diff --git a/Src/nmNum/nmSubWxs/nmWxAutomaticFitting.cpp b/Src/nmNum/nmSubWxs/nmWxAutomaticFitting.cpp
index 968ef94..267e4e6 100644
--- a/Src/nmNum/nmSubWxs/nmWxAutomaticFitting.cpp
+++ b/Src/nmNum/nmSubWxs/nmWxAutomaticFitting.cpp
@@ -230,8 +230,79 @@ nmWxAutomaticFitting::nmWxAutomaticFitting(QWidget *parent)
 	}
 
 	// 获取数据
-	reservoirData = nmDataAnalyzeManager::getCurrentInstance()->getReservoirDataCopy();
-	automaticFittingData = nmDataAnalyzeManager::getCurrentInstance()->getAutomaticFittingDataCopy();
+	nmDataAnalyzeManager* pManager = nmDataAnalyzeManager::getCurrentInstance();
+	reservoirData = pManager->getReservoirDataCopy();
+	automaticFittingData = pManager->getAutomaticFittingDataCopy();
+
+	NM_SOLVER_MODEL_TYPE solverModelType = pManager->getSolverModelType();
+	// 只有尚未点击确定保存过配置时才使用相态默认值；重新打开时保留已保存的数据。
+	if(pManager->getAutomaticFittingData() == nullptr) {
+		bool isOilOrWaterSinglePhase = solverModelType == SMT_Oil_ConstPvt ||
+		                                   solverModelType == SMT_Oil_VariablePvt ||
+		                                   solverModelType == SMT_Water_ConstPvt ||
+		                                   solverModelType == SMT_Water_VariablePvt;
+		if(isOilOrWaterSinglePhase) {
+			reservoirData.getPermeability().setValue(2.5e-2);
+			automaticFittingData.getPermeabilityMin().setValue(1.0e-3);
+			automaticFittingData.getPermeabilityMax().setValue(10.0);
+			automaticFittingData.getSkinMin().setValue(-10.0);
+			automaticFittingData.getSkinMax().setValue(10.0);
+			automaticFittingData.getWellboreStorageMin().setValue(1.0e-4);
+			automaticFittingData.getWellboreStorageMax().setValue(2.0);
+			automaticFittingData.getPorosityMin().setValue(1.0e-2);
+			automaticFittingData.getPorosityMax().setValue(5.0e-1);
+			automaticFittingData.getInitialPressureMin().setValue(0.1);
+			automaticFittingData.getInitialPressureMax().setValue(50.0);
+			automaticFittingData.getThicknessMin().setValue(2.0);
+			automaticFittingData.getThicknessMax().setValue(50.0);
+			automaticFittingData.getCtMin().setValue(1.0e-3);
+			automaticFittingData.getCtMax().setValue(1.0e-1);
+			automaticFittingData.getCfMin().setValue(1.0e-5);
+			automaticFittingData.getCfMax().setValue(1.0e-2);
+		}
+
+		// 气单相变化 PVT 使用 T5 数据集对应的初始值和拟合范围。
+		if(solverModelType == SMT_Gas_VariablePvt) {
+			reservoirData.getPermeability().setValue(5.5e-6);
+			reservoirData.getPorosity().setValue(3.5e-2);
+			reservoirData.getThickness().setValue(8.0);
+			reservoirData.getCf().setValue(3.0e-4);
+
+			automaticFittingData.getPermeabilityMin().setValue(4.5e-6);
+			automaticFittingData.getPermeabilityMax().setValue(6.2e-6);
+			automaticFittingData.getSkinMin().setValue(0.0);
+			automaticFittingData.getSkinMax().setValue(4.5);
+			automaticFittingData.getWellboreStorageMin().setValue(5.0e-5);
+			automaticFittingData.getWellboreStorageMax().setValue(1.6e-4);
+			automaticFittingData.getPorosityMin().setValue(8.0e-3);
+			automaticFittingData.getPorosityMax().setValue(4.0e-2);
+			automaticFittingData.getThicknessMin().setValue(7.0);
+			automaticFittingData.getThicknessMax().setValue(11.0);
+			automaticFittingData.getCfMin().setValue(1.0e-4);
+			automaticFittingData.getCfMax().setValue(2.0e-3);
+		} else if(solverModelType == SMT_Oil_ConstPvt ||
+		          solverModelType == SMT_Water_ConstPvt) {
+			// T1/T3 使用固定初值，不继承当前储层参数。
+			reservoirData.getPorosity().setValue(2.45e-2);
+			reservoirData.getInitialPressure().setValue(34.47);
+			reservoirData.getThickness().setValue(9.144);
+			reservoirData.getCt().setValue(1.0e-2);
+		} else if(solverModelType == SMT_Oil_VariablePvt) {
+			// 油单相变化 PVT 使用固定初值。
+			reservoirData.getPorosity().setValue(6.0e-2);
+			reservoirData.getThickness().setValue(10.5);
+			reservoirData.getCf().setValue(1.0e-3);
+			reservoirData.getInitialPressure().setValue(34.47);
+			automaticFittingData.setInitialPressureSelected(false);
+		} else if(solverModelType == SMT_Water_VariablePvt) {
+			// 水单相变化 PVT 使用固定初值。
+			reservoirData.getPorosity().setValue(6.0e-2);
+			reservoirData.getThickness().setValue(10.5);
+			reservoirData.getCf().setValue(1.5e-3);
+			reservoirData.getInitialPressure().setValue(34.47);
+			automaticFittingData.setInitialPressureSelected(false);
+		}
+	}
 
 	setupUI();
 	setWindowTitle(tr("Automatic fitting"));
@@ -816,6 +887,28 @@ void nmWxAutomaticFitting::onWellSelected(int index)
 		}
 	}
 
+	// 尚未保存拟合配置时使用相态默认值；已保存时保留井上的 Skin 和井筒储集系数。
+	nmDataAnalyzeManager* pManager = nmDataAnalyzeManager::getCurrentInstance();
+	bool useDefaultFittingValues = pManager && pManager->getAutomaticFittingData() == nullptr;
+	if(useDefaultFittingValues && (pManager->getSolverModelType() == SMT_Oil_ConstPvt ||
+	                               pManager->getSolverModelType() == SMT_Water_ConstPvt)) {
+		skinValue = 0.0;
+		wellboreStorageValue = 1.0e-2;
+		found = true;
+	} else if(useDefaultFittingValues && pManager->getSolverModelType() == SMT_Gas_VariablePvt) {
+		skinValue = 1.0;
+		wellboreStorageValue = 6.0e-5;
+		found = true;
+	} else if(useDefaultFittingValues && pManager->getSolverModelType() == SMT_Oil_VariablePvt) {
+		skinValue = -0.2;
+		wellboreStorageValue = 1.5e-2;
+		found = true;
+	} else if(useDefaultFittingValues && pManager->getSolverModelType() == SMT_Water_VariablePvt) {
+		skinValue = -0.2;
+		wellboreStorageValue = 1.0e-2;
+		found = true;
+	}
+
 	if (found) {
 		// 更新表格数据
 		// 确保表格项存在