塔中奥陶系缝洞型碳酸盐储层空间展布复杂，目前预测识别仅依靠地震反演及地质建模等静态方法，对储层分布及发育范围缺乏准确有效描述手段；同时，仅定性判断井间连通关系，不能合理描述井间储层连通范围。通过多种井间连通性分析方法判断单井单元或多井单元，利用压力恢复不稳定试井及生产数据试井分析，确定储层渗流特征、边界条件和等效泄流面积、动态储量等，结合地震反演、储层预测、缝洞雕刻等静态地质特征，利用数值试井技术建立油气藏平面属性模型并进行拟合分析，不断调整各项相关参数及修正边界范围，达到双对数曲线和生产全过程压力历史曲线拟合良好。动态验证并明确储层分布特征。最终精细刻画连通储层边界范围并得到不同渗流区域储层渗流特征及储量大小。应用到塔中区块多口井实际生产开发中，评价储层特征进行注水开发、指导井位部署，收到良好效果；也为类似复杂油气田开发提供一种可靠技术方法。%The space distribution of the Ordovician carbonate reservoir in Tazhong is complex,and the current prediction and identification are based on the static methods,such as seismic inversion and geological modeling.At the same time,it can only be used to judge the relationship between the well and the well,and it can’ t describe the connectivity of the well.The single well unit or multi well unit is determined by multiple connectivity analysis meth-od.The reservoir seepage characteristics,boundary conditions and oil supply area,OGIIP are determined by stress recovery unstable well test and production data well test analysis.Seismic inversion,reservoir prediction,fracture cave carving and other static geological features were combined,then used the numerical well testing technique to establish the plane attribute model of oil and gas reservoir,to adjust the relevant parameters and modify boundary range.To achieve log-log curve and the production of the whole process of the pressure history curve fitting, verifi-cation of reservoir distribution characteristics in dynamic.Finally,the boundary of the connected reservoir,the perco-lation characteristics and OGIIP in different seepage zones are determined.Applied to a lot of wells in Tazhong,re-ceived good results in evaluation of reservoir characteristics,water inject and well deployment guidance.It also pro-vides a reliable technique for the development of similar complex oil and gas fields.
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