diff --git a/AsbCloudDb/Model/AsbCloudDbContext.cs b/AsbCloudDb/Model/AsbCloudDbContext.cs
index 25756978..3fcc2ad2 100644
--- a/AsbCloudDb/Model/AsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/AsbCloudDbContext.cs
@@ -90,6 +90,8 @@ namespace AsbCloudDb.Model
         public DbSet<Contact> Contacts => Set<Contact>();
 
         public DbSet<DrillTest> DrillTests => Set<DrillTest>();
+
+        public DbSet<ProcessMapDrillingCache> ProcessMapDrillingCache => Set<ProcessMapDrillingCache>();
         public AsbCloudDbContext() : base()
         {
             Interlocked.Increment(ref referenceCount);
diff --git a/AsbCloudDb/Model/IAsbCloudDbContext.cs b/AsbCloudDb/Model/IAsbCloudDbContext.cs
index 6934a326..a451fc45 100644
--- a/AsbCloudDb/Model/IAsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/IAsbCloudDbContext.cs
@@ -80,6 +80,7 @@ namespace AsbCloudDb.Model
         DbSet<DrillTest> DrillTests { get; }
         DbSet<TrajectoryFact> TrajectoriesFact { get; }
         DbSet<WellSectionPlan> WellSectionsPlan { get; }
+        DbSet<ProcessMapDrillingCache> ProcessMapDrillingCache { get; }
         DatabaseFacade Database { get; }
 
         Task<int> RefreshMaterializedViewAsync(string mwName, CancellationToken token);
diff --git a/AsbCloudDb/Model/ProcessMapDrillingCache.cs b/AsbCloudDb/Model/ProcessMapDrillingCache.cs
new file mode 100644
index 00000000..ebaddaa3
--- /dev/null
+++ b/AsbCloudDb/Model/ProcessMapDrillingCache.cs
@@ -0,0 +1,21 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AsbCloudDb.Model
+{
+    [Table("t_process_map_drilling_cache"), Comment("Кеш-таблица для хранения данных для РТК-отчета")]
+    public class ProcessMapDrillingCache : IId
+    {
+        [Key]
+        [Column("id")]
+        public int Id { get; set; }
+
+        [Column("date_from", TypeName = "timestamp with time zone"), Comment("Дата начала")]
+        public DateTimeOffset DateFrom { get; set; }
+
+        [Column("date_to", TypeName = "timestamp with time zone"), Comment("Дата окончания")]
+        public DateTimeOffset DateTo { get; set; }
+    }
+}
diff --git a/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCashe.cs b/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs
similarity index 86%
rename from AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCashe.cs
rename to AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs
index dbe63510..87e90a32 100644
--- a/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCashe.cs
+++ b/AsbCloudInfrastructure/Background/PeriodicWorks/WorkProcessMapDrillingCache.cs
@@ -11,12 +11,12 @@ using System.Threading.Tasks;
 
 namespace AsbCloudInfrastructure.Background.PeriodicWorks
 {
-    internal class WorkProcessMapDrillingCashe : Work
+    internal class WorkProcessMapDrillingCache : Work
     {
         private int MechanicalDrillingCategoryId = 4001;
-        public WorkProcessMapDrillingCashe() : base("Generate process map drilling cache table")
+        public WorkProcessMapDrillingCache() : base("Generate process map drilling cache table")
         {
-            Timeout = TimeSpan.FromMinutes(1);
+            Timeout = TimeSpan.FromMinutes(10);
         }
 
         protected override Task Action(string id, IServiceProvider services, Action<string, double?> onProgressCallback, CancellationToken token)
@@ -36,13 +36,13 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
             //7/ разбивка диапазонов:  
             // параметры метода: массив из
 
-            var dateStart = DateTimeOffset.UtcNow.AddDays(-3500);
-
             using var db = services.GetRequiredService<IAsbCloudDbContext>();
+            var dateFrom = db.ProcessMapDrillingCache.OrderByDescending(c => c.DateTo).FirstOrDefault()?.DateTo ?? DateTimeOffset.MinValue;   
+
 
             //а остальные операции, которые не вошли в 500 первых?
             var detectedOperations = db.DetectedOperations
-                .Where(o => o.DateStart > dateStart)
+                .Where(o => o.DateStart > dateFrom)
                 .Where(o => o.OperationCategory.IdParent == MechanicalDrillingCategoryId)
                 .Take(500)
                 .ToArray();
@@ -57,7 +57,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
                 .OrderBy(t => t.DateTime)
                 .ToArray();
 
-            var result = new List<CacheItem>();
+            var result = new List<ProcessMapDrillingCacheItem>();
             foreach (var operation in detectedOperations)
             {
                 var indexStart = 0;
@@ -68,7 +68,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
                     {
                         length++;
                     }
-                    else if(length > 0)
+                    else if (length > 0)
                     {
                         var subset = telemetryDataSaub.AsSpan(indexStart, length);
                         var ranges = getRanges(subset, operation);
@@ -79,13 +79,13 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
                 }
             }
 
-            return null;
+            return Task.CompletedTask;
         }
 
-        private List<CacheItem> getRanges(Span<TelemetryDataSaub> span, DetectedOperation operation)
+        private List<ProcessMapDrillingCacheItem> getRanges(Span<TelemetryDataSaub> span, DetectedOperation operation)
         {
-            var result = new List<CacheItem>();
-            var cacheItem = new CacheItem();
+            var result = new List<ProcessMapDrillingCacheItem>();
+            var cacheItem = new ProcessMapDrillingCacheItem();
             cacheItem.Elems.Add(span[0]);
             result.Add(cacheItem);
 
@@ -106,7 +106,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
                 isNewCacheItem = isNewCacheItem || !(current.IdFeedRegulator == prev.IdFeedRegulator);
                 if (isNewCacheItem)
                 {
-                    cacheItem = new CacheItem();
+                    cacheItem = new ProcessMapDrillingCacheItem();
                     result.Add(cacheItem);
                 }
                 cacheItem.Elems.Add(current);
@@ -115,7 +115,7 @@ namespace AsbCloudInfrastructure.Background.PeriodicWorks
         }
     }
 
-    internal class CacheItem 
+    internal class ProcessMapDrillingCacheItem
     {
         public List<TelemetryDataSaub> Elems = new List<TelemetryDataSaub>();
     }
diff --git a/AsbCloudInfrastructure/Startup.cs b/AsbCloudInfrastructure/Startup.cs
index f6d2fe47..3561654a 100644
--- a/AsbCloudInfrastructure/Startup.cs
+++ b/AsbCloudInfrastructure/Startup.cs
@@ -29,7 +29,7 @@ namespace AsbCloudInfrastructure
             _ = provider.GetRequiredService<ITelemetryDataCache<TelemetryDataSpinDto>>();
 
             var backgroundWorker = provider.GetRequiredService<PeriodicBackgroundWorker>();
-            backgroundWorker.Add<WorkProcessMapDrillingCashe>(TimeSpan.FromDays(1));
+            backgroundWorker.Add<WorkProcessMapDrillingCache>(TimeSpan.FromDays(1));
             backgroundWorker.Add<WorkToDeleteOldReports>(TimeSpan.FromDays(1));
             backgroundWorker.Add<WellInfoService.WorkWellInfoUpdate>(TimeSpan.FromMinutes(30));
             backgroundWorker.Add<WorkOperationDetection>(TimeSpan.FromMinutes(15));