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Carbonate Reservoir basin - Wiley Online Library

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Last Updated: 08 May 2022

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Facies Analysis, Sequence Stratigraphy and Diagenetic Studies of the Jurassic Carbonates of Kohat Basin, Northwest Pakistan: Reservoir Implications

To clarify reservoir quality, the present study explores the depositional facies, diagenetic processes, and sequence stratigraphy of the shallow marine carbonates of the Samanasuk Formation, Kohat Basin. The Samanasuk Formation is composed of thin to thick-bedded, oolitic, bioclastic, dolomitic, and fractured limestone. Seven Transgressive Systems Tracts and six Regressive Systems Tracts have been found in a microfacies based on sea level rise. The evolution of porosity in various depositional and diagenetic phases has been shown by petrographic studies. During deposition, primarily developed in peritidal carbonates, but burial dissolution and diagenetic dolomitization have significantly improved the reservoir stability of the rock unit, which has been further demonstrated by the plug porosity and permeability studies. Except for the dolomite in mudstone, which was deposit during RSTs, the porosity and permeabilities were higher in shoal facies deposited in TSTs as compared to lagoonal and peritidal facies, except for the dolomite in mudstone, which was deposited during RSTs.

Source link: https://onlinelibrary.wiley.com/doi/10.1111/1755-6724.14938


3D thermo‐hydro‐mechanical simulation of the behaviour of a naturally fractured petrothermal reservoir in deep Upper Jurassic carbonates of the Bavarian Molasse Basin – Case study Geretsried

In an improved naturally fractured reservoir, an effective method is developed to numerically simulate the coupled reservoir processes of fluid flow, heat transfer, and thermoporoelastic stress resulting from potential geothermal doublet operating schemes with cold fluid injection and production profiles. The thermoelastic response of a geothermal doublet operating with 60 °C fluid injection temperature and 20 l/s flow rate converts into a maximum induced thermal stress near the injection point.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/geot.202100083

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions