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首页> 外国专利> system and method for generating microsystem events and characterizing properties of a medium with nonlinear acoustic interactions

system and method for generating microsystem events and characterizing properties of a medium with nonlinear acoustic interactions

机译：产生微系统事件并表征具有非线性声相互作用的介质的特性的系统和方法

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A system and method for investigating rock formations outside a borehole are provided. The method includes generating a first compressional acoustic wave at a first frequency by a first acoustic source; and generating a second compressional acoustic wave at a second frequency by a second acoustic source. The first and the second acoustic sources are arranged within a localized area of the borehole. The first and the second acoustic waves intersect in an intersection volume outside the borehole. The method further includes receiving a third shear acoustic wave at a third frequency, the third shear acoustic wave returning to the borehole due to a non-linear mixing process in a non-linear mixing zone within the intersection volume at a receiver arranged in the borehole. The third frequency is equal to a difference between the first frequency and the second frequency.
机译：提供了一种用于调查井眼外部的岩层的系统和方法。该方法包括通过第一声源以第一频率产生第一压缩声波;以及通过第二声源以第二频率产生第二压缩声波。第一和第二声源布置在钻孔的局部区域内。第一和第二声波在井眼外部的相交体积中相交。该方法还包括以第三频率接收第三剪切声波，由于布置在井眼中的接收器处的相交体积内的非线性混合区域中的非线性混合过程，第三剪切声波返回到井眼。 。第三频率等于第一频率和第二频率之间的差。

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