High-precision tracking of sandstone deformation from micro-CT images
| Main Authors: | Liang, Jiabin, Lebedev, Maxim, Gurevich, Boris, Arns, Christoph, Vialle, Stephanie, Glubokovskikh Stanislav |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2021
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| Online Access: |
https://zenodo.org/record/4706182 |
Daftar Isi:
- The studied sample is a Jurassic sandstone from a gas reservoir located offshore Australia in the Northern Carnarvon Basin. A cylindrical mini-plug (5 mm in diameter, 20 mm in length) is extracted and loaded into a pressure cell (Lebedev et al., 2017), which is made of X-ray transparent polyetheretherketone (PEEK). This pressure cell is then assembled in the 3D X-ray microscope VersaXRM 500 (XRadia-Zeiss). After stress loading and unloading cycles, sample is scanned at 0MPa, 20MPa and 36MPa hydrostatic pressure. The voxel size lengths of three images are set to be exactly the same (1.0042μm) and the image sizes are approximately 20003 voxels. Then, the sample remains under ambient pressure for 21 days, before it is scanned at 0MPa again with the same image size and resolution settings. Lebedev, M., Zhang, Y., Mikhaltsevitch, V., Inglauer, S., & Rahman, T. (2017). Residual trapping of supercritical CO2: direct pore-scale observation using a low cost pressure cell for micro computer tomography. Energy Procedia, 114, 4967-4974. doi:https://doi.org/10.1016/j.egypro.2017.03.1639