三次采油技术的发展

国内主要油田三次采油技术有很大的发展，三次采油这个系统工程在组织管理和技术攻关上具有许多成功做法。三次采油作为注水开发后期的主要接替技术已经形成共识，大庆油田已在北二区、北一中块、喇北东块等６个区块开展面积达５０ｋｍ~２的注聚采油，１９９７年三次采油年产油量已达５００×１０~４ｔ，占总采油量的８．８％；胜利油田１９９７年已投注８个化学驱试验项目，化学驱面积达３０．７ｋｍ~２，１９９７年三次采油量为１００× １０~４ｔ以上；大港油田注聚面积近１２ｋｍ~２。

The Development of Tertiary Oil Recovery Technology

Tertiary oil recovery technique has greatly developed in the country. There are many successful achievements in tertiary oil recovery such as orgnization, management and tackling key problems etc. Tertiary oil recovery is the replacement of waterflood developing oilfield. In Daqing oilfield has developed nearly 50km~2 area injecting polymer oil recovecy, in 1997 tertiary oil recover production has got 5,000,000t account for 8. 8 % of its total oil production. In Shengli oilfield in 1997 eight chemical driven test projects have put into operation, chemical driven area got 30.7km~2, Tertiary oil recovery production over 1,000,000t. In Dagang oilfield injecting polymer area over 12km~2.