For clean sandstone, the acoustic dispersion of compressional wave exists obviously when its porosity is more than 28%.
对纯砂岩,当孔隙度大于28%时存在明显纵波声频散。
Acoustic wave is the important basic information to get porosity of formation and develop research about mechanics character of rock.
声波是获取地层孔隙度,开展岩石机械力学性质研究的重要基础资料。
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