Publikationsdatum:
2020-02-12
Beschreibung:
Key issues in shale gas systems are to predict gas in place (GIP) and to quantify those geological and petrophysical properties which strongly affect delivery of gas to the wellbore. Regarding GIP, there is no quantitative description of the extent to which gas is adsorbed to solid phase organic matter or present as a free gas phase, nor an understanding of how these parameters vary according to geological conditions of temperature, pressure and rock type. Concerning delivery of gas to the wellbore, the flow properties of shale are much less well constrained than those of conventional reservoirs. In the framework of the BMBF-funded GeoEn project, gas shale properties of Lower and Upper Carboniferous black shales in the NE German Basin, as effected by depositional environment and diagenetic overprint, are investigated. Special focus is laid on intraformational heterogeneities in sediment architecture as well as in organic and inorganic composition reaching from macroscale down to the nanometer pore-scale, and how they control shale gas type, quantity and storage mechanisms.
Materialart:
info:eu-repo/semantics/conferenceObject
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