GPC Research: Recent submissions
Now showing items 261-280 of 494
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Destabilization of stable bentonite colloidal suspension using choline chloride based deep eutectic solvent: Optimization study
( Elsevier Ltd , 2021 , Article)Choline chloride (ChCl) based natural deep eutectic solvents (NADES) were synthesized and tested as coagulant for stable bentonite colloidal suspensions. In this work, three ChCl based natural deep eutectic solvent NADES ... -
Effect of strain on gas adsorption in tight gas carbonates: A DFT study
( Elsevier B.V. , 2021 , Article)The geometrical properties of the reservoir rocks are usually affected by natural thermodynamics or environmental changes. These factors may modify the distribution and the amount of gas in place in the reservoir. To address ... -
Impact of clays on CO2 adsorption and enhanced gas recovery in sandstone reservoirs
( Elsevier Ltd , 2021 , Article)Carbon dioxide enhanced gas recovery (EGR) is a promising technique to sequester CO2 and boost natural gas recovery from conventional depleted and unconventional tight gas reservoirs. Clay minerals are usually present in ... -
CFD modeling of particle settling in drilling fluids: Impact of fluid rheology and particle characteristics
( Elsevier B.V. , 2021 , Article)The settling of drilling cuttings is important for the drilling and clean-out operations. The current article provides a Computational Fluid Dynamics (CFD) modeling study of particle settling behavior during the drilling ... -
CFD analysis of turbulent flow of power-law fluid in a partially blocked eccentric annulus
( MDPI AG , 2021 , Article)This study focuses on analyzing the turbulent flow of drilling fluid in inclined wells using the Computational Fluid Dynamics (CFD) technique. The analysis is performed considering an annulus with a fixed eccentricity of ... -
Assessing the relation between mud components and rheology for loss circulation prevention using polymeric gels: A machine learning approach
( MDPI AG , 2021 , Article)The traditional way to mitigate loss circulation in drilling operations is to use preventative and curative materials. However, it is difficult to quantify the amount of materials from every possible combination to produce ... -
Theoretical studies of methane adsorption on Silica-Kaolinite interface for shale reservoir application
( Elsevier B.V. , 2021 , Article)Shale gas is mostly made up of methane and is currently being exploited in fulfilling the world's energy demands. Density Functional Theory (DFT) and Molecular Dynamics (MD) techniques are employed for understanding methane ... -
Review of Iron Sulfide Scale Removal and Inhibition in Oil and Gas Wells: Current Status and Perspectives
( American Chemical Society , 2021 , Article Review)Iron sulfide scale is one of the main types of inorganic scales that block oil and gas wells. Iron sulfide has polymorph crystallinity structures, which complicate its dissolving and inhibition. Hydrochloric acid (HCl) is ... -
Development of a polyacrylamide-based mud formulation for loss circulation treatments
( American Society of Mechanical Engineers (ASME) , 2021 , Article)Loss circulation materials in the last two decades have witnessed a lot of developments and implementations. New technologies and materials are introduced to treat various types of loss zones. However, the success rate is ... -
Gelation kinetics of PAM/PEI based drilling mud for lost circulation applications
( Elsevier B.V. , 2021 , Article)The problem of lost circulation is a direct consequence of the presence of fractures or high permeability. Lost circulation material (LCM) is used to treat the loss that occurs or proactively strengthen the wellbore of the ... -
A robust fuzzy logic-based model for predicting the critical total drawdown in sand production in oil and gas wells
( Public Library of Science , 2021 , Article)Sand management is essential for enhancing the production in oil and gas reservoirs. The critical total drawdown (CTD) is used as a reliable indicator of the onset of sand production; hence, its accurate prediction is very ... -
Influence of choline chloride based natural deep eutectic solvent on the separation and rheological behavior of stable bentonite suspension
( Elsevier B.V. , 2021 , Article)Colloids in wastewater are considered a serious problem due to their stability and separation difficulty. Coagulation/ flocculation processes are the most common for the separation of colloids because of their high-performance ... -
The effect of vacancy defects on the adsorption of methane on calcite 104 surface
( Elsevier Editora Ltda , 2021 , Article)Density functional theory calculations are used to study the effect of vacancy defects (ionic Ca and charge neutral CO3) on the adsorption properties of CH4 molecule on different calcite surfaces. Both types of vacancy ... -
Computational Screening of Potential Inhibitors of Desulfobacter postgatei for Pyrite Scale Prevention in Oil and Gas Wells
( American Chemical Society , 2021 , Article)Sulfate-reducing bacteria (SRB), such as Desulfobacter postgatei are found in oil wells. However, they lead to the release of hydrogen sulfide. This in turn leads to the iron sulfide scale formation (pyrite). ATP sulfurylase ... -
Influence of natural gas composition on adsorption in calcite Nanopores: A DFT study
( Elsevier B.V. , 2021 , Article)Density functional theory is used to study the adsorption of natural gas components in calcite (10.4) cylindrical nanopores with 1–4 nm diameters. The change of adsorption energy with the diameter of the nanopores is studied ... -
Ab-Initio Molecular Dynamics investigation of gas adsorption on α-quartz (001) for CO2 enhanced natural gas recovery
( Elsevier B.V. , 2021 , Article)In this work, the interaction of methane and carbon dioxide on α-quartz with surface 001, with a siloxane termination (dense) surface was investigated by means of Ab-Initio Molecular Dynamics. Different temperatures were ... -
Calcite Scale Inhibition Using Environmental-Friendly Amino Acid Inhibitors: DFT Investigation
( American Chemical Society , 2021 , Article)Scale prevention is a long-term challenge. It is essential for ensuring the optimum utilization of oil and gas wells and minimizing economic losses due to disruptions in the hydrocarbon flow. Among the commonly precipitated ... -
Enhancing the flocculation of stable bentonite suspension using hybrid system of polyelectrolytes and NADES
( Elsevier B.V. , 2022 , Article)In this study, the influence of a hybrid coagulation/flocculation process on the electrokinetic of highly stable bentonite suspension has been examined. Choline chloride (ChCl) based natural deep eutectic solvent (NADES) ... -
Gelation kinetics of functionalized silica crosslinked polymeric gels used in conformance control applications
( John Wiley and Sons Inc , 2021 , Article)The potential crosslinking of three types of nitrogen-containing functionalized silica (TAAcONa, guanidine, and triamine) with polyacrylamide (PAM) has been investigated. Only triamine silica was able to crosslink with ... -
A CFD- RSM study of cuttings transport in non-Newtonian drilling fluids: Impact of operational parameters
( Elsevier B.V. , 2022 , Article)Cuttings removal out of the wellbore represents a real barrier for successful drilling operations. The performance of hole cleaning is determined by several factors. The current article provides a theoretical study of the ...