diff --git a/AsbCloudApp/Repositories/IWellOperationRepository.cs b/AsbCloudApp/Repositories/IWellOperationRepository.cs
index d1db155e..8cb313ac 100644
--- a/AsbCloudApp/Repositories/IWellOperationRepository.cs
+++ b/AsbCloudApp/Repositories/IWellOperationRepository.cs
@@ -2,6 +2,7 @@
 using AsbCloudApp.Requests;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -114,5 +115,20 @@ namespace AsbCloudApp.Repositories
 		/// <param name="cancellationToken"></param>
 		/// <returns></returns>
 		Task<DatesRangeDto?> GetDatesRangeAsync(int idWell, int idType, CancellationToken cancellationToken);
-	}
+
+        /// <summary>
+        /// Валидация данных 
+        /// </summary>
+        /// <param name="wellOperations"></param>
+        /// <returns></returns>
+        IEnumerable<ValidationResult> Validate(IEnumerable<WellOperationDto> wellOperations);
+
+        /// <summary>
+        /// Валидация данных (проверка с базой)
+        /// </summary>
+        /// <param name="wellOperations"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task<IEnumerable<ValidationResult>> ValidateWithDbAsync(IEnumerable<WellOperationDto> wellOperations, CancellationToken cancellationToken);
+    }
 }
\ No newline at end of file
diff --git a/AsbCloudInfrastructure/Repository/WellOperationRepository.cs b/AsbCloudInfrastructure/Repository/WellOperationRepository.cs
index fb0a8c12..208e94ac 100644
--- a/AsbCloudInfrastructure/Repository/WellOperationRepository.cs
+++ b/AsbCloudInfrastructure/Repository/WellOperationRepository.cs
@@ -9,6 +9,7 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Caching.Memory;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -22,6 +23,8 @@ namespace AsbCloudInfrastructure.Repository;
 public class WellOperationRepository : IWellOperationRepository
 {
     private const string KeyCacheSections = "OperationsBySectionSummarties";
+    private const int Gap = 90;
+
     private readonly IAsbCloudDbContext db;
     private readonly IMemoryCache memoryCache;
     private readonly IWellService wellService;
@@ -50,7 +53,7 @@ public class WellOperationRepository : IWellOperationRepository
         }
 
         var result = categories
-            .OrderBy(o => o.Name)                
+            .OrderBy(o => o.Name)
             .Adapt<IEnumerable<WellOperationCategoryDto>>();
 
         return result;
@@ -89,14 +92,14 @@ public class WellOperationRepository : IWellOperationRepository
     }
 
     private async Task<DateTime?> GetDateLastAssosiatedPlanOperationAsync(
-        int idWell, 
-        DateTime? lessThenDate, 
-        double timeZoneHours, 
+        int idWell,
+        DateTime? lessThenDate,
+        double timeZoneHours,
         CancellationToken token)
     {
-        if (lessThenDate is null)            
+        if (lessThenDate is null)
             return null;
-        
+
         var currentDateOffset = lessThenDate.Value.ToUtcDateTimeOffset(timeZoneHours);
         var timeZoneOffset = TimeSpan.FromHours(timeZoneHours);
 
@@ -187,7 +190,7 @@ public class WellOperationRepository : IWellOperationRepository
     public async Task<DatesRangeDto?> GetDatesRangeAsync(int idWell, int idType, CancellationToken cancellationToken)
     {
         var timezone = wellService.GetTimezone(idWell);
-        
+
         var query = db.WellOperations.Where(o => o.IdWell == idWell && o.IdType == idType);
 
         if (!await query.AnyAsync(cancellationToken))
@@ -195,7 +198,7 @@ public class WellOperationRepository : IWellOperationRepository
 
         var minDate = await query.MinAsync(o => o.DateStart, cancellationToken);
         var maxDate = await query.MaxAsync(o => o.DateStart, cancellationToken);
-        
+
         return new DatesRangeDto
         {
             From = minDate.ToRemoteDateTime(timezone.Hours),
@@ -306,12 +309,13 @@ public class WellOperationRepository : IWellOperationRepository
                 DeltaDepth = g.Sum(o => o.DurationDepth),
                 IdParent = parentRelationDictionary[g.Key].IdParent
             });
-        
+
         while (dtos.All(x => x.IdParent != null))
         {
             dtos = dtos
             .GroupBy(o => o.IdParent!)
-            .Select(g => {
+            .Select(g =>
+            {
                 var idCategory = g.Key ?? int.MinValue;
                 var category = parentRelationDictionary.GetValueOrDefault(idCategory);
                 var newDto = new WellGroupOpertionDto
@@ -330,6 +334,66 @@ public class WellOperationRepository : IWellOperationRepository
         return dtos;
     }
 
