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geoscene3d:qc_and_statistics:layermodelqc [2021/07/30 07:46] – [Layer Model QC] rjgeoscene3d:qc_and_statistics:layermodelqc [2021/07/30 10:26] (current) – external edit 127.0.0.1
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-==== Step 1. Lithology content in boreholes ====+==== Step 1. Prepare a project (optional) ====
  
-1. See [[:geoscene3d:building_a_layered_model:modelsetup-stepbystep|Setting Up Data for Modelling]]+1. See [[:geoscene3d:building_a_layered_model:modelsetup-stepbystep|Setting Up Data for Modelling]] and  [[:geoscene3d:building_a_layered_model:editingxyzpoints-inprofilewindow|Edit XYZ Points - In Profile Window]] how to do the following preparation, to be able to use the QC theme:
  
-  * Adding point layers +  * Adding interpretation points 
-  * Interpolation of XYZ points (2D grid)+  * Interpolation of XYZ points to surfaces (2D grid)
   * Creation of solid layers + definition of bottom/top layers   * Creation of solid layers + definition of bottom/top layers
  
 {{:geoscene3d:qc_and_statistics:profile_wells.png}} {{:geoscene3d:qc_and_statistics:profile_wells.png}}
  
-  * After adding and interpolating XYZ points to XYZ layers (2D grid) and creating solid layers the profile looks like the picture below.+  * After adding and interpolating XYZ points to surfaces and creating solid layers the profile looks like the picture below.
  
 {{:geoscene3d:qc_and_statistics:layerprofile.png?nolink&}} {{:geoscene3d:qc_and_statistics:layerprofile.png?nolink&}}
  
-2. See [[:geoscene3d:building_a_layered_model:editingxyzpoints-inprofilewindow|Edit XYZ Points - In Profile Window]]+==== Step 2a. Borehole lithology and layer model ====
  
-  * Edit point layers +  * This GeoScene3D tool is used for checking whether a lithology from the borehole data is consistent with the layers. Here clay is chosen.
-  * Interpolation of layer points (edit 2D grid) +
-  * Moving layer points+
  
----- +1. QC and Statistics menu –> "Layer Model QC" –> next –> "Calculation Mode: Wells" –> clay.
- +
-  * This GeoScene3D tool is used for checking whether a lithology from the borehole data is corresponding to the interpolated XYZ layers. Here clay is chosen. +
- +
-3. QC and Statistics menu –> "Layer Model QC" –> next –> "Calculation Mode: Wells" –> clay.+
  
 {{:geoscene3d:qc_and_statistics:calculationmode_clay.png?nolink&}} {{:geoscene3d:qc_and_statistics:calculationmode_clay.png?nolink&}}
  
-4. Define the constraints for the bottom and top of the surrounding layers –> next –> finish.+2. Define the constraints for the bottom and top of the surrounding layers –> next –> finish.
  
 {{:geoscene3d:qc_and_statistics:clay_constraints.png}} {{:geoscene3d:qc_and_statistics:clay_constraints.png}}
  
-5. Activate the top plot in the profile.+3. Activate the top plot in the profile.
  
   * The top plot y-axis marks the clay thickness (total overlap) while the color of the points demonstrate the clay content percentage in the constrained interval (percent overlap).   * The top plot y-axis marks the clay thickness (total overlap) while the color of the points demonstrate the clay content percentage in the constrained interval (percent overlap).
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 {{:geoscene3d:qc_and_statistics:topplot_errorclay.png}} {{:geoscene3d:qc_and_statistics:topplot_errorclay.png}}
  
-==== Step 2. 1D modeller ====+==== Step 2b. 1D geophysical models and layer model ====
  
   * The layer model QC can also be applied to 1D data e.g. for resisitivity.   * The layer model QC can also be applied to 1D data e.g. for resisitivity.
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 {{:geoscene3d:qc_and_statistics:res_profil_1.png?nolink&}} {{:geoscene3d:qc_and_statistics:res_profil_1.png?nolink&}}
  
-1. Repeat step 1.3. and click "Calculation Mode: 1D models" –> define the resisitivity interval –> next.+1. Repeat step 2a.1. and click "Calculation Mode: 1D models" –> define the resisitivity interval –> next.
  
 {{:geoscene3d:qc_and_statistics:res_calculationmode_1.png?nolink&}} {{:geoscene3d:qc_and_statistics:res_calculationmode_1.png?nolink&}}
  
-2. Repeat step 1.4. for constraint definition.+2. Repeat step 2a.2. for constraint definition.
  
 {{:geoscene3d:qc_and_statistics:res_constraints_1.png}} {{:geoscene3d:qc_and_statistics:res_constraints_1.png}}
  
-3. Repeat step 1.5. and fit the top plot to the data.+3. Repeat step 3a.3. and fit the top plot to the data.
  
 {{:geoscene3d:qc_and_statistics:res_profilzoom_1.png?nolink&}} {{:geoscene3d:qc_and_statistics:res_profilzoom_1.png?nolink&}}
  
-==== Step 3. Result ==== 
  
   * In the top plot for the clay layer the dominant colors are orange and yellow. The color translation correspond to the layer have 20-30% and 50-60% of the selected resistivity values in the interval [30;50].   * In the top plot for the clay layer the dominant colors are orange and yellow. The color translation correspond to the layer have 20-30% and 50-60% of the selected resistivity values in the interval [30;50].

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