diff --git a/AsbCloudApp/Data/GTR/WitsRecordDto.cs b/AsbCloudApp/Data/GTR/WitsRecordDto.cs
index 28e6ba81..763b439b 100644
--- a/AsbCloudApp/Data/GTR/WitsRecordDto.cs
+++ b/AsbCloudApp/Data/GTR/WitsRecordDto.cs
@@ -13,6 +13,11 @@ namespace AsbCloudApp.Data.GTR
         /// </summary>
         public int Id { get; set; }
 
+        /// <summary>
+        /// Id телеметрии
+        /// </summary>
+        public int IdTelemetry { get; set; }
+
         /// <summary>
         /// Дата создания записи
         /// </summary>
diff --git a/AsbCloudApp/Services/WITS/IGtrService.cs b/AsbCloudApp/Services/WITS/IGtrService.cs
new file mode 100644
index 00000000..c66831cf
--- /dev/null
+++ b/AsbCloudApp/Services/WITS/IGtrService.cs
@@ -0,0 +1,41 @@
+using AsbCloudApp.Data.GTR;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace AsbCloudApp.Services.WITS
+{
+#nullable enable
+    /// <summary>
+    /// данные ГТИ
+    /// </summary>
+    public interface IGtrService
+        
+    {
+        /// <summary>
+        /// добавить/изменить данные (для панели бурильщика)
+        /// </summary>
+        /// <param name="uid"></param>
+        /// <param name="dtos"></param>
+        /// <param name="token"></param>
+        /// <returns></returns>
+        Task<int> UpdateAsync(string uid, IEnumerable<WitsRecordDto> dtos, CancellationToken token);
+        
+        /// <summary>
+        /// получить  данные для клиента
+        /// </summary>
+        /// <param name="idWell"></param>
+        /// <param name="dateBegin"></param>
+        /// <param name="intervalSec"></param>
+        /// <param name="approxPointsCount">кол-во элементов до которых эти данные прореживаются</param>
+        /// <param name="token"></param>
+        /// <returns></returns>
+        Task<IEnumerable<WitsRecordDto>> GetAsync(int idWell,
+            DateTime dateBegin = default, double intervalSec = 600d,
+            int approxPointsCount = 1024, CancellationToken token = default);
+
+
+    }
+#nullable disable
+}
diff --git a/AsbCloudDb/Model/AsbCloudDbContext.cs b/AsbCloudDb/Model/AsbCloudDbContext.cs
index d749ceb7..4d94b290 100644
--- a/AsbCloudDb/Model/AsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/AsbCloudDbContext.cs
@@ -57,9 +57,9 @@ namespace AsbCloudDb.Model
         public virtual DbSet<TelemetryWirelineRunOut> TelemetryWirelineRunOut => Set<TelemetryWirelineRunOut>();
 
         // GTR WITS
-        public DbSet<WitsFloat> WitsFloat => Set<WitsFloat>();
-        public DbSet<WitsInt> WitsInt => Set<WitsInt>();
-        public DbSet<WitsStr> WitsStr => Set<WitsStr>();
+        public DbSet<WitsItemFloat> WitsItemFloat => Set<WitsItemFloat>();
+        public DbSet<WitsItemInt> WitsItemInt => Set<WitsItemInt>();
+        public DbSet<WitsItemString> WitsItemString => Set<WitsItemString>();
 
         // WITS
         public DbSet<WITS.Record1> Record1 => Set<WITS.Record1>();
@@ -340,21 +340,21 @@ namespace AsbCloudDb.Model
                     .HasJsonConversion();
             });
 
-            modelBuilder.Entity<WitsFloat>(entity =>
-            {                
+            modelBuilder.Entity<WitsItemFloat>(entity =>
+            {
                 entity.HasKey(
                     nameof(ITelemetryData.IdTelemetry),
                     nameof(WitsItemBase<float>.IdRecord),
                     nameof(WitsItemBase<float>.IdItem));
             });
-            modelBuilder.Entity<WitsInt>(entity =>
+            modelBuilder.Entity<WitsItemInt>(entity =>
             {
                 entity.HasKey(
                     nameof(ITelemetryData.IdTelemetry),
                     nameof(WitsItemBase<int>.IdRecord),
                     nameof(WitsItemBase<int>.IdItem));
             });
-            modelBuilder.Entity<WitsStr>(entity =>
+            modelBuilder.Entity<WitsItemString>(entity =>
             {
                 entity.HasKey(
                     nameof(ITelemetryData.IdTelemetry),
diff --git a/AsbCloudDb/Model/GTR/WitsFloat.cs b/AsbCloudDb/Model/GTR/WitsFloat.cs
deleted file mode 100644
index e993b6f6..00000000
--- a/AsbCloudDb/Model/GTR/WitsFloat.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-namespace AsbCloudDb.Model.GTR
-{
-    [Table("t_wits_float"), Comment("таблица данных ГТИ с типом значения float")]
-    public class WitsFloat : WitsItemBase<float> { }
-}
diff --git a/AsbCloudDb/Model/GTR/WitsInt.cs b/AsbCloudDb/Model/GTR/WitsInt.cs
deleted file mode 100644
index 22922688..00000000
--- a/AsbCloudDb/Model/GTR/WitsInt.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace AsbCloudDb.Model.GTR
-{
-    [Table("t_wits_int"), Comment("таблица данных ГТИ с типом значения int16 int32")]
-    public class WitsInt : WitsItemBase<int>, ITelemetryData { }
-}
diff --git a/AsbCloudDb/Model/GTR/WitsItemBase.cs b/AsbCloudDb/Model/GTR/WitsItemBase.cs
index 0127997d..c81d26b9 100644
--- a/AsbCloudDb/Model/GTR/WitsItemBase.cs
+++ b/AsbCloudDb/Model/GTR/WitsItemBase.cs
@@ -1,4 +1,5 @@
-using System;
+using Microsoft.EntityFrameworkCore;
+using System;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace AsbCloudDb.Model.GTR
@@ -24,7 +25,12 @@ namespace AsbCloudDb.Model.GTR
         public virtual Telemetry? Telemetry { get; set; }
     }
 
