Acidization is a widely used stimulation technique for carbonate reservoirs aimed at removing formation damage, and if successful, can result in the creation of wormholes specific lengths conductivities around wellbore. The depends on injection rate particular acid-mineral system be predicted through numerical simulations reactive phenomenon during acidization. In this paper, commonly two-scale...

The carbonate reservoir plays a pivotal role in conventional oil and gas reservoirs. However, due to limited knowledge of fluid flow characteristics fractured-vuggy formations (vuggy means small medium-sized cavity inside rock), high efficiency development remains challenging. In this study, the similarity principle is utilized design two-dimensional visual model based on geological data inject...

This study investigates reservoir quality for the Middle–Late Eocene Pila Spi Formation in Shaqlawa (Sarkand) and Gulley Keer (Shekhan) areas Kurdistan Region of Iraq. Lithologically, studied sections is composed limestone, dolomite, dolomitic chalky marl. The thickness formation about 102m 200m Sarkand Gully respectively. In order to evaluate characterization formation, different techniques su...

The Huoshaoyun zinc–lead deposit, a giant non-sulfide deposit in Xinjiang, is one of the most significant discoveries China and globally recent years. dominated by non-sulfides, with minor occurrences sulfides such as sphalerite, galena, pyrite. minerals include smithsonite, cerussite, anglesite, Fe-oxide. This study focuses on mineralogical characteristics sulfide ores, well trace element Mine...

Limestone aquifers constitute important drinking water resources but are vulnerable to groundwater contaminations. They also known be often heterogeneous. However, the hydraulic properties of their entire vadose zone and relationship these with mineralogical geochemical characteristics remain rarely studied. The soft (soil, powdery limestone, calcareous sand) hard (limestone rock) materials sam...

For nearly 200 years since their discovery in 1756, geologists considered the zeolite minerals to occur as fairly large crystals in the vugs and cavities of basalts and other traprock formations. Here, they were prized by mineral collectors, but their small abundance and polymineralic nature defied commercial exploitation. As the synthetic zeolite (molecular sieve) business began to take hold i...

Zoned, silica-deficient, calcic garnets containing up to 5 mol% F substitution for 0 formed during contact metamorphism of basalts by the Skaergaard intrusion in East Greenland. Fluorian calcic garnets occur as a retrograde alteration of prograde wollastonite and clinopyroxene that fills vesicles and vugs in lavas 30-70 m from the intrusion. Paragenetically equivalent phases include fluorite, w...

Carbonate reservoirs commonly have significant heterogeneity and complex pore systems due to the multi-scale characteristic. Therefore, it is quite challenging predict petrophysical properties of such based on restricted experimental data. In order study size representative elementary volume (REV) vuggy dolostones, a total 26 samples with sizes ranging from micrometers centimeters were collecte...

The acoustic properties of heterozoan and photozoan carbonates are compared interpreted in the light their distinct patterns diagenetic evolution. combined role depositional processes on petroacoustic signatures both has been assessed basis a multi-disciplinary multi-scale study Oligo-Miocene limestone outcrops from Cape Range peninsula (NW Australia). This integrates detailed analysis (using s...

In some of the challenging digital rock applications trade-off between model resolution and representative elemental volume is not captured in a single satisfying minimum requirements for both aspects. wide range lithofacies found carbonate reservoir rocks, facies fall this category, where large pores, ooids or vugs, are connected by small scale porous structures that could have orders magnitud...