From 3d44ad37db3404e6b6638c42273b0011153a9903 Mon Sep 17 00:00:00 2001
From: Magne Sjaastad <magne.sjaastad@ceetronsolutions.com>
Date: Tue, 25 May 2021 08:43:24 +0200
Subject: [PATCH] #7719 Multi-lateral wells : Use top level well path to get
 air gap

Get airgap/md at first target from top level well path
---
 .../ReservoirDataModel/RigWellPathGeometryExporter.cpp      | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ApplicationLibCode/ReservoirDataModel/RigWellPathGeometryExporter.cpp b/ApplicationLibCode/ReservoirDataModel/RigWellPathGeometryExporter.cpp
index 29cf2bf816..e9788c64ca 100644
--- a/ApplicationLibCode/ReservoirDataModel/RigWellPathGeometryExporter.cpp
+++ b/ApplicationLibCode/ReservoirDataModel/RigWellPathGeometryExporter.cpp
@@ -41,7 +41,11 @@ void RigWellPathGeometryExporter::exportWellPathGeometry( gsl::not_null<const Ri
     useMdRkb         = false;
     double rkbOffset = 0.0;
     {
-        const RimModeledWellPath* modeledWellPath = dynamic_cast<const RimModeledWellPath*>( wellPath.get() );
+        // Always use top level modeled well path for definitions MD at first coordinate
+
+        const RimModeledWellPath* modeledWellPath =
+            dynamic_cast<const RimModeledWellPath*>( wellPath.get()->topLevelWellPath() );
+
         if ( modeledWellPath )
         {
             useMdRkb = true;