diff --git a/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.cpp b/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.cpp
index bbd68532df..cff4bb7299 100644
--- a/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.cpp
@@ -99,6 +99,10 @@ RimWellPltPlot::RimWellPltPlot()
 {
     CAF_PDM_InitObject( "Well Allocation Plot", ":/WellFlowPlot16x16.png", "", "" );
 
+    CAF_PDM_InitFieldNoDefault( &m_wellLogPlot_OBSOLETE, "WellLog", "WellLog", "", "", "" );
+    m_wellLogPlot_OBSOLETE.uiCapability()->setUiHidden( true );
+    m_wellLogPlot_OBSOLETE.xmlCapability()->setIOWritable( false );
+
     CAF_PDM_InitFieldNoDefault( &m_wellPathName, "WellName", "Well Name", "", "", "" );
 
     CAF_PDM_InitFieldNoDefault( &m_selectedSources, "SourcesInternal", "Sources Internal", "", "", "" );
@@ -1020,6 +1024,14 @@ void RimWellPltPlot::initAfterRead()
 {
     RimViewWindow::initAfterRead();
 
+    if ( m_wellLogPlot_OBSOLETE )
+    {
+        RimWellLogPlot& wellLogPlot = dynamic_cast<RimWellLogPlot&>( *this );
+        wellLogPlot                 = std::move( *m_wellLogPlot_OBSOLETE.value() );
+        delete m_wellLogPlot_OBSOLETE;
+        m_wellLogPlot_OBSOLETE = nullptr;
+    }
+
     RimWellLogPlot::initAfterRead();
 
     // Postpone init until data has been loaded
diff --git a/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.h b/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.h
index 4d0c74de0d..e8ec7c4b74 100644
--- a/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.h
+++ b/ApplicationLibCode/ProjectDataModel/Flow/RimWellPltPlot.h
@@ -121,6 +121,8 @@ private:
 
     caf::PdmField<std::vector<QDateTime>> m_selectedTimeSteps;
 
+    caf::PdmChildField<RimWellLogPlot*> m_wellLogPlot_OBSOLETE;
+
     caf::PdmField<bool>                                 m_useStandardConditionCurves;
     caf::PdmField<bool>                                 m_useReservoirConditionCurves;
     caf::PdmField<std::vector<caf::AppEnum<FlowPhase>>> m_phases;
diff --git a/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.cpp b/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.cpp
index 129cfb2bd4..8f5c0b18b1 100644
--- a/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.cpp
@@ -89,6 +89,10 @@ RimWellRftPlot::RimWellRftPlot()
     CAF_PDM_InitField( &m_showEnsembleCurves, "ShowEnsembleCurves", true, "Show Ensemble Curves", "", "", "" );
     CAF_PDM_InitField( &m_showErrorInObservedData, "ShowErrorObserved", true, "Show Observed Data Error", "", "", "" );
 
+    CAF_PDM_InitFieldNoDefault( &m_wellLogPlot_OBSOLETE, "WellLog", "Well Log", "", "", "" );
+    m_wellLogPlot_OBSOLETE.uiCapability()->setUiHidden( true );
+    m_wellLogPlot_OBSOLETE.xmlCapability()->setIOWritable( false );
+
     m_depthType = RiaDefines::DepthTypeEnum::TRUE_VERTICAL_DEPTH;
 
     CAF_PDM_InitFieldNoDefault( &m_wellPathNameOrSimWellName, "WellName", "Well Name", "", "", "" );
@@ -1090,6 +1094,14 @@ void RimWellRftPlot::onLoadDataAndUpdate()
 //--------------------------------------------------------------------------------------------------
 void RimWellRftPlot::initAfterRead()
 {
+    if ( m_wellLogPlot_OBSOLETE )
+    {
+        RimWellLogPlot& wellLogPlot = dynamic_cast<RimWellLogPlot&>( *this );
+        wellLogPlot                 = std::move( *m_wellLogPlot_OBSOLETE.value() );
+        delete m_wellLogPlot_OBSOLETE;
+        m_wellLogPlot_OBSOLETE = nullptr;
+    }
+
     RimWellLogPlot::initAfterRead();
 }
 
diff --git a/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.h b/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.h
index 106b8f4667..472dfdc66c 100644
--- a/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.h
+++ b/ApplicationLibCode/ProjectDataModel/Flow/RimWellRftPlot.h
@@ -160,4 +160,6 @@ private:
     std::map<RifDataSourceForRftPlt, cvf::Color3f>     m_dataSourceColors;
     std::map<QDateTime, RiuQwtSymbol::PointSymbolEnum> m_timeStepSymbols;
     bool                                               m_isOnLoad;
+
+    caf::PdmChildField<RimWellLogPlot*> m_wellLogPlot_OBSOLETE;
 };