| DOI: | 10.2172/1097084
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| 报告号: | None
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| 报告题名: | Numerical Modeling of Geomechanical Processes Related to CO{sub 2} Injection within Generic Reservoirs |
| 作者: | Eckert, Andreas
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| 出版年: | 2013
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| 发表日期: | 2013-05-31
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| 国家: | 美国
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| 语种: | 英语
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| 英文摘要: | In this project generic anticline structures have been used for numerical modeling analyses to study the influence of geometrical parameters, fluid flow boundary conditions, in situ stress regime and inter-bedding friction coefficient on geomechanical risks such as fracture reactivation and fracture generation. The resulting stress states for these structures are also used to determine safe drilling directions and a methodology for wellbore trajection optimization is developed that is applicable for non-Andersonian stress states. The results of the fluid flow simulation show that the type of fluid flow boundary condition is of utmost importance and has significant impact on all injection related parameters. It is recommended that further research is conducted to establish a method to quantify the fluid flow boundary conditions for injection applications. The results of the geomechanical simulation show that in situ stress regime is a crucial, if not the most important, factor determining geomechanical risks. For extension and strike slip stress regimes anticline structures should be favored over horizontally layered basin as they feature higher ΔP{sub c} magnitudes. If sedimentary basins are tectonically relaxed and their state of stress is characterized by the uni-axial strain model the basin is in exact frictional equilibrium and fluids should not be injected. The results also show that low inter bedding friction coefficients effectively decouple layers resulting in lower ΔP{sub c} magnitudes, especially for the compressional stress regime. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1097084
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41128
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1097084.pdf（5382KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Eckert, Andreas. Numerical Modeling of Geomechanical Processes Related to CO{sub 2} Injection within Generic Reservoirs. 2013-01-01.
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