Combined microfluidics–confocal Raman microscopy platform for studying enhanced oil recovery mechanisms

Abstract

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Development of a Microfluidic Method to Study Enhanced Oil Recovery by Low Salinity Water Flooding

“…These narrow water paths for all the tests were on the two sides of the chip along the flow direction. In micromodels initially saturated with HS-NaCa, divalent ions bind negatively charged acidic group oil components to the negatively charged surface. , Because of the stronger bond in the presence of divalent ions, we observed a slightly lower recovery.…”

Recent advances in linear and nonlinear Raman spectroscopy. Part XIV

“…They showed experimentally that information about monomer to polymer conversion could be obtained by applying linear modeling of the mixture to a single band of the Raman spectrum, which provided an alternative method of using a ratio of integrated intensities. Gao et al [ 191 ] used a combined microfluidics‐confocal Raman microscopy platform for the improvement of determining oil recovery mechanisms. They expect that their platform will pave the way to systematic screening of water flood compositions in more complex systems.…”

Sustainable scale resistance on a bioinspired synergistic microspine coating with a collectible liquid barrier

“…3 In the petroleum industry, 4 especially for the recovery of oil from lean oil fields (B80% oil fields in China), large amounts of oil/water mixtures (so-called produced water) generally cause scale accumulation because of their mineral solution with high salinity. 5,6 Inevitably, the scale deposition brings serious consequences, such as blockage, corrosion and even explosion of the pipelines and equipment. 7,8 However, conventional scale-resistant strategies, such as mechanical descaling 9 and chemical detergents 10 often bring about plant shutdown and environmental pollution.…”

“…In actual oil recovery and transportation, the produced water is often composed of complex multi-phases including oil products, water, salt ions and scales. [4][5][6] However, most of the studies mainly focus on a single-phase liquid environment, such as scaling aqueous solution. It remains a great challenge to develop innovative functional coatings for conquering scale deposition.…”