... surfactant injection equation enhanced recovery adsorption viscosity saturation cumulative production comparison conformance improvement reservoir enhanced oil recovery Upstream Oil & Gas Efficiency polymer flooding SMA society of petroleum engineers oil recovery Introduction...

... onshore and offshore water treatment applications. OMS not only remove challenging hydrocarbon contaminants from produced water, they do so with high efficiency over a long media life. Osorb uses a physical adsorption mechanism to remove hydrocarbons from water. Additionally, the unique structure...

... Abstract Guar based hydraulic fracturing fluids is the most commonly utilized fracturing fluids in oil field. Whereas, it tends to lead to formation damage as a result of adsorption of guar. The adsorption behavior of guar was investigated. The approach for reducing the adsorption was explored...

... to avoid correcting for properties difference between the testing fluid and reservoir fluid. This study focused on the latter approach to quantify the correction to gas adsorption. The Cui et. al, model based on Langmuir adsorption isotherm is modified to Cui-Freundlich isotherm which has been proven...

... are not fully understood. One objective of this work is to analyze the effects of surfactant properties (viscosity, concentration, and adsorption) on surfactant EOR at laboratory scale. The other objective is to obtain the functional relationships between surfactant properties and oil recovery of surfactant...

..., interfacial tension, adsorption, rheology, and core-scale performance. Almost all anionic and cationic surfactants were either incompatible or thermally unstable. None of the anionic surfactants (sulfate, alcohol propoxylate and ethoxylate, phosphate and sulfonate), provided by various companies were...

... chemical flooding methods adsorption thermal stability viscoelastic surfactant high temperature IFT Efficiency novel viscoelastic surfactant heavy reservoir oil enhanced recovery concentration viscosity application Upstream Oil & Gas displacement efficiency ve concentration...

... are recorded using spinning drop tensiometer and lie in the range of 10 −1 to 10 −2 m-Nm −1 . Effects of concentration, time and temperature on IFT are evaluated. It is also noted that ultralow IFT is obtained at 50°C and 80°C. Static adsorption has been evaluated by shaking the powdered core samples...

... reservoirs. The poor petrophysical properties of shale rocks in terms of porosity and permeability the adsorption capacity became a very significant factor that controls the amount of CO 2 these formations can store. Previous experimental studies showed that high TOC indicates high adsorption capacity. Here...

... chains as well as the ionic repulsion between the chains. Those same properties result in significant interactions between the transported polymer molecules and the porous medium, including adsorption, mechanical entrapment, and hydrodynamic retention. Those phenomena, in turn, can lead to polymer losses...

...Results and discussion Characterization of Shale The organic-rich Qusaiba Shale (QH) is the main target for unconventional shale gas exploration in Saudi Arabia. Different outcrop and subsurface samples from (QH) have been used in the adsorption study. The bulk mineralogy from XRD analysis...

... at 100°C and pressure up to 44 bar. The results showed that CO 2 adsorption is 3.7 times CH 4 adsorption. complex reservoir adsorption Artificial Intelligence Upstream Oil & Gas isotherm hydraulic fracturing methane co 2 injection re-fracturing treatment tight gas reservoir...

... Abstract Low pressure sorption analysis and CO 2 adsorption measurements were carried out on shale samples from the Utica and Permian basins. To determine the impact of rock mineralogy on the adsorbed volume of CO 2 , the mineral compositon of the studied samples varied. For example, the clay...

... and initiation time. The optimized model is then used as a reference and a coredflood is conducted on the optimized conditions i.e. slug size and initiation time. The recovery obtained from the experimental run is compared with the simulation results. Polymer viscosity, adsorption on the rock surface...

.... The gas is eventually being produced from the fracture through the production well. Abstract Gas transport in extremely low-permeability shale formations is a multi-mechanisms-coupling process that includes gas adsorption-desorption, Knudsen diffusion, and slip flow. Incorporating these mechanisms...

... procedures. Potential mechanisms for rock wettability alteration were proposed, including sulfate adsorption, mineral dissolution, ionic exchange, and improving fluid diffusion among different pore systems. Further research studies have pointed out that certain ions have a significant role in the proposed...

... in unconventional gas reservoirs. Specifically, the numerical model simulates realistic reservoir gas flow processes, including Klinkenberg effect, non-Darcy flow behavior, and adsorption under reservoir flow condition, in addition to wellbore storage and skin effect. We use the numerical model to generate various...

... pressure transient analysis drillstem testing hydraulic fracturing artificial intelligence upstream oil & gas model 1 dual-porosity model drillstem/well testing triple-porosity model triple-porosity system machine learning pressure transient testing adsorption analytical...

... of adsorption of polymers on the rock surface, the existing heterogeneities within the reservoir can be reduced. In this study, two types of polymers namely; polyacrylamide (PAA) and polysaccharides (xanthan) have been investigated. The viscosity of both polymer solutions was first evaluated based on different...