A novel hybrid hyperbranched nanowire CNTs for enhancing oil recovery through increasing viscoelasticity and high-viscous emulsions to compensate reservoir heterogeneity

Preparation and Oil Displacement Performance Evaluation of Amphiphilic Janus Molybdenum Disulfide Nanosheets

“…Cao et al used amino polyethylene glycol hydroxyl (NH 2 –PEG–OH) and octadecylamine (ODA) to modify GO; the modified GO can form a stable interfacial film at the oil–water interface, and the recovery rate was 10% higher than that of unmodified GO. Gou et al developed a new type of hyperbranched nanowires (O-20@PAM@CNTs) using hydroxylated carbon nanotubes and explored their oil displacement properties at different concentrations, and found that when the content of hyperbranched nanowires was 0.2% w/w, the oil displacement performance was the best, up to 17.5%, which was 6% higher than that of O-20@PAM without carbon nanotubes. Han et al modified the surface of silica nanoparticles by zwitterionic surfactants and PSS- co -MA and explored the effect of nanoparticle concentration on oil recovery.…”

Formulation of Spontaneous In Situ Emulsification Using Sodium Lauryl Sulfate Grafted Nanopyroxene for Enhanced Heavy Oil Recovery in Sandstone Reservoirs

“…After physically mixing the JGO with surfactants like dodecyltrimethylammonium bromide (DTAB), sodium dodecyl sulfate (SDS), and Triton X-100 (TX-100), it was concluded that the JGO/DTAB system exhibited better synergistic effects to dramatically decrease the heavy oil/water IFT to 8 × 10 –3 mN/m, which could improve heavy oil recovery by (19.5%) during the core flooding tests . On the other hand, Gou et al (2022) confirmed that injection of 2000 mg/L from hyperbranched nanowire of carbon nanotubes grafted with PAM could enhance oil recovery by improving the polymer thickening ability, temperature resistance, antishear, and viscoelasticity . Although the use of GO and CNT from these previous studies has shown promising results in EOR, their fabrication and application have some downsides.…”

“…The authors have proven that JGO, compared with the original GO, had greater interfacial activity by reducing the heavy oil/water IFT to 0.12 mN/m. 40 Although the use of GO and CNT from these previous studies has shown promising results in EOR, their fabrication and application have some downsides. In terms of their synthesis, these classes of nanomaterials typically involve using surface modification protocols that are complex under high temperatures and in the presence of harmful solvents.…”