双河油田开发后期堵水挖潜

Yang Kun. Water plugging and potential tapping in the late development of Shuanghe oilfield.

根据双河油田开发后期剩余潜力的分布特点，在常规增油措施中，堵水的作用越来越重要。有效堵水不仅能够挖潜增油，还能够降低产水，改善产液剖面，起到控水稳油作用。只有根据沉积亚相及油水井在相带上的组合关系，采取不同的堵水方式，并与其它措施恰当地结合，才能达到有效堵水目的。堵水前，要保证非限制层的地层能量充足。双河油田自１９９５年以来的有效堵水，共增油３３３３２ｔ，地层压力回升０．３４ＭＰａ，控制含水上升率为０．６％～０．８％，直接节约成本２０００万元。

According to the characteristic of residual oil distribution in the late development of Shuanghe oilfield, among the conventional stimulations treatments, water plugging becomes more and more important.It can not only tap oil production potential, but also reduce water production. Only base on the sedimentary facies and the relationship between oil wells and water wells taking different water plugging methods and other property measures can get the best effect.Before water plugging measure is used, the non control layer's sufficient energy must be maintained. Since 1995, 33332 tons of incremental oil by effective water plugging in Shuanghe oilfield has been obtained, the formation pressure has built up 0.34 MPa, the water cut raising is controlled in the range of 0.6%～0.8%, $2000×10 4 of cost is saved directly.