleum Exploration (pp. 549–559). Pergamon.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error