Zhuang Chunxi, Xu Song, Li Huanran, Su Yuanda, Tang Xiaoming
School of Geosciences, China University of Petroleum (East China), Qingdao,
J Acoust Soc Am. 2019 Aug;146(2):EL129. doi: 10.1121/1.5120551.
An anisotropic physical model is constructed to evaluate the anisotropy measurement. The model consists of a series of equally spaced thin limestone slab sheets cemented with concrete, resulting in a transversely isotropic medium. For the anisotropy measurement evaluation, the borehole model is tested by a standard multipole acoustic tool. The measurement finds an S-wave anisotropy magnitude about 20% and determines the fast S-wave polarization along the alignment direction of the slab sheets. The results of the work not only validate the borehole measurement technology, but also provide a testing facility for calibrating the measurement acoustic tool.
构建了一个各向异性物理模型来评估各向异性测量。该模型由一系列用混凝土粘结的等间距薄石灰石板组成，形成一个横向各向同性介质。为了评估各向异性测量，使用标准多极声波工具对钻孔模型进行测试。测量发现S波各向异性幅度约为20%，并确定快S波极化沿石板的排列方向。这项工作的结果不仅验证了钻孔测量技术，还为校准测量声波工具提供了一个测试设施。
