diff --git a/AsbCloudInfrastructure/Services/WellboreService.cs b/AsbCloudInfrastructure/Services/WellboreService.cs
index 9d38683e..a0073128 100644
--- a/AsbCloudInfrastructure/Services/WellboreService.cs
+++ b/AsbCloudInfrastructure/Services/WellboreService.cs
@@ -58,7 +58,8 @@ public class WellboreService : IWellboreService
 			Id = 1,
 			Name = string.Format(WellboreNameFormat, 1),
 			Well = well,
-		};
+        };
+		//if(well.)
 
 		if(well.IdTelemetry is not null)
 		{
@@ -121,9 +122,6 @@ public class WellboreService : IWellboreService
                 var dataCache = telemetryDataCache.GetOrDefaultFirstLast(well.IdTelemetry.Value);
                 if (dataCache is not null)
                 {
-                    wellbore.DateStart = dataCache.Value.First.DateTime;
-                    wellbore.DepthStart = dataCache.Value.First.WellDepth!.Value;
-
                     wellbore.DateEnd = dataCache.Value.Last.DateTime;
                     wellbore.DepthEnd = dataCache.Value.Last.WellDepth!.Value;
                 }
diff --git a/AsbCloudWebApi.Tests/ServicesTests/WellboreServiceTest.cs b/AsbCloudWebApi.Tests/ServicesTests/WellboreServiceTest.cs
index 77f94b84..985a7e6f 100644
--- a/AsbCloudWebApi.Tests/ServicesTests/WellboreServiceTest.cs
+++ b/AsbCloudWebApi.Tests/ServicesTests/WellboreServiceTest.cs
@@ -3,14 +3,11 @@ using AsbCloudApp.Data.SAUB;
 using AsbCloudApp.Repositories;
 using AsbCloudApp.Requests;
 using AsbCloudApp.Services;
-using AsbCloudInfrastructure.Repository;
-using AsbCloudInfrastructure.Services.SAUB;
+using AsbCloudInfrastructure.Services;
 using NSubstitute;
-using Org.BouncyCastle.Asn1.Ocsp;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using Xunit;
@@ -19,25 +16,205 @@ namespace AsbCloudWebApi.Tests.ServicesTests
 {
     public class WellboreServiceTest
     {
+        private IWellService wellService;
+        private IWellOperationRepository wellOperationRepository;
+        private ITelemetryDataCache<TelemetryDataSaubDto> telemetryDataCache;
+        private WellboreService wellboreService;
+
+        private WellDto well1 = new WellDto
+        {
+            Id = 1,
+            IdState = 1,
+            IdTelemetry = 1,
+            LastTelemetryDate = DateTime.Now,
+            Caption = "well 1"
+        };
+
+        private WellDto well2 = new WellDto
+        {
+            Id = 2,
+            IdState = 1,
+            IdTelemetry = 100,
+            LastTelemetryDate = DateTime.Now,
+            Caption = "well 2"
+        };
 
         public WellboreServiceTest()
         {
-            var wellService = Substitute.For<IWellService>();
-            wellService.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
-                .Returns(Enumerable.Empty<WellDto>());
+            wellService = Substitute.For<IWellService>();
 
-            var wellOperationRepository = Substitute.For<IWellOperationRepository>();
-            wellOperationRepository.GetSectionsAsync(Arg.Any<IEnumerable<int>>(), Arg.Any<CancellationToken>())
-                .Returns(Enumerable.Empty<SectionByOperationsDto>());
+            wellOperationRepository = Substitute.For<IWellOperationRepository>();
+            
+            telemetryDataCache = Substitute.For<ITelemetryDataCache<TelemetryDataSaubDto>>();
 
-            var telemetryDataCache = Substitute.For<TelemetryDataCache<TelemetryDataSaubDto>>();
-            telemetryDataCache.GetOrDefaultFirstLast(Arg.Any<int>());
+            wellboreService = new WellboreService(wellService, wellOperationRepository, telemetryDataCache);
         }
 
