Nanotechnology has various applications in oil and gas industry such as enhanced oil recovery (EOR). The main challenge in using nanoparticles in EOR processes is their stability in harsh conditions such as high temperature, high pressure, and intermediate to high salinity. However, most of the recent experimental works have been performed under unrealistic conditions such as the use of distill...

Surface-active ionic liquids (SAILs) have multiplied the possibilities of surfactant enhanced oil recovery (EOR) methods. Among their multiple promising features, possibility functionalization and stability at harsh conditions should be highlighted for application. They been successfully applied to increase by improving crucial parameters such as: formulation stability, reduction water–oil inte...

Many world class large carbonate reservoirs leave behind at least half of the initial oil in place. Typically water injection is used to improve oil recovery while gas injection is used to maintain pressure or to promote oil gravity drainage. Immiscible gas injection, including injection of CO2, has been considered but not implemented on a large scale for economic reasons. Furthermore, interest...

An investigation was conducted to study the reutilization of clear fracturing flowback fluids composed of viscoelastic surfactants (VES) with additives in surfactant flooding, making the process more efficient and cost-effective. The clear fracturing flowback fluids were used as surfactant flooding system with the addition of α-olefin sulfonate (AOS) for enhanced oil recovery (EOR). The interfa...

Large reductions in carbon dioxide (CO2) emissions are needed to mitigate the impacts of climate change. One method of achieving such reductions is CO2 capture and storage (CCS). CCS requires the capture of carbon dioxide (CO2) at a large industrial facility, such as a power plant, and its transport to a geological storage site where CO2 is sequestered. If implemented, CCS could allow fossil fu...

Emulsification is one of the important processes in chemical flooding to mobilize residual oil wells following secondary recovery. Oil displacement efficiency enhanced and volumetric sweep increased by engineering interactions supporting chemicals used with geological formations present wells. Polymers surfactants are often applied recovery (EOR) as emulsification displacement. However, polymer...

The displacement of more viscous fluids by less in porous media provides not only an industrial application for enhanced oil recovery (EOR) from reservoirs, but also a fundamental study the phase transition phenomena fluids, combining fluid mechanics and thermodynamics. Recent studies have shown that coupling thermodynamic hydrodynamic instabilities results formation self-driven active signific...

the biqian-10 block, located in henan oilfield of sinopic, contains many thin and interbedded reservoirs, which have been operated by cyclic steam stimulation for 20 years or more. therefore, it is a challenge to implement the conventional steam flooding. in order to improve the recovery of steam flooding, urea was used to assist steam flooding. urea can decompose into co2 and nh3, which are be...

Energy policies in the US and EU during last decades have been focused on enhanced oil gas recovery, including so-called tertiary extraction or recovery (EOR), one hand, development implementation of renewable energy vectors, other, biofuels as bioethanol (mainly Brazil) biodiesel EU) [...]