Laboratory study on the effects of carbonates and clay content on viscoplastic deformation of shales at reservoir conditions
Abstract/Contents
- Abstract
- Inelastic time-dependent deformation or viscoplsatic behavior in clay-rich and carbonate-rich reservoir rocks causes wellbore instability in the scale of days, changes the response to hydraulic fracturing stimulation in the scale of years, and it also can change the state of stress in sedimentary basins in the larger time scales of millions of years. The main focus of this thesis is on how the inelastic time-dependent deformation affects hydraulic fracturing operations in unconventional oil and gas reservoirs. Horizontal drilling and hydraulic fracturing developments have made hydrocarbon production from very low-permeable unconventional reservoirs economically feasible. Hydraulically stimulated fractures propagate perpendicular to the direction of least principal stress, while the state of stress determines the growth of these fractures. Viscoplastic rock formations are more likely to have higher values of the least principal stress (or frac gradient), which makes them potential barriers to vertical hydraulic fracture propagation. In this thesis, I have studied viscoplasticity of rock samples from different formations using conventional experimental methods at various reservoir conditions. Additionally, I have used multi-scale imaging techniques to investigate the sources of inelastic deformations in shale rocks.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2017 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Rassouli, Fatemeh Sadat |
|---|---|
| Associated with | Stanford University, Department of Geophysics. |
| Primary advisor | Zoback, Mark D |
| Thesis advisor | Zoback, Mark D |
| Thesis advisor | Kovscek, Anthony R. (Anthony Robert) |
| Thesis advisor | Mavko, Gary, 1949- |
| Thesis advisor | Sleep, Norman H |
| Advisor | Kovscek, Anthony R. (Anthony Robert) |
| Advisor | Mavko, Gary, 1949- |
| Advisor | Sleep, Norman H |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Fatemeh Sadat Rassouli. |
|---|---|
| Note | Submitted to the Department of Geophysics. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2017. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2017 by Fatemeh Sadat Rassouli
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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