ABSTRACT Chlorite is recognized as a key mineral for preserving reservoir quality in deeply buried sandstones, chlorite coatings inhibit the nucleation of quartz overgrowths. A limited understanding mechanisms and conditions under which these authigenic form prevents accurate forward modeling diagenesis limits models critical to wide range geoscience applications. We present experimental data t...

Low permeability tight gas resources account for 90% of the Xihu Sag. Under background extensive development low and reservoirs, key to economic effective is find sweet reservoir formation. To clarify origin distribution a in study area, it important formation evolution mechanisms chlorite. In this study, based on analysis thin section, X-ray diffraction SEM, through factors authigenic chlorite...

Low resistivity in argillaceous sandstone reservoirs may be attributed either to the effect of microporosity, or to specific effects due to clays and/or to conducting minerals. In the frame of a study on pore lining chlorite bearing sandstones, from different hydrocarbon reservoirs, measurements of cation exchange capacities and specific surface areas have been performed, on whole rocks as well...

Abstract Magnetite stability in ultramafic systems undergoing subduction plays a major role controlling redox states of the fluids liberated upon dehydration reactions, as well residual rocks. Despite their relevance for evaluation conditions, systematics and geochemistry oxide minerals have remained poorly constrained subducted Here, we present detailed petrological geochemical study magnetite...

Flotation is the most known beneficiation method for separation of complex and refractory iron ores. As a typical iron-containing silicates, it difficult to separate chlorite from specularite, because similar surface physicochemical properties. In this study, selective depression effect sodium hexametaphosphate (SHMP) was conducted via cationic micro-flotation. The adsorption mechanism between ...