塔中地区奥陶系礁滩型储层地震反射特征研究

Seismic reflection characteristics research on Ordovician reef flat reservoirs of Tazhong area

塔中地区良里塔格组的礁滩体储层具有多种反射特征,主要表现为强串珠状反射、弱串珠状反射及表层弱反射,这些不同的地震响应特征代表了不同的储层类型及储层发育模式。通过应用地震相分析、地震属性分析、地震反演等多种技术手段预测了该区礁滩相储层的平面分布。同时结合塔中地区奥陶系古地貌图,总结了不同反射特征的礁滩型储层发育规律及主控因素,为将来塔中地区的勘探和开发提供指导。

The reef flat reservoirs of Lianglitage formation in Tazhong area are of a variety of reflection characteristics,mainly behaving as strong beaded reflection,weak beaded reflection and weak surface reflection.These different seismic response characteristics represent different reservoirs types and reservoir development patterns.Through the application of seismic facies analysis,seismic attribute analysis,seismic inversion,and other techniques,the plane distribution of the reef flat facies reservoirs in this area have been predicted.Combined with Ordovician palaeogeomorphology of Tazhong area,different reflection characteristics regularity of the reef flat reservoirs and its main controlling factors have been summarized,which provides guidance for future exploration and development in Tazhong area.