The present situation of pilot tests for enhanced oil recovery by employing petroleum sulfonates worldwide issummarized. 综述了国内外应用石油磺酸盐进行三次采油矿场试验的研究现状。
Current and foreseeable oil prices are very favorable for EOR implementation, particularly in the reservoirs that contain heavy oil that was not tapped in the past. 目前可观的石油价格是非常有利的三次采油技术的实施，特别是含有稠油的油藏而在过去不易开采。
