Numerical Modeling of Geomechanical Processes Related to CO{sub 2} Injection within Generic Reservoirs

doi:10.2172/1097084

GSTDTAP > 地球科学

DOI	10.2172/1097084
报告编号	None
来源ID	OSTI ID: 1097084
	Numerical Modeling of Geomechanical Processes Related to CO{sub 2} Injection within Generic Reservoirs
	Eckert, Andreas
	2013-05-31
出版年	2013
语种	英语
国家	美国
领域	地球科学
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.
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/6274
专题	地球科学
推荐引用方式 GB/T 7714	Eckert, Andreas. Numerical Modeling of Geomechanical Processes Related to CO{sub 2} Injection within Generic Reservoirs,2013.