diff --git a/Src/nmNum/nmData/nmDataAnalyzeManager.cpp b/Src/nmNum/nmData/nmDataAnalyzeManager.cpp
index 81897a9..276281a 100644
--- a/Src/nmNum/nmData/nmDataAnalyzeManager.cpp
+++ b/Src/nmNum/nmData/nmDataAnalyzeManager.cpp
@@ -16,6 +16,7 @@
 
 #include "ZxDataWell.h"
 #include "ZxBaseUtil.h"
+#include <QHash>
 #include <QSet>
 #include <QThread>
 #include <QVariant>
@@ -375,10 +376,10 @@ bool nmDataAnalyzeManager::readFrameworkWellCurves(
         return false;
     }
 
-    // 第一步：枚举全部压力记录，不再只取第一条。
+    // 第一步：读取全部压力记录并统计非空 Code，不在读取顺序中决定身份有效性。
     const ZxDataObjectList listGaugeP =
             pWellData->getChildren(iDataModelType::sTypeDataGaugeP);
-    QSet<QString> setSeenPressureCodes;
+    QHash<QString, int> mapPressureCodeCounts;
     for(int nIndex = 0; nIndex < listGaugeP.size(); ++nIndex) {
         ZxDataGaugeP* pGaugeP = dynamic_cast<ZxDataGaugeP*>(listGaugeP[nIndex]);
         if(pGaugeP == nullptr) {
@@ -391,21 +392,26 @@ bool nmDataAnalyzeManager::readFrameworkWellCurves(
         oRecord.sGaugeTime = pGaugeP->getGaugeTime();
         oRecord.eStatus = readBlockAndClassify(
                     pGaugeP->getGaugeData(), oRecord.vecPressurePoints);
+        if(!oRecord.sGaugeCode.isEmpty()) {
+            mapPressureCodeCounts.insert(oRecord.sGaugeCode,
+                    mapPressureCodeCounts.value(oRecord.sGaugeCode) + 1);
+        }
+        vecPressureRecords.append(oRecord);
+    }
 
-        // 空 Code 或同井重复 Code 属于身份问题，覆盖内容判定结果。
+    // 第二步：空 Code 或重复 Code 的全部压力记录都属于身份无效。
+    for(int nIndex = 0; nIndex < vecPressureRecords.size(); ++nIndex) {
+        nmPressureGaugeRecord& oRecord = vecPressureRecords[nIndex];
         if(oRecord.sGaugeCode.isEmpty() ||
-           setSeenPressureCodes.contains(oRecord.sGaugeCode)) {
+           mapPressureCodeCounts.value(oRecord.sGaugeCode) > 1) {
             oRecord.eStatus = NM_GaugeRecord_InvalidIdentity;
-        } else {
-            setSeenPressureCodes.insert(oRecord.sGaugeCode);
         }
-        vecPressureRecords.append(oRecord);
     }
 
-    // 第二步：枚举全部流量记录，不再只取第一条。
+    // 第三步：读取全部流量记录并统计非空 Code。
     const ZxDataObjectList listGaugeF =
             pWellData->getChildren(iDataModelType::sTypeDataGaugeF);
-    QSet<QString> setSeenFlowCodes;
+    QHash<QString, int> mapFlowCodeCounts;
     for(int nIndex = 0; nIndex < listGaugeF.size(); ++nIndex) {
         ZxDataGaugeF* pGaugeF = dynamic_cast<ZxDataGaugeF*>(listGaugeF[nIndex]);
         if(pGaugeF == nullptr) {
@@ -427,15 +433,20 @@ bool nmDataAnalyzeManager::readFrameworkWellCurves(
                       pGaugeF, eWellCategory,
                       oRecord.vecOilPoints,
                       oRecord.vecGasPoints, oRecord.vecWaterPoints);
+        if(!oRecord.sGaugeCode.isEmpty()) {
+            mapFlowCodeCounts.insert(oRecord.sGaugeCode,
+                    mapFlowCodeCounts.value(oRecord.sGaugeCode) + 1);
+        }
+        vecFlowRecords.append(oRecord);
+    }
 
-        // 空 Code 或同井重复 Code 属于身份问题，覆盖内容判定结果。
+    // 第四步：空 Code 或重复 Code 的全部流量记录都属于身份无效。
+    for(int nIndex = 0; nIndex < vecFlowRecords.size(); ++nIndex) {
+        nmFlowGaugeRecord& oRecord = vecFlowRecords[nIndex];
         if(oRecord.sGaugeCode.isEmpty() ||
-           setSeenFlowCodes.contains(oRecord.sGaugeCode)) {
+           mapFlowCodeCounts.value(oRecord.sGaugeCode) > 1) {
             oRecord.eStatus = NM_GaugeRecord_InvalidIdentity;
-        } else {
-            setSeenFlowCodes.insert(oRecord.sGaugeCode);
         }
-        vecFlowRecords.append(oRecord);
     }
 
     return true;