在综合分析文古4井地区岩石的弹性波速、泊松比、密度等参数的基础上，研究地应力的分布规律，以期能够为地质问题的研究和后期该区的油气勘探开发打下坚实的基础。研究主要选用岩石声发射Kaiser效应法确定该区地应力的分布规律，但由于试验测定的结果并不能反映地层地应力的真实分布情况，故利用测井资料，建立分层地应力解释模型，来求得连续不间断的地应力分布规律。该方法可以快速准确地掌握研究区地应力分布规律。
On the basis of analyzing the parameters of rock elastic wave velocity, Poisson's ratio and density, etc., the law of crustal stress distribution was studied to lay a solid foundation for studying the geological issue and the exploration of oil and gas at the late stage. The Kaiser effect method of rock acoustic emission was used to determine the distribution law of crustal stress in the area; the tested result could not reflect the actual situation of the crustal stress; and therefore logging data were used to establish a stratified model for crustal stress interpretation and obtain a continuous crustal stress distribution law. The method can be used to promptly master the crustal stress distribution law in the area.
