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A Rare Case of Epstein-Barr Virus Encephalitis in an Adult Female with Suboptimal Outcome Open

Kainat Sattar, Abdullah S. Sultan, Muhammad Umar, Laiba Shamim, Sheik Rehman , et al. · 2025

Pickering Emulsified Acid Systems (PEAS): A Promising Approach for Reduced Drag in Matrix Acidizing Open

Ala AL-Dogail, Rahul Gajbhiye, Abdullah S. Sultan, Theis I. Sølling, Abdelsalam Al‐Sarkhi , et al. · 2025

Matrix acidizing is a widely employed stimulation technique that enhances well productivity in carbonate reservoirs by dissolving formation damage and creating conductive channels known as wormholes. Conventional hydrochloric acid (HCl) sy…

Microfluidic study of hydrate propagation during CO2 injection into cold aquifers Open

Wei Yu, Muhammad Habiburrahman, Abdullah S. Sultan · 2025

Understanding the interplay between hydrate formation and CO2 injection is crucial for advancing submarine carbon sequestration, yet it remains underexplored. This study employs a high-pressure, low-temperature microfluidic system to inves…

Microfluidic Study of Hydrate Formation and Propagation in Porous Media During Co2 Injection into Cold Aquifers for Carbon Sequestration Open

Wei Yu, Muhammad Habiburrahman, Abdullah S. Sultan · 2025

Integrative analysis of toxicometabolomics and toxicoproteomics data: new molecular insights into thiazolidinedione-induced cardiotoxicity Open

Abdullah S. Sultan, Zahra Rattray, Nicholas J. W. Rattray · 2024

Cytotoxicity and toxicoproteomics analysis of thiazolidinedione exposure in human‐derived cardiomyocytes Open

Abdullah S. Sultan, Zahra Rattray, Nicholas J. W. Rattray · 2024

Thiazolidinediones (TZDs) (e.g. pioglitazone and rosiglitazone), known insulin sensitiser agents for type II diabetes mellitus, exhibit controversial effects on cardiac tissue. Despite consensus on their association with increased heart fa…

Visualizing Conformance Control Mechanisms in High-Temperature Reservoirs: A Microfluidic Analysis of Pickering Emulsified Gel Systems Open

Tinku Saikia, Lucas Mejía, Abdullah S. Sultan, Matthew T. Balhoff, Jafar Al Hamad · 2024

In the context of mature oil fields, the management of conformance control and water shut-off stands out as a formidable challenge. Our prior research endeavors (Saikia et al., 2021, 2020) have introduced an innovative Pickering emulsified…

Integrative Analysis of Toxicometabolomics and Toxicoproteomics Data: New Molecular Insights into Thiazolidinedione-Induced Cardiotoxicity Open

Abdullah S. Sultan, Zahra Rattray, Nicholas J. W. Rattray · 2024

Introduction Despite the well-established efficacy of thiazolidinediones (TZDs), including pioglitazone and rosiglitazone, in type II diabetes management, their potential contribution to heart failure risk remains a significant area of unc…

Toxicometabolomics-based cardiotoxicity evaluation of Thiazolidinedione exposure in human-derived cardiomyocytes Open

Abdullah S. Sultan, Zahra Rattray, Nicholas J. W. Rattray · 2024

Introduction Thiazolidinediones (TZDs), represented by pioglitazone and rosiglitazone, are a class of cost-effective oral antidiabetic agents posing a marginal hypoglycaemia risk. Nevertheless, observations of heart failure have hindered t…

Toxicometabolomics-Based Cardiotoxicity Evaluation of Thiazolidinedione Exposure in Human-Derived Cardiomyocytes. Open

Abdullah S. Sultan, Zahra Rattray, Nicholas J. W. Rattray · 2024

Introduction Thiazolidinediones (TZDs), represented by pioglitazone and rosiglitazone, are a class of cost-effective oral antidiabetic agents posing a marginal hypoglycaemia risk. Nevertheless, observations of heart failure have hindered t…

Density-Dependent Pore-Filling Behaviors and Lateral Propagation of Ch4 and Co2 Hydrates Forming in Microfluidic Porous Media Open

Muhammad Habiburrahman, Wei Yu, Kun Ge, Jiaqi Wang, Abdullah S. Sultan · 2024

Novel Environmentally Friendly Nanomaterials for Drag Reduction of the Emulsified Acid System Open

Ala AL-Dogail, Rahul Gajbhiye, Theis I. Sølling, Abdullah S. Sultan, Shirish Patil , et al. · 2023

Matrix acidizing is a technique that is widely used in the petroleum industry to remove scales and create channels in the rock. Removal of scales and creation of channels (wormhole) enhance productivity. Conventional acidizing fluids, such…

Cytotoxicity and Toxicoproteomic Analysis of Pioglitazone Exposure in Human-derived Cardiomyocytes Open

Abdullah S. Sultan, Zahra Rattray, Nicholas J. W. Rattray · 2023

Pioglitazone (PGZ) is a peroxisome proliferator-activated receptor gamma agonist widely used as an insulin sensitiser agent for type II diabetes mellitus. The heterogeneity of PGZ effects on cardiac tissue has remained controversial, as co…

Optimization of surfactant-polymer flooding for enhanced oil recovery Open

M. Elmuzafar Ahmed, Abdullah S. Sultan, Abdulkarim M. AlSofi, Hasan S. Al-Hashim · 2023

Chemical enhanced oil recovery applications continue to face a variety of obstacles, particularly in high saline and high-temperature reservoirs, in addition to high chemical prices. This issue creates difficulty in developing optimal reci…

