| 摘要 |
<p>OXYALKYLATED SULFONATE IN AQUEOUS ALKALINE SOLUTION FOR OIL RECOVERY (D#74,033-1-F) A process for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation by injecting into the formation via an injection well an aqueous alkaline flooding medium such as water, steam, etc. containing a small amount of a sulfonated, oxyalkylated interfacial tension reducer, forcing the said flooding medium through the formation and recovering hydrocarbons via a production well. -I-</p> |
