Five different drilling mud systems namely potassium chloride (KCl) as a basic mud, KCl/partial hydrolytic polyacrylamide (PHPA), KCl/graphene nanoplatelet (GNP), KCl/nanosilica and KCl/multi-walled carbon nano tube (MWCNT) were prepared investigated for enhancement of rheological properties shale inhibition. Nanoparticles characterized in using transmission electron microscope (TEM) analysis. Mineralogical analysis was examined by X-ray diffraction (XRD). plugs compactor cell the...

Geological H2 storage plays a central role to enable the successful transition renewable economy and achieve net-zero emission in atmosphere. Depleted oil gas reservoirs are already explored with extensive reservoir operational data. However, residual hydrocarbons can mix injected reservoirs. Furthermore, low density high diffusivity of may establish leakage from via fault pathways. Interestingly, be consumed by microorganisms, which results pore-network precipitation, plugging, partial...

The energy industry is exploring sustainable chemistry and engineering solutions for exploitation of shale reservoirs. Smectite-rich challenging to drill with traditional water-based drilling fluid (WBDF). objectives this study are (i) investigate acute toxicity fluids (ii) enhance the rheological properties, lubricity, clay inhibition behavior WBDF by adding Tween 80 (T80)/ZnO nanoparticles. Acute results revealed 100% survival rate white leg shrimp in waste. At 0.7 g, optimum concentration...

Every year, millions of tons CO2 are stored in CO2-storage formations (deep saline aquifers) containing traces organic acids including hexanoic acid C6 (HA), lauric C12 (LuA), stearic C18 (SA), and lignoceric C24 (LiA). The presence these molecules deep aquifers is well documented the literature; however, their impact on structural trapping capacity thus containment security not yet understood. In this study, we therefore investigate as to how an increase concentration can alter mica water...

Increasing greenhouse gas emissions have put pressure on global economies to adopt strategies for climate-change mitigation. Large-scale geological hydrogen storage in salt caverns and porous rocks has the potential achieve sustainable energy storage, contributing development of a low-carbon economy. During is injected extracted through cemented cased wells. In this context, well integrity leakage risk must be assessed in-depth investigations hydrogen-cement-rock physical geochemical...

Atmospheric CO2 emissions trigger global warming and climate change challenges. Thus, geological storage appears to be the most viable choice mitigate in atmosphere. However, adsorption capacity of reservoir rock presence diverse conditions, including organic acids, temperature, pressure, can cause reduced certainty for injection problems. Wettability is critical measuring behavior various fluids conditions.We systematically evaluated CO2-wettability calcite substrates at conditions (323 K...

In this study, quartz substrates were incubated in sulfate-reducing bacteria (SRB) culture for 21 days at room temperature. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) used to quantify the bacterium effect, i.e., organic metabolite acids on wetting behavior of mineral surface. We examined wettability substrate before after microorganism effects under reservoir conditions, 0 27 MPa pressures 50 °C Nevertheless, there is no study reported date real...

The viability of hydrogen storage in bedded salt caverns hinges on understanding the geomechanical challenges posed by anisotropic stress states and complex geology such environments. This study presents a comprehensive analysis focusing proposed cavern within Carribuddy Formation Western Australia, characterized its interbedded layers. paper introduces new workflow, encompassing 1D 3D modeling techniques to provide detailed changes mechanical properties state formation allowing identify...

Biopolymers have been employed in enhanced oil recovery (EOR) due to their high viscosity and significant effects on waterflooding performance. Sodium alginate (NaAlg) is an excellent biopolymer that extracted primarily from brown algae. It has used the biotechnology industry as a thickening agent, colloidal stabilizer, application. In present study, series of sodium alginate/zirconium oxide nanoparticle suspensions were prepared via solution mixing, effect content, polymer concentration,...

Tight gas reservoirs are unconventional reservoir assets which have been the focus of major research in petroleum industry owing to global decline conventional reservoirs. They widely unlocked by creating hydraulic fractures formation increase flow capacity and productivity. The objective this paper is analyze different fracture geometries their effect on tight production. simulation model has built with single porosity approach. A vertical well a stage used predict behavior geometry....

Today our energy sectors are focusing on the marathon of CO2 cut and coherently require progress in transition schemes to meet UN climate change challenge achieve a zero-emission target. Among these schemes, radioactive disposal, CO2, NH3, H2 geological storage promising options for fixing anthropogenic waste, greenhouse gases storing green depleted oil/gas reservoirs, deep saline aquifers, salt caverns. Consequently, this could be achieved through rigorous research development (R&D)...

Natural fibres (NFs) have been successfully reinforced in polymer matrices to strengthen the properties of polymers. The polybenzoxazine thermosets are facing instable mechanical due high brittleness, herein, waste hemp (WHF) composites prepared. Effects WHF volume % loading on curing, thermomechanical, mechanical, and thermal studied. FTIR results confirmed that rich −OH groups increased ring-opening oxazines reduced curing temperature. In addition, an increase 223%, 111%, 64%, 253% impact,...

Abstract Hydrogen (H 2 ) fuel is assessed to be a major component of sustainable energy systems in the net‐zero world. However, hydrogen storage challenging and requires safe environmentally friendly solutions like H geo‐sequestration. This study evaluates effects sulphate‐reducing bacteria (SRB) on geological potential basalt rock. Fourier‐transform infrared spectroscopy (FTIR) findings show presence significant components, that is, O‐Si‐O organic functional groups, aromatics, amine salts,...

The climate change is significantly evolving novel microbes in the environment. In addition, nanoscience advancing promptly to provide environmentally friendly engineering solutions detect these (i.e., pathogenic bacteria and viruses) blood water. There a need develop smart efficient nano-biosensor pathogens, Escherichia coli (ATCC 47076) drinking water protect public against diseases like hemolytic uremic, gastroenteritis, acute diarrheas. immunomagnetic separation strategy enables...

Titania or TiO2-bentonite nanocomposite was synthesised by environmental friendly and cost effective hydrothermal method. Synthesised successfully characterised Scanning Electron Microscope (SEM) X-ray Diffraction (XRD). The target of the study to enhance rheological behaviour water-based drilling fluid (WBDF) using nanocomposite. experimental results revealed that Titania-bentonite exhibited better characteristics than conventional WBDF. Rheological properties in particular yield point (YP)...