In recent years, polymer micro/nanogels which are re-crosslinked polymers with 3D
networks, have attracted a lot of interest in Enhanced Oil Recovery (EOR) field. In size of …

Multiphase displacement in porous media can be adjusted by micro/nanoparticle
suspensions, which is widespread in many scientific and industrial contexts. Direct …

Particle migration in porous media is of great significance in the areas of formation-water
filtration and oil field development. The current theories and methods ignore the effect of …

Flow regimes of two immiscible liquids are experimentally investigated in a rectangular
microchannel using a water–oil system. Oil-water viscosity ratios are varied from 0.2 to 75 …

The oil production rate decreases rapidly after a short period of high yield from acidizing or
fracturing in low-permeability reservoirs. In this paper, nanospheres are applied before the …

CO2 flooding is a favorable technical means for the efficient development of low-
permeability reservoirs, and it can also contribute to the realization of net-zero CO2 …

The polymeric surfactant can be used as an efficient agent for enhanced oil recovery (EOR)
because of its large bulk viscosity and good interfacial activity. However, there is a sparse …

Heavy oil recovery mechanisms by combination flooding have well recognized as
viscosification, ultra-low interface tension (IFT) and emulsification, however, the role or …

There are more than 40% remaining oil trapped in the reservoir in the mature oilfield even
after second and tertiary recovery processes. High performance chemical agent was …

Nanospheres have been used as an available plugging material to solve the problem of
water intrusion, which is of crucial importance to enhanced oil recovery (EOR). However, the …