3D STRUCTURE MODELING AT THE FEDERAL INSTITUTE FOR GEOSCIENCES AND NATURAL RESOURCES (BGR), GERMANY Birgit Willscher, Rolf R

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3D STRUCTURE MODELINGAT THEFEDERAL
INSTITUTEFOR GEOSCIENCES AND NATURAL RESOURCES
(BGR),GERMANYBirgit Willscher, Rolf Rüdiger
Ludwig, Bettina Kühn

• THREE-DIMENSIONAL GEOLOGICAL MAPPING (Workshop)
  Portland, Oregon October 17, 2009

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1 BGR and 3D modeling
About BGR

• Geoscientific institute(subordinate agency of
  the Federal Ministry of Economics and Technology,
  BMWi)

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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1 BGR and 3D modeling
About BGR

• Geoscientific institute(subordinate agency of
  the Federal Ministry of Economics and Technology,
  BMWi)
• Advice and information to the federal government
  of Germany and to German industry and research
  institutions

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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1 BGR and 3D modeling
About BGR

• Geoscientific institute(subordinate agency of
  the Federal Ministry of Economics and Technology,
  BMWi)
• Advice and information to the federal government
  of Germany and to German industry and research
  institutions
• Technical cooperation with developing countries,
• international geoscientific cooperation,
• geoscientific research

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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1 BGR and 3D modeling
3D modeling

• Our teamhydrogeological 3D structure modeling

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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1 BGR and 3D modeling
3D modeling

• Our teamhydrogeological 3D structure modeling
• Why 3D2D just a small slice of a complex
  situation
• 3D necessary for spatial consistency

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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1 BGR and 3D modeling
3D modeling

• Our teamhydrogeological 3D structure modeling
• Why 3D2D just a small slice of a complex
  situation
• 3D necessary for spatial consistency

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Discretion of surfaces to grids and discretion of
  geo-bodies to volumetric polygons-
  interpolation algorithms- smoothing

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Discretion of surfaces to grids and discretion of
  geo-bodies to volumetric polygons-
  interpolation algorithms- smoothingfor
  heterogeneous data, irregularly distributed data,
  or data varying in scaletime-saving

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Discretion of surfaces to grids and discretion of
  geo-bodies to volumetric polygons-
  interpolation algorithms- smoothingfor
  heterogeneous data, irregularly distributed data,
  or data varying in scaletime-saving
• penetration

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THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Discretion of surfaces to grids and discretion of
  geo-bodies to volumetric polygons-
  interpolation algorithms- smoothingfor
  heterogeneous data, irregularly distributed data,
  or data varying in scaletime-saving
• penetration

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THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
12
2 Methods
Model construction principles

• Discretion of surfaces to grids and discretion of
  geo-bodies to volumetric polygons-
  interpolation algorithms- smoothingfor
  heterogeneous data, irregularly distributed data,
  or data varying in scaletime-saving
• penetrationsubcrops not being in contact with
  surfaces

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THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Discretion of surfaces to grids and discretion of
  geo-bodies to volumetric polygons-
  interpolation algorithms- smoothingfor
  heterogeneous data, irregularly distributed data,
  or data varying in scaletime-saving
• penetrationsubcrops not being in contact with
  surfaces

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THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN
• Construction of complex features

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN
• Construction of complex features

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
19
2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN
• Construction of complex features

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
20
2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN
• Construction of complex features
• Visualisation of complex hydrogeological
  problems

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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2 Methods
Model construction principles

• Construction of geo-bodies using input data-
  points or lines- TIN
• Construction of complex features
• Visualisation of complex hydrogeological
  problems

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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3 Discussion of TIN-based models
Software

• For construction of complex features-
  line-based, TIN- e.g. openGEO

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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3 Discussion of TIN-based models
Software

• For construction of complex features-
  line-based, TIN- e.g. openGEO complex
  features like lenses (duplication of layers)

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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3 Discussion of TIN-based models
Software

• For construction of complex features-
  line-based, TIN- e.g. openGEO complex
  features like lenses (duplication of
  layers)difficult to learnAutoCAD
  requiredtime-consuming

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THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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3 Discussion of TIN-based models
Software

• For stacked layer models- e.g. GSI3D

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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3 Discussion of TIN-based models
Software

• For stacked layer models- e.g. GSI3D easy
  to learntime-saving

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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3 Discussion of TIN-based models
Software

• For stacked layer models- e.g. GSI3D easy
  to learntime-savingnot applicable for complex
  faulting (ramps, overthrust faults)

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THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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4 Conclusions
Hydrogeological 3D structure modeling

• Application of the appropriate software and
  methodology

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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4 Conclusions
Hydrogeological 3D structure modeling

• Application of the appropriate software and
  methodology
• Purposes of the model resources available for
  the project

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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4 Conclusions
Hydrogeological 3D structure modeling

• Application of the appropriate software and
  methodology
• Purposes of the model resources available for
  the project
• Model construction based on expert defined
  cross-sections or contour mapsgt control during
  the modeling process

THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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THANK YOUFOR YOUR ATTENTION!
THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009
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THANK YOUFOR YOUR ATTENTION!

• 2D gt 3D?
• Software?
• Quality control?

Discussion
THREE-DIMENSIONAL GEOLOGICAL MAPPING
Portland, Oregon October 17, 2009