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卫星油田PⅠ层组为该油田的主力油层组,层组内单砂层厚度较薄、空间连续性差。将PⅠ层组纵向上划分为上、中、下3个组合单元,利用地震波形能够给以较好的反映。测井曲线具备好的沉积微相识别能力,将每个单元里存在河道或河坝砂体定义为砂体发育,不存在的定义为互层发育,考察卫星油田三维地震工区近100口井资料识别的沉积微相与地震波形的对应关系,建立8种地震波砂体反射模式,依据模式可有效推测出卫星油田PⅠ层组勘探空白区的砂体发育状况,为该油田部署有利井位提供技术支撑。
The PⅠlayer of satellite oilfield is the main oil reservoir in this oilfield. The thickness of single sand layer in the reservoir is thin and its spatial continuity is poor. The PⅠlayer is divided longitudinally into upper, middle and lower combination units, and the seismic waveform can give a good reflection. Logging curves have good recognition ability of sedimentary microfacies. The existence of channel or river sandbodies in each unit is defined as the development of sand bodies. The definition of non-existence is interbedded development. The data of nearly 100 wells in the 3D seismic work area of the satellite oilfield Based on the model, it can effectively infer the sandbody development status of the exploration blank area in the PⅠlayer of the satellite oilfield and provide the technical support for the deployment of favorable wells in this oilfield support.