水平井射孔井段的井眼附近若有泥质夹层，无疑对水平井提高采收率是很不利的。
If there is a shale sandwich near wellbore in horizontal well logging, it is harmful to promote production rate.
摘要：SAGD开发效果对储层非均质性十分敏感，泥页岩夹层对双水平井sagd的泄油通道有一定的影响。
Abstract: SAGD performance is very sensitive to reservoir heterogeneity, and shale interlayers have a certain effect on a SAGD drainage channel with dual horizontal Wells.
上部为中薄层状富泥的含石膏质夹层的泥质泥晶灰岩、微晶白云岩组成的旋回性清楚的似蒸发潮坪层序。
The upper part is a set of evaporite quasi-tidal sequence with clear cycles which is made up of middle-thin-bedded, gypsum-bearing muddy limestone and dolomicrite.
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