多分量地震资料在K71井区的应用研究

Application of multiple-components seismic data in Ken71 well area.

简要介绍了胜利油田K71井区多分量地震资料的特点以及解释和应用情况。利用研究区多分量地震资料和纵、横波测井资料,分析了转换波剖面的极性,讨论了全波合成地震记录制作、深度域层位标定和剖面压缩层位标定等方法;在此基础上进行了纵、横波属性分析和转换波各向异性流体检测等。利用上述方法,对实际资料进行了层位对比和解释,结果与实际钻井数据相吻合;对小层砂岩进行了预测,获得了有利砂岩分布范围;对流体性质与地震属性的对应关系进行了分析,了解了油气水的分布规律;进行了水淹区和剩余油区预测,获得了一些新的认识,对指导油气田的开发具有实际意义。

The characteristics of multiple-components seismic data in K71 well area are introduced,as well as its interpretation and application. By using multiple-components seismic data,P-wave and S-wave well log information,the polarity of P-SV wave section was analyzed,methods were discussed in full wave synthetic seismogram production,formation calibration in depth domain,and profile compressing formation calibration,etc.on this basis,the attributes of P-wave and S-wave are analyzed,the anisotropy of P-SV wave is detected.By using the method,the formations in real data were contrasted and interpreted.The result coincides with actual drilling data.The sandstone in subzone was predicted,and the favorable sandstone distribution range was obtained.The corresponding relationship between fluid properties and seismic attributes was analyzed to recognize the distribution rule of oil/gas/water.The water flooding area and residual oil distribution area were predicted,and some new recognition was achieved,which has practical significance for guiding development of oilfield.