diff --git a/AsbCloudApp/Services/ISaubDataCache.cs b/AsbCloudApp/Services/ISaubDataCache.cs
index 60fa3710..117b09d9 100644
--- a/AsbCloudApp/Services/ISaubDataCache.cs
+++ b/AsbCloudApp/Services/ISaubDataCache.cs
@@ -5,6 +5,7 @@ namespace AsbCloudApp.Services
 {
     public interface ISaubDataCache
     {
+        TelemetryAnalysis CurrentAnalysis { get; set; }
         IEnumerable<DataSaubBase> GetOrCreateCache(int telemetryId);
         void AddData(DataSaubBase data);
     }
diff --git a/AsbCloudDb/Model/TelemetryAnalysis.cs b/AsbCloudDb/Model/TelemetryAnalysis.cs
index add26302..0312ecf2 100644
--- a/AsbCloudDb/Model/TelemetryAnalysis.cs
+++ b/AsbCloudDb/Model/TelemetryAnalysis.cs
@@ -38,8 +38,11 @@ namespace AsbCloudDb.Model
         [Column("duration_sec"), Comment("Кол-во секунд после предыдущей операции")]
         public int Duration { get; set; }
 
-        [Column("well_depth"), Comment("Глубина, на которой закончилась операция")]
-        public double WellDepth { get; set; }
+        [Column("operation_start_depth"), Comment("Глубина, на которой началась операция")]
+        public double? OperationStartDepth { get; set; }
+
+        [Column("operation_end_depth"), Comment("Глубина, на которой закончилась операция")]
+        public double? OperationEndDepth { get; set; }
 
         [Column("is_well_depth_increasing"), Comment("Глубина забоя увеличивается")]
         public bool IsWellDepthIncreasing { get; set; }
diff --git a/AsbCloudInfrastructure/Services/AnalyticsService.cs b/AsbCloudInfrastructure/Services/AnalyticsService.cs
index 31c78098..6b12e3ea 100644
--- a/AsbCloudInfrastructure/Services/AnalyticsService.cs
+++ b/AsbCloudInfrastructure/Services/AnalyticsService.cs
@@ -185,7 +185,8 @@ namespace AsbCloudInfrastructure.Services
                 IdTelemetry = dataSaubBases.First().IdTelemetry,
                 UnixDate = (long)(lastSaubDate - new DateTime(1970, 1, 1, 0, 0, 0)).TotalSeconds,
                 Duration = (int)(dataSaubBases.Last().Date - dataSaubBases.ElementAt(dataSaubBases.Count() - 2).Date).TotalSeconds,
-                WellDepth = (double)dataSaubBases.Last().WellDepth,
+                OperationStartDepth = null,
+                OperationEndDepth = null,
                 IsWellDepthDecreasing = LinearFunctionCalculator.IsValueGoesDown(wellDepthChangingIndex, -0.0001),
                 IsWellDepthIncreasing = LinearFunctionCalculator.IsValueGoesUp(wellDepthChangingIndex, 0.0001),
                 IsBitPositionDecreasing = LinearFunctionCalculator.IsValueGoesDown(bitPositionChangingIndex, -0.0001),
diff --git a/AsbCloudInfrastructure/Services/DataService.cs b/AsbCloudInfrastructure/Services/DataService.cs
index c24f3a00..daaa4366 100644
--- a/AsbCloudInfrastructure/Services/DataService.cs
+++ b/AsbCloudInfrastructure/Services/DataService.cs
@@ -106,9 +106,23 @@ namespace AsbCloudInfrastructure.Services
                     var dataSaubs = saubDataCache.GetOrCreateCache(dataSaub.IdTelemetry)
                         .OrderBy(d => d.Date);
 
-                    var drillingAnalysis = analyticsService.GetDrillingAnalysis(dataSaubs);
+                    var telemetryAnalysis = analyticsService.GetDrillingAnalysis(dataSaubs);
 
-                    db.TelemetryAnalysis.Add(drillingAnalysis);
+                    if(saubDataCache.CurrentAnalysis is null)
+                        saubDataCache.CurrentAnalysis = telemetryAnalysis;
+
+                    if (saubDataCache.CurrentAnalysis.IdOperation == telemetryAnalysis.IdOperation)
+                    {
+                        saubDataCache.CurrentAnalysis.Duration +=
+                            telemetryAnalysis.Duration;
+                        saubDataCache.CurrentAnalysis.OperationEndDepth = item.WellDepth;
+                    }
+                    else
+                    {
+                        db.TelemetryAnalysis.Add(saubDataCache.CurrentAnalysis);
+                        saubDataCache.CurrentAnalysis = telemetryAnalysis;
+                        saubDataCache.CurrentAnalysis.OperationStartDepth = item.WellDepth;
+                    }
                 }
             }
 
diff --git a/AsbCloudInfrastructure/Services/SaubDataCache.cs b/AsbCloudInfrastructure/Services/SaubDataCache.cs
index 3621a6dc..d2a9b659 100644
--- a/AsbCloudInfrastructure/Services/SaubDataCache.cs
+++ b/AsbCloudInfrastructure/Services/SaubDataCache.cs
@@ -6,7 +6,9 @@ namespace AsbCloudInfrastructure.Services
 {
     public class SaubDataCache : ISaubDataCache
     {
-        private readonly Dictionary<int, List<DataSaubBase>> saubData =
+        public TelemetryAnalysis CurrentAnalysis { get; set; }
+
+        private readonly Dictionary<int, List<DataSaubBase>> saubData = 
             new Dictionary<int, List<DataSaubBase>>();
 
         public IEnumerable<DataSaubBase> GetOrCreateCache(int telemetryId)