胜利油田三次采油技术的实践与认识

通过技术探索、研究试验、工业化推广和新驱油体系技术攻关，三次采油技术已成为胜利油区老油田持续稳产的主导技术，截至2006年3月，累计增产原油达到1150万t。经过多年攻关研究，发展了化学驱油理论，胜利油田化学驱由单一的聚合物驱发展为多个复合驱油体系，并形成了具有胜利油田特色的化学驱配套技术。目前，胜利油田三次采油面临着聚合物驱优质资源接替不足、三次采油技术接替难度大、三次采油技术发展的不平衡及已实施化学驱单元的效果差异较大等问题，需要增强化学驱技术和产品创新能力，强化储备技术攻关、拓宽三次采油技术发展空间，抓好注聚项目管理、提高降水增油效果，强化先导试验研究、加快三次采油技术接替。参15

Practice and understanding on tertiary recovery in Shengli Oilfield

The tertiary recovery has become the dominant technique for the stable production of old oilfields in the Shengli Oilfield.The cumulatively incremental oil was up to 11.50 million tons by the end of Mar.2006.Chemical flooding has developed from single polymer flooding to multiple compound flooding systems in the oilfield,and a complete set of chemical flooding with the oilfield's characteristics was formed.The tertiary recovery is facing some major problems,such as inadequate high-quality resources of the polymer flooding,replacement difficulty and unbalanced development of the tertiary recovery technology,and great resulted differences among the chemical-flooding implemented units,etc.The chemical flooding technology and the ability to innovate new products should be strengthened.The developmental space of tertiary recovery should be widened through continuously extending technical storage.The polymer-injection project should be well managed so as to enhance the effect of water decreasing and oil increasing.The intensive pilot study will make the tertiary recovery technology replacement faster.