         [Fact]
-        public async Task GetWellboresAsync()
+        public async Task GetWellboresAsync_returns_empty_collection()
         {
+            var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);
 
+            Assert.NotNull(result);
+            Assert.False(result.Any());
+        }
+
+        [Fact]
+        public async Task GetWellboresAsync_returns_one_bore_by_well_only()
+        {
+            wellService.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
+                .Returns(new WellDto[] { well1 });
+
+            var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);
+
+            Assert.Single(result);
+            var wellbore0 = result.ElementAt(0);
+            Assert.Equal(well1.Caption, wellbore0.Well.Caption);
+            Assert.Equal(well1.Id, wellbore0.Well.Id);
+
+            Assert.Equal("Ствол 1", wellbore0.Name);
+            Assert.Equal(1, wellbore0.Id);
+
+            Assert.Equal(default, wellbore0.DateStart);
+            Assert.Equal(default, wellbore0.DateEnd);
+            Assert.Equal(default, wellbore0.DepthStart);
+            Assert.Equal(default, wellbore0.DepthEnd);
+        }
+
+        [Fact]
+        public async Task GetWellboresAsync_returns_two_bore_by_two_wells_only()
+        {
+            wellService.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
+                .Returns(new WellDto[] { well1, well2 });
+
+            var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);
+
+            Assert.Equal(2, result.Count());
+        }
+
+        [Fact]
+        public async Task GetWellboresAsync_returns_two_bore_by_well_with_sections()
+        {
+            wellService.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
+                .Returns(new WellDto[] { well1 });
+
+            var section0 = new SectionByOperationsDto() 
+            { IdWell = well1.Id, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 01), DateEnd = new DateTime(2023, 01, 02), DepthStart = 000, DepthEnd = 100 };
+            var section1 = new SectionByOperationsDto() 
+            { IdWell = well1.Id, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 02), DateEnd = new DateTime(2023, 01, 03), DepthStart = 100, DepthEnd = 300 };
+            var section2 = new SectionByOperationsDto() 
+            { IdWell = well1.Id, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 03), DateEnd = new DateTime(2023, 01, 04), DepthStart = 200, DepthEnd = 210 };
+            var section3 = new SectionByOperationsDto() 
+            { IdWell = int.MaxValue, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 03), DateEnd = new DateTime(2023, 01, 04), DepthStart = 200, DepthEnd = 220 };
+
+            wellOperationRepository.GetSectionsAsync(Arg.Any<IEnumerable<int>>(), Arg.Any<CancellationToken>())
+                .Returns(new SectionByOperationsDto[]{section0, section1, section2, section3 });
+
+            var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);
+
+            Assert.Equal(2, result.Count());
+            var wellbore0 = result.ElementAt(0);
+            Assert.Equal(well1.Caption, wellbore0.Well.Caption);
+            Assert.Equal(well1.Id, wellbore0.Well.Id);
+
+            Assert.Equal("Ствол 1", wellbore0.Name);
+            Assert.Equal(1, wellbore0.Id);
+
+            Assert.Equal(section0.DateStart, wellbore0.DateStart);
+            Assert.Equal(section0.DepthStart, wellbore0.DepthStart);
+            Assert.Equal(section1.DateEnd, wellbore0.DateEnd);
+            Assert.Equal(section1.DepthEnd, wellbore0.DepthEnd);
+
+            var wellbore1 = result.ElementAt(1);
+            Assert.Equal(well1.Caption, wellbore1.Well.Caption);
+            Assert.Equal(well1.Id, wellbore1.Well.Id);
+
+            Assert.Equal("Ствол 2", wellbore1.Name);
+            Assert.Equal(2, wellbore1.Id);
+
+            Assert.Equal(section2.DateStart, wellbore1.DateStart);
+            Assert.Equal(section2.DepthStart, wellbore1.DepthStart);
+            Assert.Equal(section2.DateEnd, wellbore1.DateEnd);
