气候变化领域集成服务门户(CCPortal): A new perspective on the hydraulics of oilfield wastewater disposal: How PTX conditions affect fluid pressure transients that cause earthquakes

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DOI	10.1039/d0ee01864c
	A new perspective on the hydraulics of oilfield wastewater disposal: How PTX conditions affect fluid pressure transients that cause earthquakes
	Pollyea R.M.; Konzen G.L.; Chambers C.R.; Pritchard J.A.; Wu H.; Jayne R.S.
发表日期	2020
ISSN	1754-5692
起始页码	3014
结束页码	3031
卷号	13 期号:9
英文摘要	Pumping oilfield wastewater into deep injection wells causes earthquakes by effective stress change and solid elastic stressing. These processes result from fluid pressure changes in the seismogenic basement, so it is generally accepted that pressure diffusion governs spatiotemporal patterns of induced earthquake sequences. However, new evidence suggests that fluid density contrasts may also drive local-scale (near-well) pressure transients to greater depths than pressure diffusion and over much longer timescales. As a consequence, the pressure, temperature, and composition (PTX) conditions of wastewater and deep crustal (basement) fluids may be fundamental to understanding and managing injection-induced seismicity. This study develops a mechanistic framework that integrates PTX-dependent fluid properties into the generally accepted conceptual model of injection-induced seismicity. Nonisothermal variable-density numerical simulation is combined with ensemble simulation methods to isolate the parametric controls on injection-induced fluid pressure transients. Results show that local-scale, density-driven pressure transients are governed by a combination of fracture permeability and PTX-dependent fluid properties, while long-range pressure diffusion is largely governed by fracture permeability. Considering this new conceptual model in the context geochemical data from oil and gas basins in the United States identifies regions that may be susceptible to persistent density-driven pressure transients. This journal is © The Royal Society of Chemistry.
语种	英语
scopus关键词	Buildings; Diffusion in liquids; Digital storage; Earthquakes; Induced Seismicity; Numerical methods; Oil fields; Earthquake sequences; Ensemble simulation; Fracture permeability; Oilfield wastewaters; Parametric control; Pressure diffusion; Pressure transient; Spatiotemporal patterns; Wastewater disposal; earthquake; fluid pressure; hydraulic conductivity; oil field; waste disposal; wastewater treatment
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162720
作者单位	Department of Geosciences, Virginia Polytechnic Institute, State University, Blacksburg, VA, United States
推荐引用方式 GB/T 7714	Pollyea R.M.,Konzen G.L.,Chambers C.R.,et al. A new perspective on the hydraulics of oilfield wastewater disposal: How PTX conditions affect fluid pressure transients that cause earthquakes[J],2020,13(9).
APA	Pollyea R.M.,Konzen G.L.,Chambers C.R.,Pritchard J.A.,Wu H.,&Jayne R.S..(2020).A new perspective on the hydraulics of oilfield wastewater disposal: How PTX conditions affect fluid pressure transients that cause earthquakes.Energy and Environmental Science,13(9).
MLA	Pollyea R.M.,et al."A new perspective on the hydraulics of oilfield wastewater disposal: How PTX conditions affect fluid pressure transients that cause earthquakes".Energy and Environmental Science 13.9(2020).