The marly-shaly beds directly overlie oolitic and oncoidal limestones.
Tea Kolar-Jurkovšek, Bogdan Jurkovšek, Glenn S. Jaecks 2002, 'Macrofauna of the Carnian beds in the Mežica area', Geologijahttp://www.geologija-revija.si/dokument.aspx?id=639. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
All are strongly bituminous and shaly.
Jože Čar 2013, 'Ladinian skonca beds of the Idrija Ore Deposit (W Slovenia)', Geologijahttp://www.geologija-revija.si/dokument.aspx?id=1183. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The results of this study are promising and can be simply extended in other similar neighboring shaly sand reservoirs.
Masoumeh Bashiri, Mosayyeb Kamari, Ghassem Zargar 2017, 'An Improvement in Cation Exchange Capacity Estimation and Water Saturation Calculationin Shaly Layers for One of Iranian Oil Fields', Iranian Journal of Oil & Gas Science and Technologyhttp://ijogst.put.ac.ir/article_44376_80a9df1b75db377fc8cbed92de07bf9a.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
On the first example of a reservoir consisting of shale and sandstone, the delay time increases in shaly zones.
Coppens F., Mari J. L. 2006, 'Imagerie par réfraction en diagraphie acoustique Application of the Intercept TimeMethod to Full Waveform Acoustic Data', Oil & Gas Science and Technologyhttp://dx.doi.org/10.2516/ogst:1995015. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
A new mathematical model has been developed and validated to identify flow units in shaly sandstone reservoirs.
Shedid A. Shedid 2017, 'A new technique for identification of flow units of shaly sandstone reservoirs', Journal of Petroleum Exploration and Production Technologyhttp://link.springer.com/article/10.1007/s13202-017-0350-2. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Therefore, the application of the new technique provides improved reservoir description of shaly sandstone reservoirs, which secures better development planning.
Shedid A. Shedid 2017, 'A new technique for identification of flow units of shaly sandstone reservoirs', Journal of Petroleum Exploration and Production Technologyhttp://link.springer.com/article/10.1007/s13202-017-0350-2. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)