+    public async Task<IEnumerable<ValidationResult>> ValidateWithDbAsync(IEnumerable<WellOperationDto> wellOperationDtos, CancellationToken token)
+    {
+        var firstOperation = wellOperationDtos
+            .FirstOrDefault();
+
+        if (firstOperation is null)
+            return Enumerable.Empty<ValidationResult>();
+
+        var request = new WellOperationRequest()
+        {
+            IdWell = firstOperation.IdWell,
+            OperationType = firstOperation.IdType,
+        };
+
+        var entities = await BuildQuery(request)
+            .AsNoTracking()
+            .ToArrayAsync(token);
+
+        var wellOperationsUnion = entities.Union(wellOperationDtos).OrderBy(o => o.DateStart);
+
+        var results = Validate(wellOperationsUnion);
+        return results;
+    }
+
+    public IEnumerable<ValidationResult> Validate(IEnumerable<WellOperationDto> wellOperationDtos)
+    {
+        var enumerator = wellOperationDtos.OrderBy(o => o.DateStart)
+            .GetEnumerator();
+        
+        if (!enumerator.MoveNext())
+            yield break;
+
+        var previous = enumerator.Current;
+
+        while(enumerator.MoveNext())
+        {
+            var current = enumerator.Current;
+            var previousDateStart = previous.DateStart.ToUniversalTime();
+            var currentDateStart = current.DateStart.ToUniversalTime();
+
+            var previousDateEnd = previous.DateStart.AddHours(previous.DurationHours).ToUniversalTime();
+
+            if (previousDateStart.AddDays(Gap) < currentDateStart)
+            {
+                yield return new ValidationResult(
+                       "Разница дат между операциями не должна превышать 90 дней",
+                       new[] { nameof(wellOperationDtos) });
+            }
+
+            if (previousDateEnd > currentDateStart)
+            {
+                yield return new ValidationResult(
+                      "Предыдущая операция не завершена",
+                      new[] { nameof(wellOperationDtos) });
+            }
+
+            previous = current;
+        }
+    }
+
     /// <inheritdoc/>
     public async Task<int> InsertRangeAsync(
         IEnumerable<WellOperationDto> wellOperationDtos,
diff --git a/AsbCloudWebApi.IntegrationTests/BaseIntegrationTest.cs b/AsbCloudWebApi.IntegrationTests/BaseIntegrationTest.cs
index d18c54bf..add2e07b 100644
--- a/AsbCloudWebApi.IntegrationTests/BaseIntegrationTest.cs
+++ b/AsbCloudWebApi.IntegrationTests/BaseIntegrationTest.cs
@@ -6,7 +6,7 @@ namespace AsbCloudWebApi.IntegrationTests;
 
 public abstract class BaseIntegrationTest : IClassFixture<WebAppFactoryFixture>
 {
-	private readonly IServiceScope scope;
+	protected readonly IServiceScope scope;
 	
 	protected readonly IAsbCloudDbContext dbContext;
 
