diff --git a/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs b/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs
index 73419ca5..1c18196b 100644
--- a/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs
+++ b/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs
@@ -38,6 +38,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
             // параметры метода: массив из
 
             using var db = services.GetRequiredService<IAsbCloudDbContext>();
+
             var dateFrom = db.ProcessMapDrillingCache
                 .OrderByDescending(c => c.DateTo)
                 .FirstOrDefault()?.DateTo 
@@ -66,14 +67,8 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
             var indexEnd = 0;
             foreach (var operation in detectedOperations)
             {
-                var telemetryDataSaubItemStart = telemetryDataSaub
-                    .FirstOrDefault(t => t.DateTime >= operation.DateStart);
-                var telemetryDataSaubItemEnd = telemetryDataSaub
-                   .Where(t => t.DateTime <= operation.DateEnd)
-                   .LastOrDefault();
-
-                indexStart = Array.IndexOf(telemetryDataSaub, telemetryDataSaubItemStart, indexEnd);
-                indexEnd = Array.IndexOf(telemetryDataSaub, telemetryDataSaubItemEnd, indexStart);
+                indexStart = Array.FindIndex(telemetryDataSaub, indexEnd, t => t.DateTime >= operation.DateStart );
+                indexEnd = Array.FindIndex(telemetryDataSaub, indexStart, t => t.DateTime > operation.DateEnd) - 1;
 
                 if(indexStart >= 0 && indexEnd >= indexStart)
                 {
@@ -81,6 +76,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
 
                     var subset = telemetryDataSaub.AsSpan(indexStart, length + 1);
                     var result = CalcStats(operation, subset);
+
                 }
                
             }
@@ -96,11 +92,13 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
                 var previous = telemetryDataSaub[i - 1];
                 var current = telemetryDataSaub[i];
 
-                if(IsNewCacheItem(previous, current))
+                if(IsNewCacheItem(previous, current) || i == telemetryDataSaub.Length)
                 {
-                    var span = telemetryDataSaub.Slice(indexStart, i - indexStart);
+                    var length = i - indexStart;
+                    var span = telemetryDataSaub.Slice(indexStart, length);
                     indexStart = i;
                     var processMapDrillingCacheItem = CalcStat(operation, span);
+
                 }
             }
             return null;
@@ -109,7 +107,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
         private ProcessMapDrillingCache CalcStat(DetectedOperation operation, Span<TelemetryDataSaub> span)
         {
             var depthStart = span[0].WellDepth;
-            var depthEnd = span[span.Length - 1].WellDepth;
+            var depthEnd = span[^1].WellDepth;
 
             var hasOscillation = false;
             if (operation.ExtraData.TryGetValue(DetectorDrilling.ExtraDataKeyHasOscillation, out object? HasOscillation))
@@ -149,15 +147,17 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
             double AxialLoad, 
             double RotorTorque, 
             double RotorSpeed
-            ) CalcValue(Span<TelemetryDataSaub> span, float diffDepthTotal)
+            ) CalcValue(Span<TelemetryDataSaub> span)
         {
             var sumPressure = 0.0;
             var sumAxialLoad = 0.0;
             var sumRotorTorque = 0.0;
             var sumRotorSpeed = 0.0;
+            var diffDepthTotal = span[^1].WellDepth - span[0].WellDepth;
             for (var i = 0; i < span.Length - 1; i++)
             {
-                sumPressure += (span[i + 1].WellDepth - span[i].WellDepth) * span[i].Pressure;
+                var weigth = span[i + 1].WellDepth - span[i].WellDepth;
+                sumPressure += () * span[i].Pressure;
                 sumAxialLoad += (span[i + 1].WellDepth - span[i].WellDepth) * span[i].AxialLoad;
                 sumRotorTorque += (span[i + 1].WellDepth - span[i].WellDepth) * span[i].RotorTorque;
                 sumRotorSpeed += (span[i + 1].WellDepth - span[i].WellDepth) * span[i].RotorSpeed;