Biot系数在钻井工程、压裂工程等方面具有重要应用价值,目前常用的测井解释Biot系数公式依赖于全波测井,推广性有限。考虑颗粒岩及结晶岩受力变形机制,在岩心试验测试结果的基础上,利用广义Usher模型建立起Biot系数解释方法。利用该模型,结合测井数据,计算得到单井岩石力学及地应力参数剖面,与实钻资料吻合情况良好,表明该Biot系数评价方法有一定的推广应用价值。 The Biot coefficient has important application value in drilling engineering and fracturing engineering. At present, the Biot coefficient formula of well logging interpretation relies on full-wave logging and has limited promotion. Considering the mechanical deformation of granular rock and crystalline rock, based on the core test results, the Biot coefficient interpretation method is established by using the generalized Usher model. By using this model and log data, the single-well parameters of rock mechanics and geostress are calculated, which is in good agreement with the real drilling data. It shows that the Biot coefficient evaluation method has some value of popularization and application.