diff --git a/AsbCloudWebApi.IntegrationTests/Clients/IWellOperationClient.cs b/AsbCloudWebApi.IntegrationTests/Clients/IWellOperationClient.cs
new file mode 100644
index 00000000..2db55d36
--- /dev/null
+++ b/AsbCloudWebApi.IntegrationTests/Clients/IWellOperationClient.cs
@@ -0,0 +1,17 @@
+using AsbCloudApp.Data;
+using Microsoft.AspNetCore.Mvc;
+using Refit;
+
+namespace AsbCloudWebApi.IntegrationTests.Clients;
+
+public interface IWellOperationClient
+{
+    private const string BaseRoute = "/api/well/{idWell}/wellOperations";
+
+    [Post(BaseRoute + "/{idType}/{deleteBeforeInsert}")]
+    Task<IApiResponse<int>> InsertRangeAsync(int idWell, int idType, bool deleteBeforeInsert, [Body] IEnumerable<WellOperationDto> dtos);
+
+    [Put(BaseRoute + "/{idOperation}")]
+    Task<IApiResponse<int>> UpdateAsync(int idWell, int idOperation, [FromBody] WellOperationDto value, CancellationToken token);
+
+}
\ No newline at end of file
diff --git a/AsbCloudWebApi.IntegrationTests/Controllers/WellOperationControllerTest.cs b/AsbCloudWebApi.IntegrationTests/Controllers/WellOperationControllerTest.cs
new file mode 100644
index 00000000..3ac32e40
--- /dev/null
+++ b/AsbCloudWebApi.IntegrationTests/Controllers/WellOperationControllerTest.cs
@@ -0,0 +1,186 @@
+using AsbCloudApp.Data;
+using AsbCloudDb.Model;
+using AsbCloudWebApi.IntegrationTests.Clients;
+using System.Net;
+using Xunit;
+
+namespace AsbCloudWebApi.IntegrationTests.Controllers;
+
+
+public class WellOperationControllerTest : BaseIntegrationTest
+{
+    private static int idWell = 1;
+
+    private readonly WellOperationDto[] dtos = new WellOperationDto[]
+    {
+         new WellOperationDto()
+        {
+            Id = 2,
+            IdWell = idWell,
+            IdType = 1,
+            DateStart = DateTimeOffset.Now,
+            CategoryInfo = "1",
+            CategoryName = "1",
+            Comment = "1",
+            Day = 1,
+            DepthEnd = 20,
+            DepthStart = 10,
+            DurationHours = 1,
+            IdCategory = 5000,
+            IdParentCategory = null,
+            IdPlan = null,
+            IdUser = 1,
+            IdWellSectionType = 1,
+            LastUpdateDate = DateTimeOffset.Now,
+            NptHours = 1,
+            WellSectionTypeName = null,
+            UserName = null
+        }
+    };
+
+    private readonly WellOperationDto[] dtosWithError = new WellOperationDto[]
+    {
+        new WellOperationDto()
+        {
+            Id = 3,
+            IdWell = idWell,
+            IdType = 1,
+            DateStart = DateTimeOffset.Now,
+            CategoryInfo = "1",
+            CategoryName = "1",
+            Comment = "1",
+            Day = 1,
+            DepthEnd = 20,
+            DepthStart = 10,
+            DurationHours = 1,
+            IdCategory = 5000,
+            IdParentCategory = null,
+            IdPlan = null,
+            IdUser = 1,
+            IdWellSectionType = 1,
+            LastUpdateDate = DateTimeOffset.Now,
+            NptHours = 1,
+            WellSectionTypeName = null,
+            UserName = null
+        },
+        new WellOperationDto()
+        {
+            Id = 4,
+            IdWell = idWell,
+            IdType = 1,
+            DateStart = DateTimeOffset.Now.AddDays(1000),
+            CategoryInfo = "1",
+            CategoryName = "1",
+            Comment = "1",
+            Day = 1,
+            DepthEnd = 20,
+            DepthStart = 10,
+            DurationHours = 1,
+            IdCategory = 5000,
+            IdParentCategory = null,
+            IdPlan = null,
+            IdUser = 1,
+            IdWellSectionType = 1,
+            LastUpdateDate = DateTimeOffset.Now,
+            NptHours = 1,
+            WellSectionTypeName = null,
+            UserName = null
+        }
+    };
+
+    private IWellOperationClient wellOperationClient;
+
+    public WellOperationControllerTest(WebAppFactoryFixture factory)
+        : base(factory)
+    {
+        wellOperationClient = factory.GetAuthorizedHttpClient<IWellOperationClient>();
+    }
+
+    /// <summary>
+    /// Успешное добавление операций (без предварительной очистки данных)
+    /// </summary>
+    /// <returns></returns>
+    [Fact]
+    public async Task InsertRange_returns_success()
+    {
