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- Title
四川盆地涪陵地区龙马溪组页岩横向各向 同性地应力测井评价方法.
- Authors
邹贤军; 陈亚琳
- Abstract
Shale exhibits anisotropy because of preferred alignment of clay particles and tabular bedding. It is not appropriate to compute stress with isotropic model. We introduce a stress logging evaluation method for Longmaxi Formation shale based on transversely isotropic model by analyzing the relation between vertical effective stress and shear wave velocity to predict formation pressure, building rock physics model to compute Biot coefficient and using velocity-regression method to calculate stiffness coefficients. The application results indicate that transversely isotropic model reflects the actual formation more accurately.
- Publication
Natural Gas Geoscience, 2018, Vol 29, Issue 12, p1775
- ISSN
1672-1926
- Publication type
Article
- DOI
10.11764/j.issn.1672-1926.2018.10.017