diff --git a/AsbCloudApp/Data/User/ContactDto.cs b/AsbCloudApp/Data/User/ContactDto.cs
index adf4793a..904d4ca2 100644
--- a/AsbCloudApp/Data/User/ContactDto.cs
+++ b/AsbCloudApp/Data/User/ContactDto.cs
@@ -1,61 +1,60 @@
 using System;
 using System.ComponentModel.DataAnnotations;
 
-namespace AsbCloudApp.Data.User
+namespace AsbCloudApp.Data.User;
+
+/// <summary>
+/// Контакт
+/// </summary>
+public class ContactDto : IId
 {
+    /// <inheritdoc/>
+    public int Id { get; set; }
+
     /// <summary>
-    /// Контакт
+    /// ключ типа компании
     /// </summary>
+    [Required]
+    [Range(1, int.MaxValue)]
+    public int IdCompanyType { get; set; }
 
-    public class ContactDto : IId
-    {
-        /// <inheritdoc/>
-        public int Id { get; set; }
+    /// <summary>
+    /// ключ скважины
+    /// </summary>
+    [Required]
+    [Range(1,int.MaxValue)]
+    public int IdWell { get; set; }
 
-        /// <summary>
-        /// ключ типа компании
-        /// </summary>
-        [Required]
-        public int IdCompanyType { get; set; }
+    /// <summary>
+    /// ФИО
+    /// </summary>
+    [Required]
+    [StringLength(260, MinimumLength = 0, ErrorMessage = "Допустимая длина ФИО от 1 до 260 символов")]
+    public string FullName { get; set; } = null!;
 
-        /// <summary>
-        /// ключ скважины
-        /// </summary>
-        [Required]
-        public int IdWell { get; set; }
+    /// <summary>
+    /// Email
+    /// </summary>
+    [RegularExpression(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$", ErrorMessage = "Некорректный email")]
+    public string? Email { get; set; }
 
-        /// <summary>
-        /// ФИО
-        /// </summary>
-        [Required]
-        [StringLength(260, MinimumLength = 0, ErrorMessage = "Допустимая длина ФИО от 1 до 260 символов")]
-        public string FullName { get; set; } = null!;
+    /// <summary>
+    /// Phone
+    /// </summary>
+    [RegularExpression(@"^(?:\+7|8)\s?(?:\(\d{3}\)|\d{3})\s?\d{3}-?\d{2}-?\d{2}$", ErrorMessage = "Некорректный номер телефона")]
+    public string? Phone { get; set; }
 
-        /// <summary>
-        /// Email
-        /// </summary>
-        [RegularExpression(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$", ErrorMessage = "Некорректный email")]
-        public string? Email { get; set; }
+    /// <summary>
+    /// Должность
+    /// </summary>
+    [Required]
+    [StringLength(260, MinimumLength = 1, ErrorMessage = "Допустимая длина должности от 1 до 260 символов")]
+    public string Position { get; set; } = null!;
 
-        /// <summary>
-        /// Phone
-        /// </summary>
-        [RegularExpression(@"^(?:\+7|8)\s?(?:\(\d{3}\)|\d{3})\s?\d{3}-?\d{2}-?\d{2}$", ErrorMessage = "Некорректный номер телефона")]
-        public string? Phone { get; set; }
-
-        /// <summary>
-        /// Должность
-        /// </summary>
-        [Required]
-        [StringLength(260, MinimumLength = 1, ErrorMessage = "Допустимая длина должности от 1 до 260 символов")]
-        public string Position { get; set; } = null!;
-
-        /// <summary>
-        /// Компания
-        /// </summary>
-        [Required]
-        [StringLength(260, MinimumLength = 3, ErrorMessage = "Допустимая длина должности от 3 до 260 символов")]
-        public string Company { get; set; } = null!;
-
-    }
+    /// <summary>
+    /// Компания
+    /// </summary>
+    [Required]
+    [StringLength(260, MinimumLength = 3, ErrorMessage = "Допустимая длина названия компании от 3 до 260 символов")]
+    public string Company { get; set; } = null!;
 }
diff --git a/AsbCloudWebApi/Controllers/WellOperationController.cs b/AsbCloudWebApi/Controllers/WellOperationController.cs
index cab7e32c..d4723657 100644
--- a/AsbCloudWebApi/Controllers/WellOperationController.cs
+++ b/AsbCloudWebApi/Controllers/WellOperationController.cs
@@ -17,6 +17,7 @@ using AsbCloudApp.Services.WellOperationImport;
 using AsbCloudApp.Data.WellOperationImport.Options;
 using AsbCloudApp.Exceptions;
 using AsbCloudDb.Model;
+using AsbCloudInfrastructure;
 
