A Trihybrid Approach for Enhancing Crude Oil Recovery Using Effervescent-Tablet-Based Nanofluids.

While nanofluids can contribute enormously to enhanced oil recovery (EOR) in the upstream sector, conventional nanofluids are produced using complex equipment and expertise, which is somewhat limiting. To address this issue, herein, the use of effervescent-tablet-based nanofluids for EOR is reported. Tablets are formed by mixing and consolidating multi-walled carbon nanotubes, surfactants, and effervescent agents.