Holdings: Observations of hydraulic and transport "Skin effects"

Observations of hydraulic and transport "Skin effects": SKB Task Force Workshop Prague 2016

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Bibliographic Details
Corporate Author:	SKB Task Force Workshop Prag (Author)
Format:	Conference Proceeding Book
Language:	English
Published:	Köln ; Garching b. München ; Berlin ; Braunschweig GRS November 2018
Series:	GRS 504
Subjects:	Skineffekt Geotechnik Forschungsbericht Konferenzschrift
Online Access:	Inhaltsverzeichnis Inhaltsverzeichnis
Physical Description:	IV, 77 Seiten Illustrationen, Diagramme 30 cm
ISBN:	9783946607892

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MARC


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adam_text	TABLE OF CONTENT ACKNOWLEDGEMENTS....................................................................................................... I ABSTRACT...........................................................................................................................II 1 INTRODUCTION......................................................................................................... 1 1.1 THE GWFTS TASK FORCE....................................................................................... 1 1.2 BACKGROUND........................................................................................................... 2 1.2.1 EARLY WORK ON THE SKIN EFFECT IN WELLBORES ............................................................. 2 1.2.2 SKIN EFFECT IN DEEP MINES IN CRYSTALLINE ROCK..........................................................4 1.3 REPORT STRUCTURE.....................................................................................................4 2 FLOW SKIN PROCESSES...........................................................................................7 2.1 OBSERVATIONS......................................................................................................... 7 2.1.1 BOREHOLE SCALE...................................................................................................... 7 2.1.2 TUNNEL SCALE....................................................................................................... 11 2.1.3 REPOSITORY SCALE................................................................................................. 19 2.2 POTENTIAL PROCESSES AND FEATURES........................................................................ 20 2.2.1 MECHANICAL FRACTURE CLOSURE................................................................................20 2.2.2 DEGASSING........................................................................................................... 22 2.2.3 TURBULENT FLOW IN CHANNELS..................................................................................22 2.2.4 CLOGGING.............................................................................................................. 22 2.2.5 SCALE DEPENDENCE AND CONNECTIVITY ................................................................... 23 2.2.6 PROCESS AND FEATURE INTERACTIONS ........................................................................ 23 3 TRANSPORT SKIN OBSERVATIONS............................................................................25 3.1 OBSERVATIONS........................................................................................................25 3.1.1 OBSERVATIONS IN THE LABORATORY ........................................................................... 27 3.1.2 OBSERVATIONS IN THE FIELD......................................................................................31 3.2 POTENTIAL PROCESSES AND FEATURES........................................................................36 3.2.1 POROSITY DISTRIBUTION.............................................................................................37 3.2.2 INHOMOGENEITY OF THE ROCK...................................................................................37 3.2.3 DEGASSING........................................................................................................... 37 3.2.4 ADVECTION OPPOSING DIFFUSION...............................................................................38 3.2.5 BOREHOLE DISTURBED ZONE.....................................................................................38 3.2.6 ROCK DESATURATION............................................................................................... 38 3.2.7 MECHANICAL STRESS REDISTRIBUTION AFTER EXCAVATION/DRILLING .................................... 38 3.2.8 EXCAVATION INDUCED STRUCTURAL CHANGES...............................................................39 3.2.9 CLOGGING...............................................................................................................41 3.2.10 POST-TEST ARTEFACTS...............................................................................................42 3.3 *SKIN-EFFECT DEPTHS.............................................................................................43 4 CONCLUSIONS AND RECOMMENDATIONS...............................................................45 4.1 SUMMARY.............................................................................................................45 4.1.1 FLOW.....................................................................................................................45 4.1.2 TRANSPORT.............................................................................................................46 4.1.3 RELEVANCE TO REPOSITORY PERFORMANCE..................................................................47 4.1.4 TABULAR SUMMARY OF PROCESSES...........................................................................47 4.2 CONCLUSIONS........................................................................................................ 50 4.2.1 RELEVANCE TO SITE CHARACTERISATION.......................................................................52 4.2.2 RELEVANCE TO PERFORMANCE ASSESSMENT..............................................................52 4.3 RECOMMENDATIONS..............................................................................................52 REFERENCES..................................................................................................................... 55 TABLE OF FIGURES..............................................................................................................64 LIST OF TABLES...................................................................................................................65 APPENDIX A TENTATIVE MODEL FOR DEGASSING AT A BOREHOLE AT AESPOE.....................66 APPENDIX B ADVECTION OPPOSING DIFFUSION.............................................................67 APPENDIX C SIMPLE MODEL OF FRACTURE CONNECTIVITY AND SKIN ............................... 69 APPENDIX D PROCESS CHARACTERISTICS 71
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spelling	SKB Task Force Workshop 2016 Prag Verfasser (DE-588)1180306619 aut Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016 Klaus-Peter Kröhn (editor), Bill Lanyon (editor) Köln ; Garching b. München ; Berlin ; Braunschweig GRS November 2018 IV, 77 Seiten Illustrationen, Diagramme 30 cm txt rdacontent n rdamedia nc rdacarrier GRS 504 Skineffekt (DE-588)4181656-0 gnd rswk-swf Geotechnik (DE-588)4156771-7 gnd rswk-swf (DE-588)4155043-2 Forschungsbericht gnd-content (DE-588)1071861417 Konferenzschrift gnd-content Skineffekt (DE-588)4181656-0 s Geotechnik (DE-588)4156771-7 s DE-604 GRS 504 (DE-604)BV008889593 504 B:DE-101 application/pdf http://d-nb.info/1177086395/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030920659&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis
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title	Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016
title_auth	Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016
title_exact_search	Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016
title_full	Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016 Klaus-Peter Kröhn (editor), Bill Lanyon (editor)
title_fullStr	Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016 Klaus-Peter Kröhn (editor), Bill Lanyon (editor)
title_full_unstemmed	Observations of hydraulic and transport "Skin effects" SKB Task Force Workshop Prague 2016 Klaus-Peter Kröhn (editor), Bill Lanyon (editor)
title_short	Observations of hydraulic and transport "Skin effects"
title_sort	observations of hydraulic and transport skin effects skb task force workshop prague 2016
title_sub	SKB Task Force Workshop Prague 2016
topic	Skineffekt (DE-588)4181656-0 gnd Geotechnik (DE-588)4156771-7 gnd
topic_facet	Skineffekt Geotechnik Forschungsbericht Konferenzschrift
url	http://d-nb.info/1177086395/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030920659&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
volume_link	(DE-604)BV008889593
work_keys_str_mv	AT skbtaskforceworkshopprag observationsofhydraulicandtransportskineffectsskbtaskforceworkshopprague2016

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