ArticleACS omega2026
Using Nanopolymeric Microspheres for Enhanced Oil Recovery in a High-Salt Oil Reservoir in B‑3 Block, Erdos Basin, China.
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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9 authors.
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Abstract
To address the challenges of inefficient water flooding and low oil recovery in high-salinity, low-permeability reservoirs of the B-3 Block, Erdos Basin, this study developed a novel temperature-resistant and salt-tolerant nanosphere system based on an acrylamide (AM)/2-acrylamido-2-methylpropanesulfonic acid (AMPS) copolymer. Systematic physical simulation experiments were conducted to evaluate the performance and enhanced oil recovery (EOR) potential of these nanospheres under high-temperature and high-salinity conditions. Results demonstrate that the nanosphere system retains excellent swelling stability and plugging capacity at a salinity of 23,800 mg/L and 50 °C while achieving effective injectivity and in situ migration within cores possessing pore-throat sizes of 10-300 × 10
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