+    [Table("t_wits_string"), Comment("таблица данных ГТИ с типом значения string")] 
     public class WitsItemString : WitsItemBase<string> { }
+
+    [Table("t_wits_float"), Comment("таблица данных ГТИ с типом значения ")]
     public class WitsItemFloat : WitsItemBase<float> { }
+
+    [Table("t_wits_int"), Comment("таблица данных ГТИ с типом значения int16 int32")]
     public class WitsItemInt : WitsItemBase<int> { }
 }
diff --git a/AsbCloudDb/Model/GTR/WitsStr.cs b/AsbCloudDb/Model/GTR/WitsStr.cs
deleted file mode 100644
index 97ff2dc9..00000000
--- a/AsbCloudDb/Model/GTR/WitsStr.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace AsbCloudDb.Model.GTR
-{
-    [Table("t_wits_string"), Comment("таблица данных ГТИ с типом значения string")]
-    public class WitsStr: WitsItemBase<string> { }
-}
diff --git a/AsbCloudDb/Model/IAsbCloudDbContext.cs b/AsbCloudDb/Model/IAsbCloudDbContext.cs
index 980ef455..55a21b7c 100644
--- a/AsbCloudDb/Model/IAsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/IAsbCloudDbContext.cs
@@ -48,9 +48,9 @@ namespace AsbCloudDb.Model
         DbSet<WellOperationCategory> WellOperationCategories { get; }
         DbSet<WellSectionType> WellSectionTypes { get; }
         DbSet<WellType> WellTypes { get; }
-        DbSet<WitsFloat> WitsFloat { get; }
-        DbSet<WitsInt> WitsInt { get; }
-        DbSet<WitsStr> WitsStr { get; }
+        DbSet<WitsItemFloat> WitsItemFloat { get; }
+        DbSet<WitsItemInt> WitsItemInt { get; }
+        DbSet<WitsItemString> WitsItemString { get; }
         DbSet<Driller> Drillers { get; }
         DbSet<Schedule> Schedule { get; }
         DbSet<OperationValue> OperationValues { get; }
diff --git a/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs b/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs
new file mode 100644
index 00000000..4e16f277
--- /dev/null
+++ b/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs
@@ -0,0 +1,66 @@
+using AsbCloudApp.Data.GTR;
+using AsbCloudApp.Services;
+using AsbCloudApp.Services.WITS;
+using AsbCloudDb.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace AsbCloudInfrastructure.Repository
+{
+#nullable enable
+    public class GtrWitsRepository: IGtrService
+        
+    {
+
+        private readonly IAsbCloudDbContext db;
+        private readonly ITelemetryService telemetryService;
+
+        public GtrWitsRepository(
+            IAsbCloudDbContext db,
+            ITelemetryService telemetryService)
+        {
+            this.db = db;
+            this.telemetryService = telemetryService;
+        }
+
+        public async Task<IEnumerable<WitsRecordDto>> GetAsync(int idWell, DateTime dateBegin = default, double intervalSec = 600, int approxPointsCount = 1024, CancellationToken token = default)
+        {
+            var telemetry = telemetryService.GetOrDefaultTelemetryByIdWell(idWell);
+            if (telemetry is null)
+                return Enumerable.Empty<WitsRecordDto>();
+            var timezone = telemetryService.GetTimezone(telemetry.Id);
+
+            var filterByDateEnd = dateBegin != default;
+            DateTimeOffset dateBeginUtc;
+            if (dateBegin == default)
+            {
+                dateBeginUtc = telemetryService.GetLastTelemetryDate(telemetry.Id)
+                    .ToUtcDateTimeOffset(timezone.Hours);
+                if (dateBeginUtc != default)
+                    dateBeginUtc = dateBeginUtc.AddSeconds(-intervalSec);
+            }
+            else
+            {
+                dateBeginUtc = dateBegin.ToUtcDateTimeOffset(timezone.Hours);
+            }
+
+            if (dateBeginUtc == default)
+                dateBeginUtc = DateTime.UtcNow.AddSeconds(-intervalSec);
+            var dateEnd = dateBeginUtc.AddSeconds(intervalSec);
+
+            //временная заглушка(для билда без ошибок)
+            return Enumerable.Empty<WitsRecordDto>();
+        }
+
+
+
+        public Task<int> UpdateAsync(string uid, IEnumerable<WitsRecordDto> dtos, CancellationToken token)
+        {
+            throw new NotImplementedException();
+        }
+    }
+#nullable disable
+}