Browsing Gas Processing Center by Title
Now showing items 411-430 of 494
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Rheological and thermal properties of novel surfactant-polymer systems for EOR applications
( Wiley-Liss Inc. , 2016 , Article)In this work, two surfactant-polymer (SP) systems were evaluated for enhanced oil recovery applications. The first SP system contained partially hydrolyzed polyacrylamide and alkyl polyethylene glycol ether-based non-ionic ... -
Rheological characterization of NA2CO3 activated calcium bentonite for oil and gas drilling applications
( AIChE , 2015 , Conference Paper)Calcium bentonite was activated with soda ash (Na2CO3) at various ratios and due to the ion exchange; the original Ca-bentonite was converted to Na-bentonite. It was found that the Na2CO3 activation improves the swelling ... -
Rheology of a viscoelastic zwitterionic surfactant used in acid stimulation: Effects of surfactant and electrolyte concentration
( Elsevier , 2014 , Article)Acid diversion systems play an important role in increasing the efficiency of the acid stimulation process. Viscoelastic surfactant (VES) based diverting systems have many advantages that make them preferred for well acid ... -
Rheology of organoclay assisted extrusion of HDPE using Particle Image Velocimetry
( Institution of Chemical Engineers , 2015 , Article)Wall slip is often seen as a source of flow enhancement and can play a significant role during certain melt instabilities in polymer processing. In the present investigation, the effect of organoclay on the wall slip of ... -
Rheology of Triamine Functionalized Silica Reinforced Polymeric Gels Developed for Conformance Control Applications
( American Chemical Society , 2020 , Article)Recently, cross-linked polymers such as polyacrylamide (PAM)/polyethylenimine (PEI) have been used in conformance control applications to replace conventional lost circulation materials (LCMs). The objective of this work ... -
Rheology of upstream complex fluids
( Elsevier , 2023 , Book chapter)Rheology is an important characterizing technique as it affects all types of fluids. While oil and gas recovery is an operation that depends mainly on the interaction between different fluids, it is therefore important to ... -
Role of organic cation in modern lead-based perovskites
( Elsevier Ltd , 2019 , Article)Hybrid organic-inorganic metal perovskites (ABX3, A- organic cation, B-metal ion, X-halide ion) have shown significant potential as thin-film solar cells or Dye solar cells (DSC) materials. Using a time-dependent density ... -
Screening of surfactants and polymers for high temperature high salinity carbonate reservoirs
( Society of Petroleum Engineers , 2018 , Conference Paper)Carbonate reservoirs typically exhibit significant heterogeneity, high temperature and high salinit ies. Surfactant and polymer selection for such reservoirs is a challenging process where extensive laboratory investigations ... -
Self-assembly of a surfactin nanolayer at solid-liquid and air-liquid interfaces
( Springer Verlag , 2016 , Article)Surfactin, a sustainable and environmentally friendly surface active agent, is used as a model to study the adsorption of biosurfactants at hydrophobic and hydrophilic solid–liquid interfaces as well as the air–liquid ... -
Self-standing foam-like Pd-based alloys nanostructures for efficient electrocatalytic ethanol oxidation
( Elsevier , 2023 , Article)In this work, self-standing binary porous PdM (M = Ni, Fe and Co) foam-like nanostructures are rationally designed by a rapid and one-step aqueous-solution method, including ice co-reduction of metal precursors using sodium ... -
Self-Standing Pd-Based Nanostructures for Electrocatalytic CO Oxidation: Do Nanocatalyst Shape and Electrolyte pH Matter?
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Tailoring the shape of Pd nanocrystals is one of the main ways to enhance catalytic activity; however, the effect of shapes and electrolyte pH on carbon monoxide oxidation (COOxid) is not highlighted enough. This article ... -
Settling behavior of fine cuttings in fiber-containing polyanionic fluids for drilling and hole cleaning application
( Elsevier B.V. , 2021 , Article)For efficient drilling operations, cuttings transport within the oil and gas wellbore is fundamental. Inadequate hole cleaning results in many problems including reduced rate of penetration, increased torque, bit wearing, ... -
Simulation study of Schottky contact based single Si wire solar cell
( IEEE , 2014 , Conference Paper)We model single silicon nanowire (SiNW) solar cells with dissimilar work function metal contacts. Both short circuit current (ISC) and open circuit voltage (VOC) have been investigated. Effects of nanowire dimension, ... -
Simultaneous removal of Congo red and cadmium (II) from aqueous solutions using graphene oxide–silica composite as a multifunctional adsorbent
( Chinese Academy of Sciences , 2020 , Article)Graphene oxide is a very high capacity adsorbent due to its functional groups and π−π interactions with other compounds. Adsorption capacity of graphene oxide, however, can be further enhanced by having synergistic effects ... -
Simultaneous treatment of reject brine and capture of carbon dioxide: A comprehensive review
( Elsevier B.V. , 2020 , Article Review)The ongoing expansion of industries results in the increased emission of various pollutants into the environment, contributing to the rapid deterioration of air, water, and soil quality. Notable pollutants addressed in ... -
Size-And Wavelength-Dependent Two-Photon Absorption Cross-Section of CsPbBr3 Perovskite Quantum Dots
( American Chemical Society , 2017 , Article)All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing ... -
Solar photocatalytic degradation of 2-chlorophenol with ZnO nanoparticles: optimisation with D-optimal design and study of intermediate mechanisms
( Springer Verlag , 2017 , Article)In this study, the photocatalytic degradation of toxic pollutant (2-chlorophenol) in the presence of ZnO nanoparticles (ZnO NPs) was investigated under solar radiation. The three main factors, namely pH of solution, solar ... -
Special issue (GPS, 2016): The Fifth International Gas Processing Symposium (Qatar)
( Elsevier , 2018 , Conference Paper)Special Issue: The 5th International Gas Processing Symposium, Qatar -
State of the Art in Separation Processes for Alternative Working Fluids in Clean and Efficient Power Generation
( MDPI , 2022 , Article Review)Gas turbines must now comply with much stricter emission control regulations. In fact, to combat the greenhouse effect, regulatory authorities have drastically reduced allowable emission levels. For example, in less than ... -
The status of industrial and municipal effluent treatment with membrane bioreactor technology
( Elsevier , 2016 , Article)The status of MBR technology has been scrutinised with reference to (a) available commercial technologies and their characteristics, (b) key design and performance parameters of existing full-scale installations, and (c) ...