Berthierine formation reduces the permeability of the glauconitic reservoir sandstones in the Siri oilfield (Danish North Sea), and is therefore a considerable production factor. A new hydrogeochemical batch model that is based on thermodynamics of chemical equilibrium was developed to identify ...detailed
Berthierine was proven as one of the most important products of glauconite alteration in the Siri oilfield (Danish North Sea). However, there is an ongoing debate regarding the main product of glauconite dissolution: siderite, berthierine, or berthierine as a precursor of siderite and/or magnesi...detailed
Berthierine as the only authigenic Fe-rich clay mineral occurs in an oil-bearing, glauconite-rich sandstone (Paleocene Heimdal Member of the Lista Formation, Danish North Sea). Based on the results of thin section, transmission and scanning electron microscopy, five different morphological types...detailed