#14878: Guard against deleted formations collection and missing geometry

ApplicationLibCode/ProjectDataModel/WellLog/WellLogTrack/RimWellLogTrack.cpp

@@ -2618,9 +2618,14 @@ void RimWellLogTrack::updateFormationNamesOnPlot()
         auto formationLevel = static_cast<RigWellPathFormations::FormationLevel>( m_formationSettings->formationLevel() );
 
         double rkbDiff = 0.0;
-        if ( plot->depthType() == RiaDefines::DepthType::TRUE_VERTICAL_DEPTH_RKB && m_formationSettings->wellPathForSourceWellPath() )
+        if ( plot->depthType() == RiaDefines::DepthType::TRUE_VERTICAL_DEPTH_RKB )
         {
-            rkbDiff = m_formationSettings->wellPathForSourceWellPath()->wellPathGeometry()->rkbDiff();
+            // Picks-only wells have no trajectory
+            auto sourceWellPath = m_formationSettings->wellPathForSourceWellPath();
+            if ( sourceWellPath && sourceWellPath->wellPathGeometry() )
+            {
+                rkbDiff = sourceWellPath->wellPathGeometry()->rkbDiff();
+            }
         }
 
         // Fluid contacts are single-depth picks (no zone thickness); keep these as simple pick lines.

ApplicationLibCode/ProjectDataModel/WellPath/RimWellPath.cpp

@@ -582,6 +582,8 @@ void RimWellPath::initAfterRead()
     {
         if ( auto oilField = RimProject::current()->activeOilField() )
         {
+            if ( !oilField->wellFormationsCollection() ) oilField->wellFormationsCollection = new RimWellFormationsCollection();
+
             auto* file = oilField->wellFormationsCollection->findOrCreate( m_wellPathFormationFilePath_OBSOLETE().path() );
             setWellFormationsFile( file, m_formationKeyInFile() );
         }

ApplicationLibCode/ProjectDataModel/WellPath/RimWellPathCollection.cpp

@@ -533,6 +533,9 @@ void RimWellPathCollection::addWellPathFormations( const QStringList& filePaths
     outputMessage += "-----------------------------------------------\n";
     outputMessage += "Well Name \tDetected Well Path \tCount\n";
 
+    // The collection is deletable from the project tree
+    if ( !oilField->wellFormationsCollection() ) oilField->wellFormationsCollection = new RimWellFormationsCollection();
+
     bool fileReadSuccess = false;
 
     for ( const QString& filePath : filePaths )