COMPOSITIONS AND METHODS EMPLOYING MULTI-WALLED CARBON NANOTUBE-BASED NANOHYBRIDS AND APPLICATIONS THEREOF IN OIL RECOVERY

摘要

Nanohybrid preparation methods and compositions, and their usage as oil/water emulsion stabilizers for Chemical Enhanced Oil Recovery (C-EOR). These methods have two main steps: (a) MWCNTs modification; and (b) encapsulation and insertion techniques to insert inorganic nanoparticles into the modified MWCNTs structure. The so-prepared nanohybrids used for the preparation of nanofluids were found to decrease the oil surface tension and reservoir wettability modification from oil-wet to water-wet, which is useful for Chemical Enhanced Oil Recovery (C-EOR).

主权项

1. A method for the preparation of a binary hydrophilic-hydrophobic nanohybrid comprising:
modifying a plurality of multi-walled carbon nanotubes (MWCNTs), said plurality of MWCNTs being opened; preparing a plurality of inorganic nanoparticles; and admixing said plurality of MWCNTs and said plurality of inorganic nanoparticles, wherein a plurality of said inorganic nanoparticles become encapsulated within the modified MWCNTs.