Sucrosic dolomite, an important hydrocarbon reservoir, has long been the focus of carbonate sedimentological and reservoir geological studies. This study investigated a kind heterogeneous sucrosic dolomite in Lower Permian Qixia Formation NW Sichuan Basin, which recently location giant natural gas discoveries. The is characterized by coexistence porous euhedral tight anhedral it mainly distribu...

Northern Koh Sulaiman foldbelt, Shirani, North and South Waziristan (South Punjab, Balochistan Khyber Pakhtunkhwa) comprised mostly PermoTriassic to Recent sediments with subordinate igneous metamorphic rocks. These sedimentary strata folded faulted by geodynamic tectonic forces occurred during Late Cretaceous revealed through anticlinal synclinal foldings active faultings. The areas host many ...

Abstract Knowledge of initial fluids saturation has great importance in hydrocarbon reservoir analysis and modelling. Distribution water (Swi) 3D models dictates the original oil place (STOIIP), which consequently influences reserve estimation dynamic Calculation heterogeneous carbonate reservoirs always is a challenging task, because these have complex depositional diagenetic history with pore...

Compositional data on a range of sulphide and sulphosalt minerals from the hydrothermal vein deposit of Herja in the Baia Mare metallogenic area are presented. The presence of zinkenite, chalcostibite, diaphorite, fülöppite, boulangerite, bournonite, electrum and manganite are confirmed in the Herja ores for the first time. In addition, compositions close to veenite, twinnite and heteromorphite...

Introduction: The secondary minerals of Martian meteorites have long fascinated the scientific community due to their possible formation on Mars, which in turn can provide insight into weathering processes on Mars. Minerals such as jarosite have a restricted set of formation conditions and can provide information as to the pH, Eh, latitude and temperature of fluids on Earth [1-4]. Ca-sulfate (g...

Introduction: Impacts on lunar soils produce melt and vapor in an approximate proportion of 7:1 [1]. The melt scavenges soil grains of diverse size, quenches and forms agglutinates, thereby converting surface correlated components of soil grains as volume correlated components; simultaneously, parts of the vapor may condense or escape. Cumulative small impacts increase the maturity of the soils...

Introduction: Most asteroids for which porosities have been inferred have porosities ranging from 20% to >50%, with a mean of ~30% porosity [1]. Porosity significantly affects the physical properties of rocks, including the strength, thermal conductivity, seismic velocity, and dielectric permeability. Some asteroids have high enough porosities to affect their internal structure, gravitational f...

Tests on several scales were analyzed and conducted in a dolomite aquifer of southeastern Wisconsin to examine the variation of hydraulic conductivity and longitudinal dispersivity with scale of measurement. Scale behavior of hydraulic conductivity was shown to be dependent on the hydrofacies. In vuggy fades dominated by porous flow hydraulic conductivity increased relative to scale linearly wi...

Impure reworked evaporitic sandstones, preserved on Meridiani Planum, Mars, are mixtures of roughly equal amounts of altered siliciclastic debris, of basaltic provenance (40F10% by mass), and chemical constituents, dominated by evaporitic minerals (jarosite, Mg-, Ca-sulfatesFchloridesFFe-, Na-sulfates), hematite and possibly secondary silica (60F10%). These chemical constituents and their relat...

qualitative analysis of petroleum reservoir rocks is still one of the most important topics of core laboratories and directly affects hydrocarbon-in-place, fluid flow, and prediction of field performance. magnetic resonance imaging (mri) as a non-invasive, millimeter resolution technique which only images fluids in porous media fits this purpose perfectly. magnetic resonance is a radio frequenc...