+        dbContext.CleanupDbSet<WellOperation>();
+        //act
+        var response = await wellOperationClient.InsertRangeAsync(idWell, 1, false, dtos);
+
+        //assert
+        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
+    }
+
+
+    /// <summary>
+    /// Неуспешное добавление операций (без предварительной очистки данных)
+    /// </summary>
+    /// <returns></returns>
+    [Fact]
+    public async Task InsertRange_returns_error()
+    {
+        //act
+        var response = await wellOperationClient.InsertRangeAsync(idWell, 1, false, dtosWithError);
+
+        //assert
+        Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
+    }
+
+    /// <summary>
+    /// Успешное добавление операций (с предварительной очисткой данных)
+    /// </summary>
+    /// <returns></returns>
+    [Fact]
+    public async Task InsertRangeWithDeleteBefore_returns_success()
+    {
+        //act
+        var response = await wellOperationClient.InsertRangeAsync(idWell, 1, true, dtos);
+
+        //assert
+        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
+    }
+
+    /// <summary>
+    /// Неуспешное добавление операций (с предварительной очисткой данных)
+    /// </summary>
+    /// <returns></returns>
+    [Fact]
+    public async Task InsertRangeWithDeleteBefore_returns_error()
+    {
+        //act
+        var response = await wellOperationClient.InsertRangeAsync(idWell, 1, true, dtosWithError);
+
+        //assert
+        Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
+    }
+
+    /// <summary>
+    /// Успешное обновление операции
+    /// </summary>
+    /// <returns></returns>
+    [Fact]
+    public async Task UpdateAsync_returns_success()
+    {
+        //act
+        var dto = dtos.FirstOrDefault()!;
+        var response = await wellOperationClient.UpdateAsync(idWell, 1, dto, CancellationToken.None);
+
+        //assert
+        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
+    }
+
+    /// <summary>
+    /// Неуспешное обновление операции
+    /// </summary>
+    /// <returns></returns>
+    [Fact]
+    public async Task UpdateAsync_returns_error()
+    {
+        //act
+        var dto = dtosWithError.LastOrDefault()!;
+        var response = await wellOperationClient.UpdateAsync(idWell, 1, dto, CancellationToken.None);
+
+        //assert
+        Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
+    }
+}
\ No newline at end of file
diff --git a/AsbCloudWebApi.IntegrationTests/Data/Defaults.cs b/AsbCloudWebApi.IntegrationTests/Data/Defaults.cs
index ddb7dbe7..45219449 100644
--- a/AsbCloudWebApi.IntegrationTests/Data/Defaults.cs
+++ b/AsbCloudWebApi.IntegrationTests/Data/Defaults.cs
@@ -14,7 +14,28 @@ namespace AsbCloudWebApi.IntegrationTests.Data
                 Surname = "test"
             }
         };
-        
+
+        public static WellOperation[] WellOperations = new WellOperation[]
+        {
+            new()
+            {
+                 Id = 1,
+                 IdWell = 1,
+                 IdType = 1,
+                 DateStart = DateTimeOffset.UtcNow.AddDays(-1),
+                 CategoryInfo = "1",
+                 Comment = "1",
+                 DepthEnd = 20,
+                 DepthStart = 10,
+                 DurationHours = 1,
+                 IdCategory = 5000,
+                 IdPlan = null,
+                 IdUser = 1,
+                 IdWellSectionType = 1,
+                 LastUpdateDate = DateTimeOffset.UtcNow              
+            }
+        };
+
         public static Deposit[] Deposits = new Deposit[] {
             new()
             {
diff --git a/AsbCloudWebApi.IntegrationTests/WebAppFactoryFixture.cs b/AsbCloudWebApi.IntegrationTests/WebAppFactoryFixture.cs
index a0111303..af7303b6 100644
--- a/AsbCloudWebApi.IntegrationTests/WebAppFactoryFixture.cs
+++ b/AsbCloudWebApi.IntegrationTests/WebAppFactoryFixture.cs
@@ -60,7 +60,8 @@ public class WebAppFactoryFixture : WebApplicationFactory<Startup>,
         dbContext.AddRange(Data.Defaults.RelationsCompanyWell);
 		dbContext.AddRange(Data.Defaults.Telemetries);
 		dbContext.AddRange(Data.Defaults.Drillers);
-		await dbContext.SaveChangesAsync();
+        dbContext.AddRange(Data.Defaults.WellOperations);
+        await dbContext.SaveChangesAsync();
     }
 
