储层特征曲线重构反演技术 ———以冀东油田南堡凹陷为例

由于受多种因素影响，南堡地区主力含油层段声波测井曲线不能直接反映储层特征。依据本区地质特点 和资料情况，以地质、测井、地震综合研究为基础，以岩石物理学为理论指导，利用测井曲线重构技术分析了不同 测井曲线对于储层的敏感性以及与声波时差的相关性。根据分析结果，优选出了既能反映岩性特征又与声波时 差之间存在较好相关性的自然伽马、密度、电阻率、补偿中子等测井曲线，然后采用数理统计的方法重构能反映 储层特征的曲线，再以该特征曲线为约束条件，开展了测井约束反演。处理结果表明，该方法在储层预测、岩性 识别等方面的应用效果较好。

Construction of characteristic curve and inversion of reservoir property: A Case study in Nanpu depression of Jidong oilfield

The acoustic logs from the main hydrocarbon-bearing segments are not directly corresponding to the reservoir characters in Nanpu area.Based on an integrated research of the geology,logs,and seismic data and guided by rock physics,we investigated the sensitivity of logs to reservoir and their correlations with interval transit time via log reconstruction technique.Logs that reflect lithological characteristics and correlate closely with interval transit time such as natural gamma ray log,density,resistivity,and compensated neutron log were selected and used to construct the reservoir characteristic curve.The resulted curve was then used to constrain inversion.Real data experiments show that the proposed method yields desired results in reservoir prediction and lithologic identification.