气候变化领域集成服务门户(CCPortal): Effective stress constraints on vertical flow in fault zones: Learnings from natural CO2 reservoirs

CCPortal

DOI	10.1306/12181817393
	Effective stress constraints on vertical flow in fault zones: Learnings from natural CO2 reservoirs
	Naruk S.J.; Solum J.G.; Brandenburg J.P.; Origo P.; Wolf D.E.
发表日期	2019
ISSN	0149-1423
卷号	103 期号:8
英文摘要	Some fault zones leak vertically to the ground surface or seafloor, whereas most others remain naturally sealed. Understanding the factors that cause this leakage is essential for predicting and preventing such leakage for both conventional reservoir development and subsurface CO2 storage. This study, a comparison of leaking and nonleaking natural CO2 gas accumulations, provides such constraints. We compare and contrast trap configurations, fluid pressures, and stress states for several natural CO2 accumulations from the Colorado Plateau. Extensive surface geologic data are integrated with subsurface data from a large suite of groundwater and hydrocarbon wells. Leakage of CO2 is documented by geochemical surveys and the occurrence of extensive travertine deposits. The leakage occurs exclusively in fault fracture damage zones where the total fluid pressure reduces the minimum horizontal effective stress to approximately zero. These results are consistent with natural and accidentally induced fault seeps from some deep-water hydrocarbon reservoirs. These criteria can be used to evaluate the potential for fault zones to provide vertical leakage pathways and loss of fluid containment. Copyright © 2019. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Digital storage; Geochemical surveys; Groundwater; Hydrocarbons; Colorado Plateau; Effective stress; Fluid pressures; Ground surfaces; Hydrocarbon reservoir; Reservoir development; Subsurface data; Vertical leakage; Carbon dioxide; carbon dioxide; deep water; effective stress; fault zone; fluid pressure; groundwater; hydrocarbon reservoir; leakage; vertical profile; Colorado Plateau; United States
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/125061
作者单位	Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, United States; Shell International E and P, Inc., Houston, TX, United States; Haley and Aldrich, Inc., Oakland, CA, United States; BP Exploration, Houston, TX, United States; Estes Park Fire Department, Estes Park, CO, United States
推荐引用方式 GB/T 7714	Naruk S.J.,Solum J.G.,Brandenburg J.P.,et al. Effective stress constraints on vertical flow in fault zones: Learnings from natural CO2 reservoirs[J],2019,103(8).
APA	Naruk S.J.,Solum J.G.,Brandenburg J.P.,Origo P.,&Wolf D.E..(2019).Effective stress constraints on vertical flow in fault zones: Learnings from natural CO2 reservoirs.AAPG Bulletin,103(8).
MLA	Naruk S.J.,et al."Effective stress constraints on vertical flow in fault zones: Learnings from natural CO2 reservoirs".AAPG Bulletin 103.8(2019).