... of mineral scale deposition. Squeeze treatment is a common technique, where a scale inhibitor is injected to prevent the formation of scale. The squeeze lifetime is dictated by the adsorption/desorption properties of the inhibitor chemical, along with the water rate at the production well. The impact...

... history matching concentration nonconservative ion workflow structural geology adsorption boron concentration seawater breakthrough percentage machine learning ensemble result ensemble estimation enhanced recovery reservoir simulation upstream oil & gas accuracy observation data...

... In addition to targeting emulsifier quantity to account for adsorption at different interfaces, it is also important to understand substantial emulsifier degradation since that will also change the active emulsifier concentration in the system. Typically for drilling fluids, emulsifier...

... with. QCM principles QCM is a technique that has been widely used to study solid-liquid interfaces. QCM allows for in situ investigation of the deposition of molecules and ions, as well as the adsorption of nanoparticles and biomolecules on (in) organic coatings with nanogram accuracy. The working...

.... This is controlled by the adsorption, and later release, of the inhibitor onto the reservoir rock and the MIC of the inhibitor selected for the produced brine. This paper builds on earlier published work investigating potential changes to inhibitor adsorption caused by polymer EOR produced and moves...

... of a more favourable economic scenario, it is necessary to decrease surfactant losses into porous media due to adsorption. This paper presents a study of the static adsorption of an anionic sodium olefin sulfonate surfactant on a dolomitic limestone rock in the presence of two chemicals...

... adsorption on rock/clay/sediment solid surfaces, which may result in concentration loss, thus impair the effectiveness of the chemical solution and turn the process into an economically unfeasible case. Surfactant adsorption can be affected by the adsorbents, surfactant structure, experimental temperature...

..., the novelty of this biocide combination is its ability to provide strong, broad-spectrum antimicrobial performance and long-term effectiveness, as compared to traditional biocide chemistries. Upstream Oil & Gas concentration evaluation surfactant waterflooding adsorption operation cfu mL...

... water management wax remediation scale remediation wax inhibition asphaltene remediation oilfield chemistry scale inhibition Production Chemistry Upstream Oil & Gas paraffin remediation Hydrate Remediation hydrate inhibition asphaltene inhibition adsorption apparent adsorption...

... Abstract Severe formation damage is induced by the invasion of working fluid and the subsequent water blocking. Surface modification by surfactant adsorption can change the wettability of the rock surface to enhance the removal efficiency of reservoir fluid and reduce the water blockage damage...

...Methods Adsorption of surfactant to the various porous media was measured versus time. The motivation behind this study was to identify parameters that affect the adsorption of surfactants onto different rock surfaces, based on the surfactant molecular structures explored. Therefore...

... rate in high suspended solid loaded systems. paraffin remediation wax remediation scale remediation Hydrate Remediation hydrate inhibition Production Chemistry asphaltene inhibition Upstream Oil & Gas adsorption Sorbie water chemistry inhibitor application sulphate wax...

... to define the parameters controlling the physical and chemical functionality of surfactant and polymer (e.g. oil-water interfacial tension, IFT, polymer viscosity and surfactant and polymer adsorption). Assessment is made of the minimum inhibitor concentration (MIC) required to control scale...

... a high ability of MEP to copolymerize with ATBS and NNDMA. Abstract Fluid loss additives (FLAs) based on 2-acrylamido-2-tert.-butyl sulfonic acid (ATBS) provide fluid loss control by reducing filtercake permeability through polymer adsorption. However, when highly anionic dispersants or retarders...

... recovery (IOR) operations. The efficacy of the polymeric RPM is attributed to a bimodal mechanism of action, which involves the association of the hydrophobic appendages in addition to adsorption of the amphoteric material to the formation surface. As a result, one challenge associated with the use...

... of this work is to identify a chemical solution that can maximize oil and gas recovery in unconventional reservoirs by reduction of hydrocarbon adhesion to shale rocks. In order to evaluate an optimal solution, numerous formulations were developed and tested for their impact on adsorption and adhesion on rock...

... Abstract Asphaltene is the highest molecular weight fraction of crude oil that under some conditions can undergo deposition and adsorption and affect the properties of porous media. This work presents a mathematical model for fractionation of asphaltene content of crude oil into different parts...

... Abstract Surfactant is a critical component in fracturing fluid to help achieve higher productivity from unconventional oil and gas formations. However, adsorption of surfactant onto reservoir rocks and proppant could lead to inefficient use. The large surface area of shale formations (up...

... and it was demonstrated that adsorption onto the cement surface is crucial to achieve the required product performance. It was also shown that other solutes and admixtures present in the cement interstitial solution can hinder adsorption resulting in performance losses. Thus it has been recommended to incorporate...

... Plasma Spectroscopy (ICP) and Ion Chromatography (IC) instruments. The calcium and magnesium ions adsorbed on the column were eluted by allowing 1mol/L hydrochloric acid to pass through the column. Recycling of adsorption and elution was found to be satisfactory. Dynamic adsorption operations showed...