Anisotropic Inhomogeneous Poroelastic Inclusions: With Application to Underground Energy-Related Problems
| Autor: | Houman Bedayat, Arash Dahi Taleghani |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
010504 meteorology & atmospheric sciences Renewable Energy Sustainability and the Environment Mechanical Engineering Poromechanics Stress–strain curve Energy Engineering and Power Technology Mechanics 010502 geochemistry & geophysics 01 natural sciences Stress change Stress (mechanics) Pore water pressure Fuel Technology Geochemistry and Petrology Geotechnical engineering Anisotropy Material properties Energy (signal processing) 0105 earth and related environmental sciences |
| Zdroj: | Journal of Energy Resources Technology. 138 |
| ISSN: | 1528-8994 0195-0738 |
| DOI: | 10.1115/1.4032449 |
| Popis: | Understanding the stress change in a reservoir generated by fluid production/injection is important for field development purposes. In this paper, we provide the Eshelby solution for stress and strain distribution inside and outside of an anisotropic poroelastic inhomogeneity due to pore pressure changes inside the inhomogeneity. The term anisotropic inhomogeneity refers to an inhomogeneity with anisotropic poroelastic constants. Some graphical results for strain and stress ratios for different material properties and geometries are presented as well. Anisotropy in elastic properties has been studied extensively in the last century; however, anisotropy in poroelastic properties, despite its potential significant impact in different engineering problems, has not been explored thoroughly. The results show how neglecting the effect of anisotropic poroelastic properties may result in large differences in calculated stresses. Due to the authors' primary interest in geomechanical problems, the discussions and examples are chosen for applications involving fluid withdrawal/injection into hydrocarbon reservoirs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|