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高矿化度地区残余油饱和度对水淹层测井评价影响分析 被引量:1

Effects of Residual Oil Saturation in High Salinity Area on Log Evaluation of Waterflooded Zones
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摘要 在水淹层测井解释过程中 ,时常遇到物性较好的中高渗透率储层 ,测井解释的含油饱和度比较高 ,试油投产的结果却是高产水 ,有时产水率达 10 0 % ,其原因可能是储层残余油饱和度较高所致。岩心水驱油实验资料分析证实 ,部分中高渗透率层注水开发后确实存在残余油饱和度较高的现象。分析了高残余油饱和度对目前水淹层测井评价所造成的各种影响及解决办法。 In log interpretation of waterflooded zones, we often encounter with better mid-high permeable reservoirs, so the oil saturation obtained from log interpretation is higher, but, the oil test and production data display the reservoirs contain much water, and sometimes, the water production rate there reaches up to 100%, which is resulted from the higher residual oil saturation in the reservoirs. The correlation between the results of core water displacement tests and production data show that rich residual oil still gather in such reservoirs after water-injection development. Analyzed are effects of high residual oil saturation on log evaluation of waterflooded zones, and proposed are some methods to improve the log evaluation of these zones.
出处 《测井技术》 CAS CSCD 2004年第4期319-320,共2页 Well Logging Technology
关键词 注水开发 残余油饱和度 水淹层 测井评价 影响 flooding development residual oil saturation waterflooded zone log evaluation effect
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  • 1李雪.东营凹陷东辛油田油气成藏模式[J].应用基础与工程科学学报,2004,12(2):169-178. 被引量:7
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