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喇嘛甸油田在高含水开发后期剩余油精细挖潜研究中,面临密井网条件下厚度2m以上砂体的边界识别问题,常规纵波地震解释存在多解性,引入转换波信息可增加地震解释的可靠性.基于喇嘛甸工区三维三分量地震数据,本文由测井曲线分析得出,密度、LR和MR能够很好地反映储层岩性变化.在纵波层位约束下的纵横波层位精细匹配解释基础上,由纵横波联合反演求出这3种属性数据体.井-震结合,应用属性切片技术得到不同小层的砂体平面展布,与钻井绘制的沉积相图具有较高的一致性,并在气藏描述、砂体识别、河道刻画中见到显著的地质效果.该研究为喇嘛甸油田主力油层剩余油挖潜研究提供了基础资料,同时展示了该区扶余油层的良好勘探前景.
In the research on the fine tapping potential of remaining oil in the late stage of high water cut, Lamadian Oilfield is faced with the problem of boundary recognition of sand body above 2 m thick with close-well patterns. Conventional longitudinal wave seismic interpretation has multiple solutions. Introducing converted wave information can increase the reliability of seismic interpretation Based on the three-dimensional and three-component seismic data of Lamadian work area, this paper analyzes the logging curves and shows that density, LR and MR can well reflect the reservoir lithology changes.The P- On the basis of interpretation, these three kinds of attribute data bodies are obtained by inversion of P- and S-wave combination.With well-seismic combination, the sand body distribution of different small layers is obtained by using the attribute slicing technique, which is in good agreement with the well- And shows remarkable geological effects in gas reservoir description, sand body identification and river characterization.The study provided the basic data for the study of residual oil tapping in the main oil layer of Lamadian Oilfield, and also demonstrated the good exploration of the Fuyu oil layer in this area prospect.