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多井约束反演技术Interwell—3D是一种基于三维模型的交互式地震地层反演,具有层位标定、构造解释、快速建模等功能。引入三维地质模型约束机制,以钻井、测井资料为约束,采用网格反演的算法,反演出高精度波阻抗数据体,为进一步研究储层的空间分布、物性特征等提供可靠基础资料。应用该枝术对文东地区目标区Es33—Es34:地层进行了储层预测,对砂体的空间分布、厚度变化、物性特征做了精确描述,与钻井符合较好,为圈定有利储层提供了可靠依据。
Multiwell constrained inversion technique Interwell-3D is an interactive seismic stratigraphic inversion based on three-dimensional model with the functions of horizon calibration, structural interpretation and rapid modeling. The constrained mechanism of 3D geological model is introduced. With drilling and well logging data as constraint, the grid inversion algorithm is used to invert the data body of high-precision wave impedance so as to provide reliable basic data for further study on the spatial distribution and physical properties of reservoirs. Applying this technique, the reservoir prediction of Es33-Es34: stratigraphy in the target area of Wendong area has been carried out. The spatial distribution, thickness variation and physical properties of the sand body have been accurately described. They are in good agreement with the well drilling and provide for the delineation of favorable reservoirs Reliable basis.