The investigation of the mechanism of CO 2/water flooding in ultralow-permeability oil
reservoir is critical to the enhanced oil recovery. In this study, a series of core flooding …

CO 2 miscible flooding is a prospective production method to enhance oil recovery (EOR),
especially in low-permeability reservoirs. However, there is a lack of comprehensive and …

This study introduced an innovative approach for the synthesis of amphiphilic Janus
nanosheets. Thermally expandable microspheres (TEMS) were used as a template, and …

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 …

Fractured reservoirs exhibit heterogeneity and high conductivity, posing challenges to the
application of low-carbon and clean production technologies. In this study, the flow and …

Janus nanosheets can reduce the interfacial tension of oil and water and are of great
significance for improving the recovery efficiency of remaining oil. A novel strategy for …

CO2-soluble surfactant foam systems have gained significant attention for their potential to
enhance oil recovery, particularly in tight oil reservoirs where conventional water-soluble …

The stability of betaine foam can be enhanced by salts in reservoirs, even with salinity as
high as 2× 10 5 mg/L, which offers great potential for cost-effectively improving the foam …

This research fills the gap in understanding the impact of corrosion inhibitors (CIs) and a
chelating agent on the rheology and stability of foam under harsh conditions. In this regard …

Foam is commonly used in tertiary oil recovery because it plugs specific areas. Foam is
thermodynamically unstable owing to reservoir complexity. Foam stability in the reservoir is …