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- Title
Study of Seismic P Wave in Mesoscale Fracture-Induced Arbitrary Anisotropic Media.
- Authors
Xiao, Han; Shang, Xinmin; Wang, Zhentao; Wang, Xiping
- Abstract
Summary: Mesoscale fracture controls the permeability of shale reservoirs, it is one of the main research objectives of natural fractures. The length of the mesoscale fracture is less than 1/4 of the seismic eigen wavelength and greater than 1% of the seismic eigen wavelength, they cannot be identified in actual seismic data and are usually displayed by the azimuthal anisotropy of seismic attributes. In this paper, we propose a calculation process from fracture properties to seismic P-wave velocity and traveltime in anisotropic media induced by multiple sets of arbitrary occurring mesoscale fractures. Based on this process, the variations of the media's Anisotropic (A-) parameters with fracture properties are studied. Furthermore, variation of P-wave NMO elliptical principle axis with the relative fracture density is studied according to the arbitrary anisotropic theory based on A-parameters.
- Subjects
SEISMIC wave studies; ANISOTROPY; SEISMIC anisotropy; SEISMIC wave velocity; SPECIFIC gravity
- Publication
Journal of Earth Science, 2024, Vol 35, Issue 2, p717
- ISSN
1674-487X
- Publication type
Article
- DOI
10.1007/s12583-024-1967-y