     public new async Task DisposeAsync()
diff --git a/AsbCloudWebApi/Controllers/WellOperationController.cs b/AsbCloudWebApi/Controllers/WellOperationController.cs
index ae0c8b92..74d4e16f 100644
--- a/AsbCloudWebApi/Controllers/WellOperationController.cs
+++ b/AsbCloudWebApi/Controllers/WellOperationController.cs
@@ -1,7 +1,13 @@
 using AsbCloudApp.Data;
+using AsbCloudApp.Data.WellOperationImport;
+using AsbCloudApp.Data.WellOperationImport.Options;
+using AsbCloudApp.Exceptions;
 using AsbCloudApp.Repositories;
 using AsbCloudApp.Requests;
 using AsbCloudApp.Services;
+using AsbCloudApp.Services.WellOperationImport;
+using AsbCloudDb.Model;
+using AsbCloudInfrastructure;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
@@ -12,12 +18,6 @@ using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
-using AsbCloudApp.Data.WellOperationImport;
-using AsbCloudApp.Services.WellOperationImport;
-using AsbCloudApp.Data.WellOperationImport.Options;
-using AsbCloudApp.Exceptions;
-using AsbCloudDb.Model;
-using AsbCloudInfrastructure;
 
 namespace AsbCloudWebApi.Controllers
 {
@@ -39,8 +39,8 @@ namespace AsbCloudWebApi.Controllers
         private readonly IWellOperationExcelParser<WellOperationImportGazpromKhantosOptionsDto> wellOperationGazpromKhantosExcelParser;
         private readonly IUserRepository userRepository;
 
-        public WellOperationController(IWellOperationRepository operationRepository, 
-            IWellService wellService, 
+        public WellOperationController(IWellOperationRepository operationRepository,
+            IWellService wellService,
             IWellOperationImportTemplateService wellOperationImportTemplateService,
             IWellOperationExportService wellOperationExportService,
             IWellOperationImportService wellOperationImportService,
@@ -231,12 +231,16 @@ namespace AsbCloudWebApi.Controllers
 
             if (!await CanUserEditWellOperationsAsync(idWell, cancellationToken))
                 return Forbid();
-            
+
             wellOperation.IdWell = idWell;
             wellOperation.LastUpdateDate = DateTimeOffset.UtcNow;
             wellOperation.IdUser = User.GetUserId();
             wellOperation.IdType = idType;
 
+            var validationResult = await operationRepository.ValidateWithDbAsync(new[] { wellOperation }, cancellationToken);
+            if (validationResult.Any())
+                return this.ValidationBadRequest(validationResult);
+
             var result = await operationRepository.InsertRangeAsync(new[] { wellOperation }, cancellationToken);
 
             return Ok(result);
@@ -278,7 +282,7 @@ namespace AsbCloudWebApi.Controllers
 
                 await operationRepository.DeleteAsync(existingOperations.Select(o => o.Id), cancellationToken);
             }
-            
+
             foreach (var wellOperation in wellOperations)
             {
                 wellOperation.IdWell = idWell;
@@ -287,11 +291,32 @@ namespace AsbCloudWebApi.Controllers
                 wellOperation.IdType = idType;
             }
 
+
+            var validationResult = await Validate(wellOperations, deleteBeforeInsert, cancellationToken);
+            if (validationResult.Any())
+                return this.ValidationBadRequest(validationResult);
+
             var result = await operationRepository.InsertRangeAsync(wellOperations, cancellationToken);
 
             return Ok(result);
         }
 
+
+        /// <summary>
+        /// Валидация данных перед вставкой / обновлением / импортом
+        /// </summary>
+        /// <param name="wellOperations"></param>
+        /// <param name="deleteBeforeInsert"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        private async Task<IEnumerable<ValidationResult>> Validate(IEnumerable<WellOperationDto> wellOperations, bool deleteBeforeInsert, CancellationToken cancellationToken)
+        {
+            if (deleteBeforeInsert)
+                return operationRepository.Validate(wellOperations);
+            else
+                return await operationRepository.ValidateWithDbAsync(wellOperations, cancellationToken);
+        }
+
         /// <summary>
         /// Обновляет выбранную операцию на скважине
         /// </summary>
@@ -308,7 +333,7 @@ namespace AsbCloudWebApi.Controllers
         {
             if (!await CanUserAccessToWellAsync(idWell, token))
                 return Forbid();
-            
+
             if (!await CanUserEditWellOperationsAsync(idWell, token))
                 return Forbid();
 
@@ -317,6 +342,10 @@ namespace AsbCloudWebApi.Controllers
             value.LastUpdateDate = DateTimeOffset.UtcNow;
             value.IdUser = User.GetUserId();
 
