diff --git a/AsbCloudApp/Services/IDrillingProgramService.cs b/AsbCloudApp/Services/IDrillingProgramService.cs
index 71a81d64..b3f54b55 100644
--- a/AsbCloudApp/Services/IDrillingProgramService.cs
+++ b/AsbCloudApp/Services/IDrillingProgramService.cs
@@ -8,16 +8,16 @@ namespace AsbCloudApp.Services
 {
     public interface IDrillingProgramService
     {
+        Task<IEnumerable<UserDto>> GetAvailableUsers(int idWell, CancellationToken token = default);
         Task<IEnumerable<FileCategoryDto>> GetCategoriesAsync(CancellationToken token = default);
-        Task<DrillingProgramStateDto> GetStateAsync(int idWell, int fileChangerId, 
+        Task<DrillingProgramStateDto> GetStateAsync(int idWell, int idUser, 
             CancellationToken token = default);
-        Task<int> AddOrReplaceFileMarkAsync(FileMarkDto fileMarkDto, int idUser, CancellationToken token);
-        Task<int> MarkAsDeletedFileMarkAsync(int idFileMark, CancellationToken token);
+        Task<int> AddFile(int idWell, int idFileCategory, int idUser, string fileFullName, System.IO.Stream fileStream, CancellationToken token = default);
         Task<int> AddPartsAsync(int idWell, IEnumerable<int> idFileCategories, CancellationToken token = default);
         Task<int> RemovePartsAsync(int idWell, IEnumerable<int> idFileCategories, CancellationToken token = default);
-        Task<int> AddUserAsync(int idUser, int idPart, int idUserRole, CancellationToken token = default);
-        Task<int> RemoveUserAsync(int idUser, int idPart, int idUserRole, CancellationToken token = default);
-        Task<int> AddFile(int idPart, int idUser, string fileFullName, Stream fileStream, CancellationToken token = default);
-        Task<IEnumerable<UserDto>> GetAvailableUsers(int idWell, CancellationToken token = default);
+        Task<int> AddUserAsync(int idWell, int idFileCategory, int idUser, int idUserRole, CancellationToken token = default);
+        Task<int> RemoveUserAsync(int idWell, int idFileCategory, int idUser, int idUserRole, CancellationToken token = default);
+        Task<int> AddOrReplaceFileMarkAsync(FileMarkDto fileMarkDto, int idUser, CancellationToken token);
+        Task<int> MarkAsDeletedFileMarkAsync(int idFileMark, CancellationToken token);
     }
 }
\ No newline at end of file
diff --git a/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs b/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs
index b1c6f2fb..82d4c174 100644
--- a/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs
+++ b/AsbCloudInfrastructure/Services/DrillingProgram/DrillingProgramService.cs
@@ -138,14 +138,14 @@ namespace AsbCloudInfrastructure.Services.DrillingProgram
             return state;
         }
 
-        public async Task<int> AddFile(int idPart, int idUser, string fileFullName, System.IO.Stream fileStream, CancellationToken token = default)
+        public async Task<int> AddFile(int idWell, int idFileCategory, int idUser, string fileFullName, System.IO.Stream fileStream, CancellationToken token = default)
         {
             var part = await context.DrillingProgramParts
                 .Include(p => p.RelatedUsers)
-                .FirstOrDefaultAsync(p => p.Id == idPart, token);
+                .FirstOrDefaultAsync(p => p.IdWell == idWell && p.IdFileCategory == idFileCategory, token);
             
             if (part == null)
-                throw new ArgumentInvalidException($"DrillingProgramPart id == {idPart} does not exist", nameof(idPart));
+                throw new ArgumentInvalidException($"DrillingProgramPart id == {idFileCategory} does not exist", nameof(idFileCategory));
 
             if (! part.RelatedUsers.Any(r => r.IdUser == idUser && r.IdUserRole == idUserRolePublisher))
                 throw new ForbidException($"User {idUser} is not in the publisher list.");
@@ -198,45 +198,51 @@ namespace AsbCloudInfrastructure.Services.DrillingProgram
             return await context.SaveChangesAsync(token);
         }
 
