一种岩石裂缝探测方法及系统

本发明提供了一种岩石裂缝探测方法及系统，通过计算与探测裂缝岩石具有相同背景介质的岩石在不含裂缝状态下的弹性模量；根据预设的岩石裂缝初始参数和岩石在不含裂缝状态下的弹性模量计算裂缝岩石波速；将计算得到的裂缝岩石波速计算值与测量得到的裂缝岩石波速测量值相比较，判断计算值与测量值是否相吻合；若是，则输出裂缝参数；否则利用最优化算法产生一组新的裂缝参数，并返回重新进行计算。本发明所公开的方法及系统，由于考虑了各向异性背景介质和椭圆缝对岩石弹性性质的影响，因此可较好的用于具横向各向同性背景介质的岩石裂缝的预测。

The invention provides a rock crack detection method and system. An elastic modulus of a rock having the same background medium as a detected crack rock in non-crack state is calculated; a wave speedof the crack rock is calculated based on a preset rock crack initial parameter and the elastic modulus of the rock in non-crack state; the calculated wave speed calculation value of the crack rock iscompared with a crack rock wave speed measuring value obtained by measurement to determine whether the calculation value matches the measuring value; if so, a crack parameter is outputted; and if not,one group of new crack parameters is generated based on an optimized algorithm and then calculation is carried out again. According to the disclosed method and system, with consideration of the influence on the elastic property of the rock by the anisotropic background medium and elliptical seam, the method and system can be applied to prediction of the crack of the rock having the transversely isotropic background medium.