Hydrogen Hydrate Promoters for Gas Storage—A Review Open

Tinku Saikia, Shirish Patil, Abdullah S. Sultan · 2023

Clathrate and semi-clathrate hydrates have recently been gaining major interest as hydrogen storage material. The benefits of hydrates, such as reversible formation and dissociation, their environmentally friendly nature, economical costs,…

Development of Emulsified Acid System (Eas) Using Organoclays (Oc): Rheology and Implication to the Acidizing Open

Ala AL-Dogail, Rahul Gajbhiye, Abdullah S. Sultan, Theis I. Sølling, Shirish Patil , et al. · 2023

Pickering Emulsions Stabilized by Chitosan/Natural Acacia Gum Biopolymers: Effects of pH and Salt Concentrations Open

Ahmad A. Adewunmi, Ahmad Mahboob, Muhammad Shahzad Kamal, Abdullah S. Sultan · 2022

In this study, chitosan (CT) and naturally occurring acacia gum (AG) blends were employed as emulsifiers to form a series of emulsions developed from diesel and water. Effects of pH level (3, 5, 10, and 12) and various NaCl salt concentrat…

Upscaling Linear to Radial Acidizing in Carbonate Rocks Using Pickering Emulsified Acid Open

Moustafa Aly, Abdullah S. Sultan, Gallyam Aidagulov, Devon Gwaba, Mustapha Abbad · 2022

Radial Matrix Acidizing Using Pickering Emulsified Acid Open

Moustafa Aly, Abdullah S. Sultan, Gallyam Aidagulov, Devon Gwaba, Mustapha Abbad , et al. · 2022

Enhancing the Oil Recovery from Naturally Fractured Reservoirs Using Viscoelastic Surfactant (VES) Flooding: A Field-Scale Simulation Open

M. Elmuzafar Ahmed, Amjed Hassan, Abdullah S. Sultan, Mohamed Mahmoud · 2021

A viscoelastic surfactant (VES) has the combined properties of a surfactant and a polymer. Injection of VES fluids into naturally fractured reservoirs (NFRs) can control the mobility of the injected fluid and enhance the total oil recovery…

Application of a Pickering Emulsified Polymeric Gel System as a Water Blocking Agent Open

Tinku Saikia, Abdullah S. Sultan, Syed Rizwanullah Hussaini, Assad Barri, Nur Iman Khamidy , et al. · 2021

The conventional methods for controlling excess water production in oil/gas wells can be classified on the basis of the mechanism (pore-blocking mechanism and relative permeability modification) used. Gel systems developed on the basis of …

Synthesis and Testing of Monoethylene Glycol Carbon Quantum Dots for Inhibition of Hydrates in CO<sub>2</sub>Sequestration Open

Tinku Saikia, Jaber Al Jaberi, Abdullah S. Sultan · 2021

The hydrate formation during the transportation and injection of carbon dioxide in pipelines always leads to the risk of plugging. The development of a cost-efficient CO₂ sequestration method requires efficient hydrate inhibitor…

Rapid Determination of Emulsion Stability Using Turbidity Measurement Incorporating Artificial Neural Network (ANN): Experimental Validation Using Video/Optical Microscopy and Kinetic Modeling Open

Olalekan S. Alade, Mohamed Mahmoud, Dhafer Al Shehri, Abdullah S. Sultan · 2021

Determination of emulsion stability has important applications in crude oil production, separation, and transportation. The turbidimetry method offers advantage of rapid determination of stability at a relatively low cost with good accurac…

An investigation of factors influencing carbonate rock wettability Open

Mohammad Alqam, Sidqi A. Abu-Khamsin, Abdullah S. Sultan, Saad Alafnan, Nadrah A. Alawani · 2021

The presence of asphaltenes and polar compounds in a crude oil plays a major role in dictating the type of wettability it displays with oil reservoir rocks. The main objective of this study was to investigate the effect of the asphaltenes …

Molecular Fractionation in the Organic Materials of Source Rocks Open

Saad Alafnan, Abdullah S. Sultan, Jaber Al Jaberi · 2020

Hydrocarbons that are transported in a hierarchal path from the nanoporous constituents of a shale matrix to natural and then hydraulic fractures are subject to continuous fractionation during the journey. The organic nanopores of a source…

Impacts of natural fractures on acid fracture design: A modeling study Open

Murtada Saleh Aljawad, Mateus Palharini Schwalbert, Mohamed Mahmoud, Abdullah S. Sultan · 2020

Sustainable Production from Shale Gas Resources through Heat-Assisted Depletion Open

Saad Alafnan, Murtada Saleh Aljawad, Guenther Glatz, Abdullah S. Sultan, René Windiks · 2020

Advancements in drilling and production technologies have made exploiting resources, which for long time were labeled unproducible such as shales, as economically feasible. In particular, lateral drilling coupled with hydraulic fracturing …

An Investigation of the Swelling Kinetics of Bentonite Systems Using Particle Size Analysis Open

Musaab Magzoub, Ibnelwaleed A. Hussein, Mustafa S. Nasser, Mohamed Mahmoud, Abdullah S. Sultan , et al. · 2019

Particles size distribution (PSD) is introduced as a tool for analysis of bentonite aggregation and swelling kinetics. Raw Ca-bentonite was purified using a combined wet sieving and sedimentation processes, followed by thermochemical treat…

Stability of PAM/PEI emulsified gels under HTHS conditions for water shut-off treatment Open

Abdullah S. Sultan · 2018

Understanding viscosity reduction of a long-tail sulfobetaine viscoelastic surfactant by organic compounds Open

Lionel Talley Fogang, Abdullah S. Sultan, Muhammad Shahzad Kamal · 2018

The change from high viscosity to low viscosity after addition of organic compounds depends on the type of organic compound.

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