diff --git a/AsbCloudDb/Model/AsbCloudDbContext.cs b/AsbCloudDb/Model/AsbCloudDbContext.cs
index a43f55c1..eeaa4e3c 100644
--- a/AsbCloudDb/Model/AsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/AsbCloudDbContext.cs
@@ -1,4 +1,5 @@
-using AsbCloudDb.Model.Subsystems;
+using AsbCloudDb.Model.GTR;
+using AsbCloudDb.Model.Subsystems;
 using Microsoft.EntityFrameworkCore;
 using System.Threading;
 using System.Threading.Tasks;
@@ -55,6 +56,11 @@ 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>();
+
         // WITS
         public DbSet<WITS.Record1> Record1 => Set<WITS.Record1>();
         public DbSet<WITS.Record7> Record7 => Set<WITS.Record7>();
@@ -334,6 +340,14 @@ namespace AsbCloudDb.Model
                     .HasJsonConversion();
             });
 
+            modelBuilder.Entity<WitsBase>(entity =>
+            {                
+                entity.HasKey(
+                    nameof(ITelemetryData.IdTelemetry),
+                    nameof(WitsBase.IdRecord),
+                    nameof(WitsBase.IdItem));
+            });
+
 
             modelBuilder.Entity<UserSetting>(entity =>
             {
diff --git a/AsbCloudDb/Model/GTR/WitsBase.cs b/AsbCloudDb/Model/GTR/WitsBase.cs
new file mode 100644
index 00000000..518867ca
--- /dev/null
+++ b/AsbCloudDb/Model/GTR/WitsBase.cs
@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AsbCloudDb.Model.GTR
+{
+    [Table("t_wits_base"), Comment("таблица данных ГТИ")]
+    public abstract class WitsBase : ITelemetryData
+    {
+        [Column("id_telemetry")]
+        public int IdTelemetry { get; set; }
+
+        [Column("id_record")]
+        public int IdRecord { get; set; }
+
+        [Column("id_item")]
+        public int IdItem { get; set; }
+
+        [Column("date", TypeName = "timestamp with time zone")]
+        public DateTimeOffset DateTime { get; set; }        
+       
+        [ForeignKey(nameof(IdTelemetry))]
+        public virtual Telemetry? Telemetry { get; set; }
+    }
+}
diff --git a/AsbCloudDb/Model/GTR/WitsFloat.cs b/AsbCloudDb/Model/GTR/WitsFloat.cs
new file mode 100644
index 00000000..ab5421e8
--- /dev/null
+++ b/AsbCloudDb/Model/GTR/WitsFloat.cs
@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AsbCloudDb.Model.GTR
+{
+    [Table("t_wits_int"), Comment("таблица данных ГТИ с типом значения float")]
+    public class WitsFloat : WitsBase
+    {
+        [Column("value")]
+        public float? Value { get; set; }
+    }
+}
diff --git a/AsbCloudDb/Model/GTR/WitsInt.cs b/AsbCloudDb/Model/GTR/WitsInt.cs
new file mode 100644
index 00000000..0b35e896
--- /dev/null
+++ b/AsbCloudDb/Model/GTR/WitsInt.cs
@@ -0,0 +1,17 @@
+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 : WitsBase
+    {
+        [Column("Value", TypeName = "bigint")]
+        public int? Value { get; set; }
+    }
+    
+    
+        
+
+    
+}
diff --git a/AsbCloudDb/Model/GTR/WitsStr.cs b/AsbCloudDb/Model/GTR/WitsStr.cs
new file mode 100644
index 00000000..54fca480
--- /dev/null
+++ b/AsbCloudDb/Model/GTR/WitsStr.cs
@@ -0,0 +1,14 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace AsbCloudDb.Model.GTR
+{
+    [Table("t_wits_string"), Comment("таблица данных ГТИ с типом значения string")]
+    public class WitsStr: WitsBase
+    {
+        [Column("value")]
+        [StringLength(64)]
+        public string? Value { get; set; }
+    }
+}
diff --git a/AsbCloudDb/Model/IAsbCloudDbContext.cs b/AsbCloudDb/Model/IAsbCloudDbContext.cs
index 446a7656..980ef455 100644
--- a/AsbCloudDb/Model/IAsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/IAsbCloudDbContext.cs
@@ -1,4 +1,5 @@
-using AsbCloudDb.Model.Subsystems;
+using AsbCloudDb.Model.GTR;
+using AsbCloudDb.Model.Subsystems;
 using AsbCloudDb.Model.WITS;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
@@ -47,6 +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<Driller> Drillers { get; }
         DbSet<Schedule> Schedule { get; }
         DbSet<OperationValue> OperationValues { get; }