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为了解决开发过程中储层精细刻画难题,提出将曲线重构地震反演技术引入带储层预测工作中,根据曲线不同频带范围对砂岩敏感性特征,开展基于高频恢复、低频补偿原来的曲线重构技术开展地震反演预测.通过对南八区西部的地震反演实例表明:对于大于2m砂岩分辨能力较高的,隔层太小时,两套砂岩只能当一套砂岩组合反演出来;对于小于2米的砂岩,只有当隔层大于4m条件下才能清晰识别.地震反演能很好的推测地下岩层结构和物性参数的空间分布,有效的提高了薄储层预测精度.
In order to solve the problem of fine reservoir characterization in the process of development, this paper proposes to introduce curve reconstruction seismic inversion into reservoir prediction. Based on the sensitivity of sandstone to different frequency bands, the original curve based on high frequency recovery and low frequency compensation Reconstruction technology to carry out seismic inversion prediction.Examples of seismic inversion in the western part of N8 area show that for the sandstone with a resolution higher than 2m and the interlayer is too small, For sandstone less than 2 meters, it can be clearly identified only when the interval is more than 4m. The seismic inversion can well predict the spatial distribution of the structure and physical parameters of underground rock formations, effectively improving the prediction accuracy of thin reservoirs.