【摘要】 由于测井资料计算的泊松比与地下岩石的真实特性存在一定的差异,故寻找精确计算泊松比的方法十分必要.以X区块致密砂岩储层为研究对象,以岩心实验资料为基础,分析了实验结果与测井资料计算结果之间的差异及其原因,并在此基础上建立了泊松比的精确计算模型.通过对目的区块的实际资料处理,验证了该模型的可靠性.该模型计算精度较高,其结果完全能满足X区块岩石力学特性研究和井眼稳定性研究的需要.更多还原

【Abstract】 Until now,directly using conventional logging method to calculate rock Poisson ratio is not precise enough.For this reason,analyzing the pore fluid influence on Poisson ratio based on previous studies,we investigate the most of testing data,the compression wave time difference,shear wave time difference and formation porosity to build a mathematical model of Poisson ratio based on correcting the compression wave time difference.The above approach is used to calculate the Poisson ration of compacted rocksand in X Area.The result completely meets the requirement for studying rock mechanics and borehole mechanical stability.更多还原