温西三区块注水开发效果评价

Evaluation on Waterflooding Development Effect in Block Wenxisan

该文对温西三区块注水开发效果进行了系统评价,为了更好地利用注入水高效开发油田,迫切需要对油田注水效果进行评价。对高含水期合理地层压力保持水平进行了论证;对井网适应性进行了评价,分析了剖面动用变化原因;利用存水率、耗水指数和含水采出比对注水利用状况进行了评价,结果表明区块注水利用率比较高、注水开发效果比较好;利用多种水驱特征曲线对区块进行了分析,并根据注水效果评价提出了改善注水开发的建议。

Waterflooding effect in block Wenxisan has been evaluated systematically. In order to develop oilfield effectively by waterflooding, it is necessary to evaluate effect of the oil：field. The maintenance of reasonable reservoir pressure in high water - cut stage is discussed, well pattern adaptability is evaluated, and reasons for the variation of producing profile are analyzed. The status of water injection is evaluated by using water storage rate, water con- sumption index and produced water cut ratio. The results show that water injection utilization ratio is high, water- flooding effect is good. Using several waterflooding characteristic curves analyze the block, and improvement sug- gests are presented for water injection development according to the waterflooding effect evaluation.