+            var validationResult = await operationRepository.ValidateWithDbAsync(new[] { value }, token);
+            if (validationResult.Any())
+                return this.ValidationBadRequest(validationResult);
+
             var result = await operationRepository.UpdateAsync(value, token)
                 .ConfigureAwait(false);
             return Ok(result);
@@ -336,7 +365,7 @@ namespace AsbCloudWebApi.Controllers
         {
             if (!await CanUserAccessToWellAsync(idWell, token))
                 return Forbid();
-            
+
             if (!await CanUserEditWellOperationsAsync(idWell, token))
                 return Forbid();
 
@@ -373,7 +402,7 @@ namespace AsbCloudWebApi.Controllers
                 deleteBeforeInsert,
                 cancellationToken);
         }
-        
+
         /// <summary>
         /// Импорт плановых операций из excel (xlsx) файла. Стандартный заполненный шаблон
         /// </summary>
@@ -393,7 +422,7 @@ namespace AsbCloudWebApi.Controllers
             {
                 IdType = WellOperation.IdOperationTypePlan
             };
-            
+
             return ImportExcelFileAsync(idWell, files, options,
                 (stream, _) => wellOperationDefaultExcelParser.Parse(stream, options),
                 null,
@@ -522,7 +551,7 @@ namespace AsbCloudWebApi.Controllers
                 return this.ValidationBadRequest(nameof(files), "Требуется xlsx файл.");
 
             using Stream stream = file.OpenReadStream();
-            
+
             try
             {
                 var sheet = parseMethod(stream, options);
@@ -541,8 +570,8 @@ namespace AsbCloudWebApi.Controllers
                 //TODO: очень быстрый костыль
                 if (deleteBeforeInsert is not null && options.IdType == WellOperation.IdOperationTypeFact)
                 {
-                    return await InsertRangeAsync(idWell, options.IdType, 
-                        deleteBeforeInsert.Value, 
+                    return await InsertRangeAsync(idWell, options.IdType,
+                        deleteBeforeInsert.Value,
                         wellOperations,
                         cancellationToken);
                 }
@@ -554,21 +583,21 @@ namespace AsbCloudWebApi.Controllers
                 return this.ValidationBadRequest(nameof(files), ex.Message);
             }
         }
-        
+
         private async Task<bool> CanUserAccessToWellAsync(int idWell, CancellationToken token)
         {
             int? idCompany = User.GetCompanyId();
             return idCompany is not null && await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
                 idWell, token).ConfigureAwait(false);
         }
-        
+
         private async Task<bool> CanUserEditWellOperationsAsync(int idWell, CancellationToken token)
         {
             var idUser = User.GetUserId();
 
             if (!idUser.HasValue)
                 return false;
-            
+
             var well = await wellService.GetOrDefaultAsync(idWell, token);
 
             if (well is null)
diff --git a/AsbCloudWebApi/Extentions.cs b/AsbCloudWebApi/Extentions.cs
index ba87612f..5659292c 100644
--- a/AsbCloudWebApi/Extentions.cs
+++ b/AsbCloudWebApi/Extentions.cs
@@ -3,6 +3,8 @@ using AsbCloudWebApi.Converters;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
 using System.Security.Claims;
 
 namespace Microsoft.AspNetCore.Mvc
@@ -53,6 +55,27 @@ namespace Microsoft.AspNetCore.Mvc
             return controller.BadRequest(problem);
         }
 
+        /// <summary>
+        /// <para>
+        /// Returns BadRequest with ValidationProblemDetails as body
+        /// </para>
+        /// <para>
+        /// Используйте этот метод только если валидацию нельзя сделать через 
+        /// атрибуты валидации или IValidatableObject модели.
+        /// </para>
+        /// </summary>
+        /// <param name="controller"></param>
+        /// <param name="validationResults"></param>
+        /// <returns></returns>
+        public static BadRequestObjectResult ValidationBadRequest(this ControllerBase controller, IEnumerable<ValidationResult> validationResults)
+        {
+            var errors = validationResults
+                .SelectMany(e => e.MemberNames.Select(name=> new { name, e.ErrorMessage }))
+                .ToDictionary(e => e.name, e => new[] { e.ErrorMessage ?? string.Empty });
+            var problem = new ValidationProblemDetails(errors);
+            return controller.BadRequest(problem);
+        }
+
         public static MvcOptions UseDateOnlyTimeOnlyStringConverters(this MvcOptions options)
         {
             TypeDescriptor.AddAttributes(typeof(DateOnly), new TypeConverterAttribute(typeof(DateOnlyTypeConverter)));