一种中低矿化度地层水储层的参数反演方法及装置

Parameter inversion method and device of medium-low-mineralization-degree formation water storage layer

Abstract

本发明提供了一种中低矿化度地层水储层的参数反演方法及装置,方法包括:获取双侧向测井资料、阵列感应测井资料及辅助测井曲线资料;根据双侧向测井资料与辅助测井曲线资料对储层段进行分层;根据双侧向测井曲线、阵列感应曲线生成对应层的初始的原状地层电阻率、侵入带电阻率、侵入半径值;生成对应层的双侧向模拟响应曲线以及阵列感应模拟响应曲线;分别判断对应层的双侧向模拟响应曲线与对应层的双侧向实测曲线及阵列感应模拟响应曲线与对应层的阵列感应原始响应曲线是否一致,一致,将原状地层电阻率、侵入带电阻率和侵入半径值作为储层段的反演结果输出;否则修改初始的原状地层电阻率、侵入带电阻率和侵入半径值。
The invention provides a parameter inversion method and device of a medium-low-mineralization-degree formation water storage layer. The method comprises the steps that dual-lateral logging information, array sensing logging information and auxiliary logging curve information are obtained; according to the dual-lateral logging information and the auxiliary logging curve information, a storage layer section is subjected to layering; according to a dual-lateral logging curve and an array sensing curve, the initial original stratum resistivity, the invaded zone resistivity and the invading radius value of a corresponding layer are generated; a dual-lateral simulation response curve of the corresponding layer and an array sensing simulation response curve are generated; whether the dual-lateral simulation response curve of the corresponding layer and a dual-lateral measured curve of the corresponding layer are in accordance and whether the array sensing simulation response curve and an array sensing original response curve of the corresponding layer are in accordance are judged respectively, if yes, the original stratum resistivity, the invaded zone resistivity and the invading radius value are output as the inversion results of a storage layer section; and otherwise, the initial original stratum resistivity, the invaded zone resistivity and the invading radius value are modified.

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