气候变化领域集成服务门户(CCPortal): Permeability Enhancement From a Hydraulic Stimulation Imaged With Ground Penetrating Radar

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DOI	10.1029/2020GL088783
	Permeability Enhancement From a Hydraulic Stimulation Imaged With Ground Penetrating Radar
	Shakas A.; Maurer H.; Giertzuch P.-L.; Hertrich M.; Giardini D.; Serbeto F.; Meier P.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	We present evidence of permeability enhancement from hydraulic stimulation experiments in fractured crystalline rock. A total of 9.49 m3 was injected in two fractured intervals of a 300 m long borehole. Repeated Ground Penetrating Radar (GPR) measurements in the same borehole were carried out prior to and following the stimulation. The initial measurements revealed fractures in the vicinity of the borehole that could be traced up to distances of 50 m away. The data measured post-stimulation were used in a difference-imaging approach to illuminate changes in the GPR reflections caused by the stimulations. The changes delineate the enhancement of a large and complex fracture network. These changes likely correspond to changes in local aperture, thus permeability. Our results indicate that borehole GPR yields unique information on subtle changes in hydraulic properties within a relatively large volume and provides a new perspective on the characterization and monitoring of deep geothermal reservoirs. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Boreholes; Fracture; Geological surveys; Geophysical prospecting; Geothermal fields; Image enhancement; Radar imaging; Radar measurement; Difference imaging; Fracture network; Geothermal reservoir; Ground Penetrating Radar; Ground penetrating radar (GPR); Hydraulic properties; Hydraulic stimulations; Permeability enhancement; Ground penetrating radar systems; borehole; electrical method; fracture network; geothermal energy; ground penetrating radar; hydraulic conductivity; image analysis; permeability
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169825
作者单位	Department of Earth Sciences, ETH Zurich, Zurich, Switzerland; Geo-Energie Suisse AG, Zurich, Switzerland
推荐引用方式 GB/T 7714	Shakas A.,Maurer H.,Giertzuch P.-L.,et al. Permeability Enhancement From a Hydraulic Stimulation Imaged With Ground Penetrating Radar[J],2020,47(17).
APA	Shakas A..,Maurer H..,Giertzuch P.-L..,Hertrich M..,Giardini D..,...&Meier P..(2020).Permeability Enhancement From a Hydraulic Stimulation Imaged With Ground Penetrating Radar.Geophysical Research Letters,47(17).
MLA	Shakas A.,et al."Permeability Enhancement From a Hydraulic Stimulation Imaged With Ground Penetrating Radar".Geophysical Research Letters 47.17(2020).