+            Assert.Equal(section2.DepthEnd, wellbore1.DepthEnd);
+        }
+
+
+        [Fact]
+        public async Task GetWellboresAsync_returns_one_bore_by_well_with_telemetry()
+        {
+            wellService.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
+                .Returns(new WellDto[] { well1 });
+
+            var firstCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2000, 01, 01), WellDepth = 0, };
+            var lastCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2023, 01, 05), WellDepth = 321, };
+
+            telemetryDataCache.GetOrDefaultFirstLast(Arg.Any<int>())
+                .Returns((firstCacheItem, lastCacheItem));
+
+            var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);
+
+            Assert.Single(result);
+            var wellbore0 = result.ElementAt(0);
+            Assert.Equal(well1.Caption, wellbore0.Well.Caption);
+            Assert.Equal(well1.Id, wellbore0.Well.Id);
+
+            Assert.Equal("Ствол 1", wellbore0.Name);
+            Assert.Equal(1, wellbore0.Id);
+
+            Assert.Equal(firstCacheItem.DateTime, wellbore0.DateStart);
+            Assert.Equal(firstCacheItem.WellDepth!.Value, wellbore0.DepthStart);
+            Assert.Equal(lastCacheItem.DateTime, wellbore0.DateEnd);
+            Assert.Equal(lastCacheItem.WellDepth!.Value, wellbore0.DepthEnd);
+        }
+
+        [Fact]
+        public async Task GetWellboresAsync_returns_two_bore_by_well_with_all()
+        {
+            wellService.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
+                .Returns(new WellDto[] { well1 });
+
+            var section0 = new SectionByOperationsDto()
+            { IdWell = well1.Id, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 01), DateEnd = new DateTime(2023, 01, 02), DepthStart = 000, DepthEnd = 100 };
+            var section1 = new SectionByOperationsDto()
+            { IdWell = well1.Id, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 02), DateEnd = new DateTime(2023, 01, 03), DepthStart = 100, DepthEnd = 300 };
+            var section2 = new SectionByOperationsDto()
+            { IdWell = well1.Id, IdWellSectionType = 0, IdType = 1, DateStart = new DateTime(2023, 01, 03), DateEnd = new DateTime(2023, 01, 04), DepthStart = 200, DepthEnd = 210 };
+
+            wellOperationRepository.GetSectionsAsync(Arg.Any<IEnumerable<int>>(), Arg.Any<CancellationToken>())
+                .Returns(new SectionByOperationsDto[] { section0, section1, section2});
+
+            var firstCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2000, 01, 01), WellDepth = 0, };
+            var lastCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2023, 01, 05), WellDepth = 321, };
+
+            telemetryDataCache.GetOrDefaultFirstLast(Arg.Any<int>())
+                .Returns((firstCacheItem, lastCacheItem));
+
+            var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);
+
+            Assert.Equal(2, result.Count());
+            var wellbore0 = result.ElementAt(0);
+            Assert.Equal(well1.Caption, wellbore0.Well.Caption);
+            Assert.Equal(well1.Id, wellbore0.Well.Id);
+
+            Assert.Equal("Ствол 1", wellbore0.Name);
+            Assert.Equal(1, wellbore0.Id);
+
+            Assert.Equal(section0.DateStart, wellbore0.DateStart);
+            Assert.Equal(section0.DepthStart, wellbore0.DepthStart);
+            Assert.Equal(section1.DateEnd, wellbore0.DateEnd);
+            Assert.Equal(section1.DepthEnd, wellbore0.DepthEnd);
+
+            var wellbore1 = result.ElementAt(1);
+            Assert.Equal(well1.Caption, wellbore1.Well.Caption);
+            Assert.Equal(well1.Id, wellbore1.Well.Id);
+
+            Assert.Equal("Ствол 2", wellbore1.Name);
+            Assert.Equal(2, wellbore1.Id);
+
+            Assert.Equal(section2.DateStart, wellbore1.DateStart);
+            Assert.Equal(section2.DepthStart, wellbore1.DepthStart);
+            Assert.Equal(lastCacheItem.DateTime, wellbore1.DateEnd);
+            Assert.Equal(lastCacheItem.WellDepth!.Value, wellbore1.DepthEnd);
         }
     }
 }