-        public async Task<int> AddUserAsync(int idUser, int idPart, int idUserRole, CancellationToken token = default)
+        public async Task<int> AddUserAsync(int idWell, int idFileCategory, int idUser, int idUserRole, CancellationToken token = default)
         {
             var user = await userService.GetAsync(idUser, token);
             if (user is null)
                 throw new ArgumentInvalidException($"User id == {idUser} does not exist", nameof(idUser));
 
-            var drillingProgramPart = await context.DrillingProgramParts.FirstOrDefaultAsync(p => p.Id == idPart, token);
-            if (drillingProgramPart is null)
-                throw new ArgumentInvalidException($"DrillingProgramPart id == {idPart} does not exist", nameof(idPart));
+            var part = await context.DrillingProgramParts
+                .FirstOrDefaultAsync(p => p.IdWell == idWell && p.IdFileCategory == idFileCategory, token);
+
+            if (part is null)
+                throw new ArgumentInvalidException($"DrillingProgramPart idFileCategory == {idFileCategory} does not exist", nameof(idFileCategory));
 
             if (idUserRole != idUserRoleApprover && idUserRole != idUserRolePublisher)
-                throw new ArgumentInvalidException($"idUserRole ({idPart}), should be approver ({idUserRoleApprover}) or publisher ({idUserRolePublisher})", nameof(idPart));
+                throw new ArgumentInvalidException($"idUserRole ({idUserRole}), should be approver ({idUserRoleApprover}) or publisher ({idUserRolePublisher})", nameof(idUserRole));
+
+            var oldRelation = await context.RelationDrillingProgramPartUsers
+                .FirstOrDefaultAsync(r => r.IdUser == idUser && r.IdDrillingProgramPart == part.Id, token);
+
+            if(oldRelation is not null)
+                context.RelationDrillingProgramPartUsers.Remove(oldRelation);
 
             var newRelation = new RelationUserDrillingProgramPart
             {
                 IdUser = idUser,
-                IdDrillingProgramPart = idPart,
+                IdDrillingProgramPart = part.Id,
                 IdUserRole = idUserRole,
             };
 
             context.RelationDrillingProgramPartUsers.Add(newRelation);
             if(idUserRole == idUserRoleApprover)
-                await RemoveDrillingProgramAsync(drillingProgramPart.IdWell, token);
+                await RemoveDrillingProgramAsync(part.IdWell, token);
             return await context.SaveChangesAsync(token);
         }
 
-        public async Task<int> RemoveUserAsync(int idUser, int idPart, int idUserRole, CancellationToken token = default)
+        public async Task<int> RemoveUserAsync(int idWell, int idFileCategory, int idUser, int idUserRole, CancellationToken token = default)
         {
             var whereQuery = context.RelationDrillingProgramPartUsers
+                .Include(r => r.DrillingProgramPart)
                 .Where(r => r.IdUser == idUser &&
-                    r.IdDrillingProgramPart == idPart &&
-                    r.IdUserRole == idUserRole);
+                    r.IdUserRole == idUserRole &&
+                    r.DrillingProgramPart.IdWell == idWell &&
+                    r.DrillingProgramPart.IdFileCategory == idFileCategory);
 
             context.RelationDrillingProgramPartUsers.RemoveRange(whereQuery);
-            if (idUserRole == idUserRoleApprover)
-            {
-                var part = await context.DrillingProgramParts.FirstOrDefaultAsync(p => p.Id == idPart, token);
-            }
-                
+                            
             return await context.SaveChangesAsync(token);
         }
 
