| 摘要 |
<p>An oil in water emulsion for use in producing hydrocarbons from a subterranean formation, said oil-in-water emulsion comprising an aqueous continuous phase and a hydrocarbon internal phase, said emulsion stabilized by a surfactant, wherein said surfactant comprises the following properties: (i) has an HLD that is less than 0; (ii) produces an emulsion wherein the interfacial tension between the hydrocarbon phase and the aqueous phase is less than about 5 mN/m; and (iii) does not phase separate at a temperature of from about 10°C to about 20°C above the formation temperature.</p> |