 namespace AsbCloudWebApi.Controllers
 {
@@ -267,7 +268,7 @@ namespace AsbCloudWebApi.Controllers
             if (!await CanUserEditWellOperationsAsync(idWell, cancellationToken))
                 return Forbid();
 
-            if (deleteBeforeInsert && wellOperations.Any())
+            if (deleteBeforeInsert)
             {
                 var existingOperations = await operationRepository.GetAsync(new WellOperationRequest
                 {
@@ -356,7 +357,6 @@ namespace AsbCloudWebApi.Controllers
         [HttpPost("import/fact/default/{deleteBeforeInsert:bool}")]
         [ProducesResponseType(typeof(IEnumerable<WellOperationDto>), StatusCodes.Status200OK)]
         [ProducesResponseType(typeof(ValidationProblemDetails), StatusCodes.Status400BadRequest)]
-        [ProducesResponseType(StatusCodes.Status204NoContent)]
         [Permission]
         public Task<IActionResult> ImportFactDefaultExcelFileAsync(int idWell,
             [FromForm] IFormFileCollection files,
@@ -384,7 +384,6 @@ namespace AsbCloudWebApi.Controllers
         [HttpPost("import/plan/default")]
         [ProducesResponseType(typeof(IEnumerable<WellOperationDto>), StatusCodes.Status200OK)]
         [ProducesResponseType(typeof(ValidationProblemDetails), StatusCodes.Status400BadRequest)]
-        [ProducesResponseType(StatusCodes.Status204NoContent)]
         [Permission]
         public Task<IActionResult> ImportPlanDefaultExcelFileAsync(int idWell,
             [FromForm] IFormFileCollection files,
@@ -411,7 +410,6 @@ namespace AsbCloudWebApi.Controllers
         [HttpPost("import/plan/gazpromKhantos")]
         [ProducesResponseType(typeof(IEnumerable<WellOperationDto>), StatusCodes.Status200OK)]
         [ProducesResponseType(typeof(ValidationProblemDetails), StatusCodes.Status400BadRequest)]
-        [ProducesResponseType(StatusCodes.Status204NoContent)]
         [Permission]
         public Task<IActionResult> ImportPlanGazpromKhantosExcelFileAsync(int idWell,
             [FromForm] IFormFileCollection files,
@@ -533,14 +531,14 @@ namespace AsbCloudWebApi.Controllers
                 var wellOperations = wellOperationImportService.Import(idWell, idUser.Value, options.IdType, sheet)
                     .OrderBy(w => w.DateStart);
 
-                var dateStart = wellOperations.Min(w => w.DateStart);
+                var dateStart = wellOperations.MinOrDefault(w => w.DateStart);
 
                 foreach (var wellOperation in wellOperations)
-                    wellOperation.Day = (wellOperation.DateStart - dateStart).TotalDays;
-                
-                if (!wellOperations.Any())
-                    return NoContent();
-                
+                {
+                    if (dateStart.HasValue)
+                        wellOperation.Day = (wellOperation.DateStart - dateStart.Value).TotalDays;
+                }
+
                 //TODO: очень быстрый костыль
                 if (deleteBeforeInsert is not null && options.IdType == WellOperation.IdOperationTypeFact)
                 {