... A structurally uniformed MOF family based on the SiF 6 analogue showed almost identical CO 2 adsorption sites where the energetics for CO 2 interactions were almost independent of CO 2 loading at temperatures between 298-328 K and 1 bar pressure. 38 It is important to note...

... Surfactant adsorption on rock has been extensively studied during the past decades ( Somasundaran et al, 1979 ; Paria et al, 2004 ; Nelson et al, 1984 ; Zhang and Somasundaran, 2006 ). The impact of several factors on surfactant retention have been highlighted, including: mineralogy ( Hirasaki...

... monitoring thermal transmissivity multiplier enhanced recovery temperature variation flow in porous media surfactant injector variation surface temperature modeling & simulation upstream oil & gas adsorption chemical injection injection temperature water management production logging...

... Abstract Adsorption isotherms of methane and carbon dioxide adsorption isotherms on shale samples are measured and the simplified local density (SLD) model is used to match the experimental data. The SLD equation also has the generic modeling capabilities to draw the deviation from bulk...

... not give the micro wettability of core samples. We investigated wettability changes by the adsorption and desorption of oil on core particles after ageing process by making measurements of composition analysis of crude oil and core samples, and zeta potential at various conditions before and after ageing...

... of Methanol loading and the associated formation damage . Journal of Natural Gas Science and Engineering , 40 , 347 – 355 . Guo , J. , Li , Y. , and Wang , S. ( 2018 ). Adsorption damage and control measures of slick-water fracturing fluid in shale reservoirs . Petroleum Exploration...

... adsorption Upstream Oil & Gas porosity fluid composition sld-pr model equation shale gas Thickness adsorbed gas pore size distribution interaction fugacity adsorbed phase adsorption film thickness free gas Standard Deviation complex reservoir pore density profile chemical...

... evaluations in the laboratory such as surfactant-polymer compatibility, phase behavior, interfacial tension, Sor reduction and adsorption to ensure the chemical formulation readiness. The test was designed to utilize one existing producer with minimal workover for cost optimization. A detailed well screening...

... on reservoir performance and flow dynamics. These parameters include residual oil reduction by chemical, relative permeability curves, chemicals adsorption, chemical concentration, slug size, injection rate, and initiation time of chemical injection. Based on the result of tornado chart, residual oil reduction...

... by CO 2 was estimated. The experimental data was cross-matched with numerical simulation to estimate the relative permeability curves. The coreflood experiments showed that the effective water permeability in coal decreased during CO 2 injection due to its adsorption onto the coal surface...

... additional provisions may be included in the design for well clean-up. In any case, a multidisciplinary risk evaluation is always required to ensure the good progress of this type of operations. enhanced recovery fluid compatibility separation and treating chemical treatment adsorption oilfield...

... is the inability of conventional EOR polymers like HPAM and Xanthan to withstand these conditions. Candidate polymers must provide the required rheology at minimal polymer concentration, be thermally and mechanically stable, and result in a manageable adsorption on the reservoir formation. A polymer screening...

... enhanced recovery viscosity Hendraningrat molecule enhanced oil recovery adsorption magnetic field wettability alteration enhance oil recovery Upstream Oil & Gas recovery emulsion reduction reservoir application nanotechnology Oil Recovery nanoparticle interfacial tension...

... Reservoir Characterization knudsen layer complex reservoir Simulation shale gas adsorption Boltzmann equation shale formation boundary condition gas flow gas transport Knudsen number mean free path Upstream Oil & Gas adsorption effect adsorbed gas gas molecule distribution...

... Abstract Chemical EOR is a common process to increase recovery in oil reservoirs but these techniques are limited today in the case of high temperature and hard brines, mainly due to high adsorption issues and thermal stability of the chemicals. Specific formulations of surfactant...

... and approach to demonstrate CEOR process for Angsi, with lab experiments and pilot project conducted to gather necessary information on key parameters (Sor reduction, Adsorption and operation complexity) to identify and narrow down uncertainties will be discussed in this paper. Furthermore, comparison...

..., the use of a low-salinity make-up brine can give other benefits, such as better polymer stability (especially at high temperatures), lower sensitivity to polymer shear degradation, lower polymer adsorption and lower scaling and souring tendency. The paper will present Experimental procedures...

... adsorption capacity was measured use the isotherm adsorption system from TerraTek. The N 2 gas adsorption at low temperature and pressure (BET theory) (Bustin et al., 2008) showed that, with increasing pyrolysis temperature, the surface areas increase from 354 m 2 /kg (sample FS-300) to 3,102 m 2 /kg...

... into the matrix. The injected brine is not in chemical equilibrium with the in-situ rock, water and oil so that chemical reactions occur. Experiments have shown that for chalk rocks the relevant processes are adsorption/desorption of ions on the mineral surface, precipitation/dissolution of minerals or ion...

... formulation water quality-determination wastewater pollutant adsorption particle evaluation Indicator breaker drilling fluid management & disposal Upstream Oil & Gas sludge waste oil-based drilling fluid waste oil-based drilling oil-based drilling fluid hd4-46 well agent Abstract...