Foam has been applied in enhanced oil recovery (EOR) for more than sixty years. The
surfactant-stabilized N 2/CO 2 foams are two of the most widely used foams in foam EOR …

As the world faces the challenges of meeting energy demand, reducing reliance on
conventional oil and gas resources, and improving global climate conditions, developing …

Oil reserves of the thin heavy oil reservoirs are estimated to be over 400 billion barrels. The
recovery factor of water-flooding in these reservoirs is as low as 10–20% due to the high oil …

A novel ultrastable aqueous foam with controllable structure and Plateau borders was
synthesized by adding polyvinyl alcohol (PVA) and nano-alumina (NA) complexes to the …

Water-alternating gas (WAG) is affected by viscous fingering (with too much gas) and
trapping of reservoir oil (with too much water) that can be addressed by advanced methods …

The Bohai oilfield is a typical common heavy oil reservoir with high water cut after long-term
water injection development. Considering the characteristics of selective plugging, polymer …

Foam mobility control technique has been extensively applied to encounter unfavorable
sweep efficiency during CO 2 injection in heterogeneous reservoirs. Harsh reservoir …

Foam-assisted deoxidized-air flooding is a promising technique for improving oil recovery,
particularly in low-permeability oil reservoirs. However, significant differences in …

Foam stability can be significantly improved by adding a polymer in foam system, mainly due
to the reduction of liquid drainage and the enhancement of interfacial adsorption behavior …

This article is designed for the application of Cocamidopropyl hydroxyl sulfobetaine (CHSB)
in the nitrogen foam flooding under the high-temperature and high-salinity environments …