Auflistung nach Schlagwort "Permeability"
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Compaction control on diagenesis and reservoir quality development in red bed sandstones: a case study of Permian Rotliegend sandstones
(International Journal of Earth Sciences, 2021-04-22)Authigenic minerals formed during diagenesis in conjunction with compaction by burial have long been known to lead to porosity-loss of sandstones, and a subsequent deterioration in reservoir quality. The diagenetic impact ... -
Effect of Compaction Banding on the Hydraulic Properties of Porous Rock - Part II: Constitutive Description and Numerical Simulations
(Rock Mechanics and Rock Engineering, 2021-03-23)In this paper the performance of a constitutive model for the description of the hydro mechanical behaviour of soft rock is evaluated with respect to the experimentally observed behaviour of Maastricht Calcarenite under ... -
Local radon flux maxima in the quaternary sediments of Schleswig–Holstein (Germany)
(International Journal of Earth Sciences, 2021-04-23)This paper presents radon flux profiles from four regions in Schleswig–Holstein (Northern Germany). Three of these regions are located over deep-rooted tectonic faults or salt diapirs and one is in an area without any ... -
Mafic explosive volcanism at Llaima Volcano: 3D x-ray microtomography reconstruction of pyroclasts to constrain shallow conduit processes
(Bulletin of Volcanology, 2021-12-06)Mafic volcanic activity is dominated by effusive to mildly explosive eruptions. Plinian and ignimbrite-forming mafic eruptions, while rare, are also possible; however, the conditions that promote such explosivity are still ... -
Permeability estimation from induced polarization: an evaluation of geophysical length scales using an effective hydraulic radius concept
(Near Surface Geophysics, 2019)Geophysical length scales defined from induced-polarization measurements can be used in models of permeability (k) prediction. We explore the relative merit of different induced-polarization parameters as proxies of an ... -
The Role of Rock Matrix Permeability in Controlling Hydraulic Fracturing in Sandstones
(Rock Mechanics and Rock Engineering, 2021-07-30)A concomitant effect of a hydraulic fracturing experimenting is frequently fluid permeation into the rock matrix, with the injected fluid permeating through the porous rock matrix (leak-off) rather than contributing to the ...