Study of surface-active Janus nanoparticles in Enhanced Oil Recovery method
Date3rd Jun 2022
Time03:00 PM
Venue https://meet.google.com/wru-fqqw-hcm
PAST EVENT
Details
The chemical enhanced oil recovery method (cEOR) is one of the most widely used tertiary recovery mechanisms. It is further classified into surfactant, polymer, alkaline, and alkaline surfactant-polymer (ASP) flooding based on the components of the injection fluid. Surfactant flooding (SF) reduces the interfacial tension (IFT) of oil-water as a result of which the oil easily disperses into the continuous water phase. But often these surfactants degrade under high shear or temperature and become immobile in pores of nano dimensions. In recent years, nanotechnology has proven to effectively enhance oil recovery through SP flooding. Due to the high surface area to volume ratio, it promotes more active sites and hence is highly effective. Surface active Janus nanoparticles (SA-JNPs) have recently caught the attention of many research areas in biomedical, food, and mining. It has also been established that SA-JNPs exhibiting dual wettability, thereby yield a more stable Pickering emulsion than a homogeneous nanoparticle. Its amphiphilicity allows it to behave as a classical surfactant with more stability. Hence, it is envisaged that SA-JNPs have the best of both, i.e., the size in nano dimension providing more activity, and its dual wettability nature enabling it to behave like a surfactant. The synthesis of SA-JNPs of SiO2-NiO NP were synthesized by using Pickering emulsion technique. Further XRD analysis conforms the formation of SiO2-NiO nanocomposite. Further, the effectiveness of SA-JNPs in forming an in-situ oil in water emulsion shall be observed microimaging, IFT and rheological measurements. Microfluidic studies shall be conducted to study the oil displacement process by the Janus nano-fluid. The observation will then be extended for different geometrical considerations through computational fluid dynamics (CFD). This proposal hereby aims to study the effect of SA-JNPs in a suitable polymer carrier fluid to enhance oil recovery achieving ultra-low interfacial tension (IFT).
Speakers
Mr. Satyajit Chowdhury, OE19D013
Department of Ocean Engineering