强底水油藏注水开发可行性研究
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摘要
为深入探究强底水油藏注水开发提高采收率的可行性,为同类油藏开发提供借鉴,通过精细数值模拟,有针对性地设计多套井组转注及全区转注方案,优化注水参数,并进行效果分析。结果显示,优化参数转注,可以提高油藏采收率,但效果并不明显。从受效井水侵量来看,采出水主要为地层水,注入水波及范围小,且油井转注后损失原油产量,同时转注需要相应配套设施工艺,经济上存在很大风险。基于此,建议此类油藏勿转注水开发
To delve the feasibility of improving the oil recovery for waterflooding development of strong bottom water reservoir, to provide reference for the development of similar reservoir and using fine numerical simulation technology, more conversion injection programs of targeted well area and the conversion injection schemes of entire reservoir blocks were designed, injection parameters were optimized and effects were analyzed. The results show that after conversion injection and parameter optimization, oil recovery can be improved, but the effect is not obvious. From the water influx of effected well, produced water is mainly formation water. The range swept by injected water is small and the crude oil production loses after conversion injection of oil well. At the same time,conversion injection also requires matching facilities and there is a big risk on the economy. Based on this, it is suggested that similar reservoirs do not convert injection development.
引文
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