Measurement of Immiscible CO2 Flooding Processes and Permeability Reduction due to Asphaltene Precipitation by X-ray CT Imaging

A new investigation on modeling of permeability reduction during CO2 flooding processes in sandstone oil reservoirs

Permeability reduction in oil reservoirs during primary oil recovery and using the enhanced oil recovery methods are complicated problem which most of the oil field in worlds has encountered. In this work, a modified model based on four phase black oil model (oil, water, gas, and asphaltene) was developed to account permeability reduction during CO2 flooding in cylindrical coordinates around a ...

Simulation and Experimental Investigation of the Permeability Reduction due to Asphaltene Deposition in Porous Media

Experimental Investigation and Modeling of Asphaltene Precipitation Due to Gas Injection

Asphaltene instability is one of the major problems in gas injection projects throughout the world. Numerous models have been developed to predict asphaltene precipitation; The scaling equation is an attractive tool because of its simplicity and not involving complex properties of asphaltene. In this work, a new scaling model is presented to account  for asphaltene precipitation due to gas ...

Evaluation of multifunctional targeted gold nanoparticles on X-ray attenuation in nasopharyngeal cancer cells by X- ray imaging

Introduction: Head-and-neck cancer is the sixth most common cancer worldwide with the number of cases consistently increasing in developing countries. Successful development of effective, safe and cost effective nanoprobes for head-and-neck cancer targeting imaging is a big challenge. This study is aimed to develop cysteamine-folate conjugated gold nanoparticles (F-Cys-AuNPs) a...

Influence of CO2 Dissolution and Asphaltene Precipitation on Oil PVT and Recovery