diff --git a/ApplicationCode/ModelVisualization/RivWellPathPartMgr.cpp b/ApplicationCode/ModelVisualization/RivWellPathPartMgr.cpp
index 48b3932c7f..55cdb1cb13 100644
--- a/ApplicationCode/ModelVisualization/RivWellPathPartMgr.cpp
+++ b/ApplicationCode/ModelVisualization/RivWellPathPartMgr.cpp
@@ -399,6 +399,8 @@ void RivWellPathPartMgr::appendStaticGeometryPartsToModel(cvf::ModelBasicList* m
 //--------------------------------------------------------------------------------------------------
 void RivWellPathPartMgr::appendDynamicGeometryPartsToModel(RimView* view, cvf::ModelBasicList* model)
 {
+    CVF_ASSERT(view && model);
+
     RimWellPathCollection* wellPathCollection = this->wellPathCollection();
     if (!wellPathCollection) return;
 
@@ -410,32 +412,25 @@ void RivWellPathPartMgr::appendDynamicGeometryPartsToModel(RimView* view, cvf::M
     if (wellPathCollection->wellPathVisibility() != RimWellPathCollection::FORCE_ALL_ON && m_rimWellPath->showWellPath() == false)
         return;
 
-    cvf::ref<caf::DisplayCoordTransform> displayCoordTransform = view->displayCoordTransform();
-    double characteristicCellSize = 10.0;
     QDateTime currentDateTime;
+    double characteristicCellSize = 10.0;
 
-    RimEclipseView* eclipseView = dynamic_cast<RimEclipseView*>(view);
-    if (eclipseView)
+    RimCase* rimCase = nullptr;
+    view->firstAncestorOrThisOfType(rimCase);
+    if (rimCase)
     {
-        RigMainGrid* mainGrid = eclipseView->mainGrid();
-        if (mainGrid)
-        {
-            characteristicCellSize = mainGrid->characteristicIJCellSize();
-        }
+        std::vector<QDateTime> timeStepDates = rimCase->timeStepDates();
 
-        RimEclipseCase* eclipseCase = nullptr;
-        view->firstAncestorOrThisOfType(eclipseCase);
-        if (eclipseCase)
+        if (view->currentTimeStep() < timeStepDates.size())
         {
-            std::vector<QDateTime> timeStepDates = eclipseCase->timeStepDates();
-
-            if (view->currentTimeStep() < timeStepDates.size())
-            {
-                currentDateTime = timeStepDates[view->currentTimeStep()];
-            }
+            currentDateTime = timeStepDates[view->currentTimeStep()];
         }
+    
+        characteristicCellSize = rimCase->characteristicCellSize();
     }
 
+    cvf::ref<caf::DisplayCoordTransform> displayCoordTransform = view->displayCoordTransform();
+
     appendPerforationsToModel(currentDateTime, model, displayCoordTransform.p(), characteristicCellSize);
 }
 
diff --git a/ApplicationCode/ProjectDataModel/RimCase.h b/ApplicationCode/ProjectDataModel/RimCase.h
index a5b1788172..cb274de8f0 100644
--- a/ApplicationCode/ProjectDataModel/RimCase.h
+++ b/ApplicationCode/ProjectDataModel/RimCase.h
@@ -62,6 +62,8 @@ public:
 
     virtual void                                updateFormationNamesData() = 0;
 
+    virtual double                              characteristicCellSize() const = 0;
+
 protected:
     virtual QList<caf::PdmOptionItemInfo>       calculateValueOptions(const caf::PdmFieldHandle* fieldNeedingOptions, bool * useOptionsOnly) override;
 private:
diff --git a/ApplicationCode/ProjectDataModel/RimEclipseCase.cpp b/ApplicationCode/ProjectDataModel/RimEclipseCase.cpp
index 7f102c395d..8b85a6d12d 100644
--- a/ApplicationCode/ProjectDataModel/RimEclipseCase.cpp
+++ b/ApplicationCode/ProjectDataModel/RimEclipseCase.cpp
@@ -679,6 +679,20 @@ void RimEclipseCase::reloadDataAndUpdate()
     }
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+double RimEclipseCase::characteristicCellSize() const
+{
+    const RigEclipseCaseData* rigEclipseCase = eclipseCaseData();
+    if (rigEclipseCase)
+    {
+        return rigEclipseCase->mainGrid()->characteristicIJCellSize();
+    }
+
+    return 10.0;
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ProjectDataModel/RimEclipseCase.h b/ApplicationCode/ProjectDataModel/RimEclipseCase.h
index 77672d95d8..8f04cdde9c 100644
--- a/ApplicationCode/ProjectDataModel/RimEclipseCase.h
+++ b/ApplicationCode/ProjectDataModel/RimEclipseCase.h
@@ -100,6 +100,9 @@ public:
     void                                        reloadDataAndUpdate();
     virtual void                                reloadEclipseGridFile() = 0;
 
+
+    virtual double                              characteristicCellSize() const override;
+
 protected:
     virtual void                                initAfterRead();
     virtual void                                fieldChangedByUi( const caf::PdmFieldHandle* changedField, const QVariant& oldValue, const QVariant& newValue );
diff --git a/ApplicationCode/ProjectDataModel/RimGeoMechCase.cpp b/ApplicationCode/ProjectDataModel/RimGeoMechCase.cpp
index 4b97888443..a3d4b7c78c 100644
--- a/ApplicationCode/ProjectDataModel/RimGeoMechCase.cpp
+++ b/ApplicationCode/ProjectDataModel/RimGeoMechCase.cpp
@@ -289,6 +289,21 @@ cvf::BoundingBox RimGeoMechCase::allCellsBoundingBox() const
     }
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+double RimGeoMechCase::characteristicCellSize() const
+{
+    if (geoMechData() && geoMechData()->femParts())
+    {
+        double cellSize = geoMechData()->femParts()->characteristicElementSize();
+
+        return cellSize;
+    }
+    
+    return 10.0;
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationCode/ProjectDataModel/RimGeoMechCase.h b/ApplicationCode/ProjectDataModel/RimGeoMechCase.h
index 1e2c70de54..8af598bd1e 100644
--- a/ApplicationCode/ProjectDataModel/RimGeoMechCase.h
+++ b/ApplicationCode/ProjectDataModel/RimGeoMechCase.h
@@ -65,9 +65,12 @@ public:
     virtual cvf::BoundingBox                activeCellsBoundingBox() const;
     virtual cvf::BoundingBox                allCellsBoundingBox() const;
 
+    virtual double                          characteristicCellSize() const override;
+
     // Fields:                                        
     caf::PdmChildArrayField<RimGeoMechView*>  geoMechViews;
 
+
 private:
     static std::vector<QDateTime>           dateTimeVectorFromTimeStepStrings(const QStringList& timeStepStrings);