Research Article

Nutrient Stimulation of Indigenous Microorganisms for Oil-in-Water Emulsion in a Medium Temperature Petroleum Reservoir with Ca2+-Rich Brine

Figure 2

Emulsification effects of the stimulated formation water with crude oil: (a) emulsify grade determination of six formulas and the original formation water sample; (b) microscopic images of emulsified crude oil; (c) droplet size distribution of crude oil emulsion.
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