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通过地应力测量方法、计算方法的分析和对比,建立了利用常规测井资料和成像测井资料计算地应力的多种方法,从不同的角度对地应力进行了研究,特别是成像法充分利用成像测井资料对井壁破坏形式的准确判别来约束反演地应力大小,得到了连续的最大和最小水平地应力剖面,并得到了三个压力剖面,这将有助于井眼稳定性分析和压裂设计。
Through the analysis and comparison of geodetic stress measurement methods and calculation methods, a variety of methods for calculating geostress using conventional well logging data and imaging well logging data are established, and the in-situ stress is studied from different angles, especially the imaging method Accurate discrimination of wellbore damage by imaging logging data constrains the inversion of the in-situ stress, obtains the continuous maximum and minimum horizontal stress profiles, and obtains three pressure profiles, which will be helpful for the wellbore stability analysis And fracturing design.