Azimuthal shear-wave anisotropy measurement in a borehole: Physical modeling and dipole acoustic verification.
- Resource Type
- Article
- Authors
- Zhuang, Chunxi; Xu, Song; Li, Huanran; Su, Yuanda; Tang, Xiaoming
- Source
- Journal of the Acoustical Society of America. Aug2019, Vol. 146 Issue 2, pEL129-EL134. 6p.
- Subject
- *PHYSICAL measurements
*ACOUSTIC models
*BOREHOLES
*ACOUSTIC measurements
*TESTING laboratories
- Language
- ISSN
- 0001-4966
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. [ABSTRACT FROM AUTHOR]