diff --git a/AsbCloudWebApi/Controllers/DrillingProgramController.cs b/AsbCloudWebApi/Controllers/DrillingProgramController.cs
index 0bc72bc7..4c1b72b5 100644
--- a/AsbCloudWebApi/Controllers/DrillingProgramController.cs
+++ b/AsbCloudWebApi/Controllers/DrillingProgramController.cs
@@ -82,17 +82,17 @@ namespace AsbCloudWebApi.Controllers
         /// <summary>
         /// Загрузка файла для части программы бурения
         /// </summary>
-        /// <param name="idPart">ID части программы. Не путать с категорией файла</param>
         /// <param name="idWell"></param>
+        /// <param name="idFileCategory">ID части программы. Не путать с категорией файла</param>
         /// <param name="files"></param>
         /// <param name="token"></param>
         /// <returns></returns>
-        [HttpPost("part/{idPart}")]
+        [HttpPost("part/{idFileCategory}")]
         [Permission]
         [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
         public async Task<IActionResult> AddFile(
-            int idPart,
             int idWell,
+            int idFileCategory,
             [FromForm] IFormFileCollection files, 
             CancellationToken token)
         {
@@ -118,7 +118,7 @@ namespace AsbCloudWebApi.Controllers
                 return BadRequest(ArgumentInvalidException.MakeValidationError("file", "Файл должен быть xlsx"));
 
             var fileStream = files[0].OpenReadStream();
-            var result  = await drillingProgramService.AddFile(idPart, (int)idUser, fileName, fileStream, token);
+            var result  = await drillingProgramService.AddFile(idWell, idFileCategory, (int)idUser, fileName, fileStream, token);
 
             return Ok(result);
         }
@@ -180,14 +180,14 @@ namespace AsbCloudWebApi.Controllers
         /// </summary>
         /// <param name="idWell"></param>
         /// <param name="idUser"></param>
-        /// <param name="idPart"></param>
+        /// <param name="idFileCategory"></param>
         /// <param name="idUserRole"></param>
         /// <param name="token"></param>
         /// <returns></returns>
-        [HttpPost("part/{idPart}/user")]
+        [HttpPost("part/{idFileCategory}/user")]
         [Permission]
         [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
-        public async Task<IActionResult> AddUserAsync(int idWell, [Required] int idUser, int idPart, [Required] int idUserRole, CancellationToken token = default)
+        public async Task<IActionResult> AddUserAsync(int idWell, [Required] int idUser, int idFileCategory, [Required] int idUserRole, CancellationToken token = default)
         {
             int? idCompany = User.GetCompanyId();
             int? idUserEditor = User.GetUserId();
@@ -199,7 +199,7 @@ namespace AsbCloudWebApi.Controllers
                 idWell, token).ConfigureAwait(false))
                 return Forbid();
 
-            var result = await drillingProgramService.AddUserAsync(idUser, idPart, idUserRole, token);
+            var result = await drillingProgramService.AddUserAsync(idWell, idFileCategory, idUser, idUserRole, token);
             return Ok(result);
         }
 
@@ -208,14 +208,14 @@ namespace AsbCloudWebApi.Controllers
         /// </summary>
         /// <param name="idWell"></param>
         /// <param name="idUser"></param>
-        /// <param name="idPart"></param>
+        /// <param name="idFileCategory"></param>
         /// <param name="idUserRole"></param>
         /// <param name="token"></param>
         /// <returns></returns>
-        [HttpDelete("part/{idPart}/user/{idUser}")]
+        [HttpDelete("part/{idFileCategory}/user/{idUser}")]
         [Permission]
         [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
-        public async Task<IActionResult> RemoveUserAsync(int idWell, int idUser, int idPart, [Required]int idUserRole, CancellationToken token = default)
+        public async Task<IActionResult> RemoveUserAsync(int idWell, int idUser, int idFileCategory, [Required]int idUserRole, CancellationToken token = default)
         {
             int? idCompany = User.GetCompanyId();
             int? idUserEditor = User.GetUserId();
@@ -227,7 +227,7 @@ namespace AsbCloudWebApi.Controllers
                 idWell, token).ConfigureAwait(false))
                 return Forbid();
 
-            var result = await drillingProgramService.RemoveUserAsync(idUser, idPart, idUserRole, token);
+            var result = await drillingProgramService.RemoveUserAsync(idWell, idFileCategory,idUser, idUserRole, token);
             return Ok(result);
         }