Multiscale geomechanical and geochemical studies of unconventional shale reservoirs
Abstract/Contents
- Abstract
- With the advancement of horizontal drilling and hydraulic fracturing, unconventional shale reservoirs are now capable of being drilled faster and produced economically at commercial rates. Although these shale resources are massive in size and globally abundant, they are still being produced with low recovery factors (less than 5\% for shale oil and less than 20\% for shale gas). This low recovery could be attributed to an incomplete understanding of the complex intrinsic properties of shale rocks. In this thesis, I focused on investigating the main factors that control pore volume (porosity) and pore-size distribution of different shale reservoirs and how this variability in pore space can be related to measured permeability and well production. I present in this thesis a laboratory workflow highlighting a series of fluid penetration and permeability measurements performed on multiple shale reservoir samples. My approach looks at characterizing and imaging the nanoscale porosity first to better understand the pore space distribution and building upwards in scale through the permeability measurements. Next, I apply my previous findings towards a specific geochemical application setting involving the hydraulic fracturing fluid composition and its effect on the shale permeability. Lastly, understanding how porosity is distributed across the shale matrix and altered during hydraulic fracturing and throughout production is crucial to identify beforehand as it will have a potential impact on enhancing the recovery factors of producing shales.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2019; ©2019 |
| Publication date | 2019; 2019 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Alalli, Abdulgader Abdullah |
|---|---|
| Degree supervisor | Zoback, Mark D |
| Thesis advisor | Zoback, Mark D |
| Thesis advisor | Beroza, Gregory C. (Gregory Christian) |
| Thesis advisor | Kovscek, Anthony R. (Anthony Robert) |
| Degree committee member | Beroza, Gregory C. (Gregory Christian) |
| Degree committee member | Kovscek, Anthony R. (Anthony Robert) |
| Associated with | Stanford University, Department of Geophysics. |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Abdulgader A. Alalli. |
|---|---|
| Note | Submitted to the Department of Geophysics. |
| Thesis | Thesis Ph.D. Stanford University 2019. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2019 by Abdulgader Abdullah Alalli
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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