Sand production simulation under true-triaxial stress conditions
Laboratory sanding experiments were carried out under true-triaxial stress conditions. The objective was to investigate the effect of state of stresses and fluid flow on the mechanism of sanding, and the development of the failure zone around the borehole. The experiments were conducted on 100×100×1...
| Main Authors: | , , |
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| Format: | Journal Article |
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Pergamon
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/40527 |
| _version_ | 1848755895209558016 |
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| author | Younessi, Ahmadreza Rasouli, Vamegh Wu, Bailin |
| author_facet | Younessi, Ahmadreza Rasouli, Vamegh Wu, Bailin |
| author_sort | Younessi, Ahmadreza |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Laboratory sanding experiments were carried out under true-triaxial stress conditions. The objective was to investigate the effect of state of stresses and fluid flow on the mechanism of sanding, and the development of the failure zone around the borehole. The experiments were conducted on 100×100×100 mm3 cubic samples of synthetic sandstones. The samples were prepared based on an established procedure developed to produce weakly consolidated sandstone samples with identical physico-mechanical properties. The properties of the synthetic sandstone samples were determined by conducting a series of standard rock mechanics tests on cylindrical plugs. Using a true-triaxial stress cell (TTSC), cubic samples were subjected to true-triaxial stresses and radial fluid flow from the outer boundaries into the borehole. The maximum and intermediate principal stresses were applied laterally in both cases while the effect of changing the lateral stresses on the development of the failure zone around borehole was monitored. It was observed that the geometry (i.e. width and depth) of the failure zone developed around the borehole is a function of the lateral stresses ratio (i.e. lateral stress anisotropy). The experiments were also simulated numerically using ABAQUS in order to validate and interpret the results from the experiments. A good agreement was obtained between the results of both methods, which confirms the importance of lateral stress anisotropy on the evolution of sanding. The observations and results of these experiments and numerical simulations will be presented and discussed. |
| first_indexed | 2025-11-14T09:03:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-40527 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:03:34Z |
| publishDate | 2013 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-405272019-02-19T05:35:06Z Sand production simulation under true-triaxial stress conditions Younessi, Ahmadreza Rasouli, Vamegh Wu, Bailin Borehole failure Sand production True-triaxial stress Laboratory experiment Numerical modelling Laboratory sanding experiments were carried out under true-triaxial stress conditions. The objective was to investigate the effect of state of stresses and fluid flow on the mechanism of sanding, and the development of the failure zone around the borehole. The experiments were conducted on 100×100×100 mm3 cubic samples of synthetic sandstones. The samples were prepared based on an established procedure developed to produce weakly consolidated sandstone samples with identical physico-mechanical properties. The properties of the synthetic sandstone samples were determined by conducting a series of standard rock mechanics tests on cylindrical plugs. Using a true-triaxial stress cell (TTSC), cubic samples were subjected to true-triaxial stresses and radial fluid flow from the outer boundaries into the borehole. The maximum and intermediate principal stresses were applied laterally in both cases while the effect of changing the lateral stresses on the development of the failure zone around borehole was monitored. It was observed that the geometry (i.e. width and depth) of the failure zone developed around the borehole is a function of the lateral stresses ratio (i.e. lateral stress anisotropy). The experiments were also simulated numerically using ABAQUS in order to validate and interpret the results from the experiments. A good agreement was obtained between the results of both methods, which confirms the importance of lateral stress anisotropy on the evolution of sanding. The observations and results of these experiments and numerical simulations will be presented and discussed. 2013 Journal Article http://hdl.handle.net/20.500.11937/40527 10.1016/j.ijrmms.2013.03.001 Pergamon fulltext |
| spellingShingle | Borehole failure Sand production True-triaxial stress Laboratory experiment Numerical modelling Younessi, Ahmadreza Rasouli, Vamegh Wu, Bailin Sand production simulation under true-triaxial stress conditions |
| title | Sand production simulation under true-triaxial stress conditions |
| title_full | Sand production simulation under true-triaxial stress conditions |
| title_fullStr | Sand production simulation under true-triaxial stress conditions |
| title_full_unstemmed | Sand production simulation under true-triaxial stress conditions |
| title_short | Sand production simulation under true-triaxial stress conditions |
| title_sort | sand production simulation under true-triaxial stress conditions |
| topic | Borehole failure Sand production True-triaxial stress Laboratory experiment Numerical modelling |
| url | http://hdl.handle.net/20.500.11937/40527 |