碳酸盐岩地层的测井流体识别是石油测井数据处理与解释的重要内容和难点.本文基于Gassmann等效介质理论和流体替换基本原理,详细研究了基于测井数据和评价结果的流体替换方法,实现步骤和流程.针对塔河油田奥陶系地层,利用测井资料和试油资料,应用该流体替换方法和流程分别进行了饱含水、饱含气和饱含油的流体替换,根据流体替换前后的密度、速度以及体积模量等岩石物理参数的变化,实现了碳酸盐岩地层的流体识别. Well Logging Fluid Recognition in Carbonate Formation is an Important Content and Difficult Point of Oil Well Logging Data Processing and Interpretation Based on Gassmann Equivalent Medium Theory and Fluid Replacement Fundamentals, fluid replacement based on log data and evaluation results Method, procedure and flow of this method.Aiming at the Ordovician strata in Tahe Oilfield, using the logging data and test oil data, the fluid replacement method and process are respectively used to replace the fluid which is full of water, full of gas and full of oil, Before and after the density, velocity and bulk modulus of rock physical parameters such as changes in the realization of the carbonate rock fluid identification.