曲线重构反演在储层横向预测中的应用

声波曲线是目前进行基于测井约束的波阻抗反演工作所必备的基础资料，然而在实际工作中得到的声波资料经常不能很好地反映地下岩性的变化规律，因此有时需要参考其他测井信息进行曲线重构工作。本文在对测井曲线重构方法进行深入研究的基础上，提出一种能真正反映储层特征的多曲线声波重构技术。这种方法由于是在保持声波曲线特性的基础上，利用自然伽马、自然电位、补偿中子及电阻率曲线（经过标准化和归一化校正）参与重构，故既能保持声波曲线的时深关系和所有频率信息不变，又能充分利用参与重构曲线的特征信息。通过对D 区实际例子进行波阻抗反演和储层预测的应用，取得了良好的效果，表明该方法是一种简单、实用、有效的曲线重构技术。

Application of Curve Recomposition Inversion in LateralReservoir Prediction

Acoustic curves are the basic data essential for the wave-impedance inversion based on the logging restraint. Butthe acoustic data obtained from practical work usually cannot well reflect the changing rules of subsurface lithology based onthe logging curve reconstructive method. The paper presents a multi-curve sonic reconstructive technique that can truly reflectthe character of reservoir. The method can both keep the time-depth relation of sonic curve and all frequency informationto be unchanged，and also fully use the characteristic information of reconstructive curve participated since the method usesnatural gamma，natural potential，compensated neutron and resistivity curves（after normalization correction）to participate inreconstruction while keeping the property of sonic curve. The method achieved good results after carrying out wave impedanceinversion and prediction of reservoir in the case of D region，which showed that the method is simple，practical and effectivecurve reconstructive technique.