ArticleACS omega2026
Surfactant/Polymer Flooding Combined with Gel and Polymer Microsphere Plugging for Enhanced Oil Recovery in a Low-Permeability Reservoir.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
13 authors.
Funding
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Abstract
Low-permeability reservoirs, a critical component of the global energy supply, exhibit low oil recovery with conventional technologies due to complex pore structures and poor fluid flow. Single chemical flooding is constrained by insufficient salt tolerance and weak deep control. This study proposes a combined system of "surfactant/polymer (SP) flooding → gel blocking → microsphere deep profile control" and investigates its performance under simulated reservoir conditions (25,000 mg/L salinity, 65°C). Results demonstrated: The SP system maintained 35 mPa·s viscosity in high-salt environments, reduced oil-water interfacial tension to 5.0 × 10
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