萨东过渡带南5-2-水41井组综合治理试验

Comprehensive treatment performed for N5-2-w41 well group

对萨东过渡带南 5 -2 -水 41井组进行了综合治理试验 ,并且对其做了全面评价 .结果表明 ,采用调剖、堵水、压裂等综合措施后 ,改善了南 5 -2 -水 41井组的注水结构 ,挖掘了差油层的潜力 ,减缓了含水上升速度及产量递减速度 ,截至含水 98%时 ,累计增油 1.663 5× 10 4 t ,提高采收率 0 .43 % 。

This paper demonstrates a study on the comprehensive treatment performed for N5-2-w41 well group and gives an accurate and complete evaluation of it. The research shows that profile modification, fracturing and water plugging comprehensively applied in this field test significantly improve the structure of water injection for N5-2-w41 well group, excavate the potential of poor zones, reduce water cut, increase oil production and achieve a good result in the aspect of enhancing oil recovery and lessen water production.Up to the water cut of 98%, a cumulative oil incremental of 1.6635×10 4 t can be obtained,i.e., the final oil recovery can be enhanced by 0.43%.