Southwest Petroleum University

Bowen Chen

Rui Liu

Wanfen Pu

Daijun Du

Lin Sun

Fayang Jin

Huancai Fan

Binyang Zou

A tight oil reservoir COflooding multi-scale channeling control system and a preparation method, including nanoscale COresponsive worm-like micellar systems and micron-scale COresponsive dispersion gel, are provided. The nanoscale COresponsive worm-like micelle system is prepared by COreactive monomers and organic anti-ion monomers stirred in water. The micron-scale COresponsive dispersion gel is made of acrylamide, a responsive monomer, a silane coupling agent modified hydroxylated multi-walled carbon nanotubes as raw materials, cross-linked in water. The tight oil reservoir COmulti-scale channel control system, has strong flow control ability during COdisplacement, and high-strength carbon nanotubes are introduced into the micro-scale COresponsive dispersion gel, which effectively improves the strength and long-term stability of the dispersion gel, significantly enhances the sealing effect on cracks, and after displacement of the COof the system, the worm-like micelles revert to spherical micelles with good responsive reversibility.

Tight oil reservoir COflooding multi-scale channeling control system and preparation method

Growing community of inventors

Chengdu, China

Bowen Chen