diff --git a/AsbCloudInfrastructure/Services/WellService.cs b/AsbCloudInfrastructure/Services/WellService.cs
index 105cb5b3..6a805560 100644
--- a/AsbCloudInfrastructure/Services/WellService.cs
+++ b/AsbCloudInfrastructure/Services/WellService.cs
@@ -106,18 +106,18 @@ namespace AsbCloudInfrastructure.Services
 
         public async Task<WellMapInfoWithTelemetryStat?> GetOrDefaultStatAsync(int idWell, CancellationToken token)
         {
-            var entity = await GetOrDefaultAsync(idWell, token);
+            var well = await GetOrDefaultAsync(idWell, token);
 
-            if (entity is null)
+            if (well is null)
                 return null;
             
-            var dto = wellInfoService.FirstOrDefault(well => well.Id == idWell);
+            var wellInfo = wellInfoService.FirstOrDefault(well => well.Id == idWell);
 
-            if (dto is null)
-                return entity.Adapt<WellMapInfoWithTelemetryStat>();
+            if (wellInfo is null)
+                return well.Adapt<WellMapInfoWithTelemetryStat>();
                 
-            dto.IdState = entity.IdState;
-            return dto;
+            wellInfo.IdState = well.IdState;
+            return wellInfo;
         }
 
         public async Task<IEnumerable<WellDto>> GetAsync(WellRequest request, CancellationToken token)
diff --git a/AsbCloudWebApi/Controllers/WellController.cs b/AsbCloudWebApi/Controllers/WellController.cs
index 51e215ca..2a0ad437 100644
--- a/AsbCloudWebApi/Controllers/WellController.cs
+++ b/AsbCloudWebApi/Controllers/WellController.cs
@@ -1,4 +1,5 @@
 using AsbCloudApp.Data;
+using AsbCloudApp.Exceptions;
 using AsbCloudApp.Services;
 using AsbCloudDb.Model;
 using Microsoft.AspNetCore.Authorization;
@@ -136,7 +137,11 @@ namespace AsbCloudWebApi.Controllers
                 return Forbid();
 
             var dto = await wellService.GetOrDefaultAsync(idWell, token);
-            dto!.IdState = idState;
+            
+            if (dto is null)
+                return this.ValidationBadRequest(nameof(idWell), $"Скважина с id: {idWell} недоступна");
+
+            dto.IdState = idState;
 
             var result = await wellService.UpdateAsync(dto, token)
                 .ConfigureAwait(false);