diff --git a/AsbCloudDb/Model/IAsbCloudDbContext.cs b/AsbCloudDb/Model/IAsbCloudDbContext.cs
index a8626d3b..789466cf 100644
--- a/AsbCloudDb/Model/IAsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/IAsbCloudDbContext.cs
@@ -34,6 +34,10 @@ namespace AsbCloudDb.Model
         int SaveChanges(bool acceptAllChangesOnSuccess);
         Task<int> SaveChangesAsync(CancellationToken cancellationToken);
 
+        DbSet<TEntity> Set<TEntity>(string name) where TEntity : class;
+        
+        DbSet<TEntity> Set<TEntity>() where TEntity : class;
+
         IQueryable<Well> GetWellsForCompany(int idCompany);
         IQueryable<User> GetUsersByLogin(string login);
         (DateTime From, DateTime To) GetDatesRange<T>(int idTelemetry) where T : class, IIdTelemetryDate;
diff --git a/AsbCloudInfrastructure/Services/CrudService.cs b/AsbCloudInfrastructure/Services/CrudService.cs
index 6fb65bb7..257d8bb5 100644
--- a/AsbCloudInfrastructure/Services/CrudService.cs
+++ b/AsbCloudInfrastructure/Services/CrudService.cs
@@ -11,13 +11,12 @@ namespace AsbCloudInfrastructure.Services
         where TModel : class, AsbCloudDb.Model.IId
         where Tdto : AsbCloudApp.Data.IId
     {
-        private readonly DbContext context;
-        private readonly IAsbCloudDbContext db;
+        private readonly IAsbCloudDbContext context;
         private readonly DbSet<TModel> dbSet;
 
-        public CrudService(IAsbCloudDbContext db)
+        public CrudService(IAsbCloudDbContext context)
         {
-            this.db = db;
+            this.context = context;
             dbSet = context.Set<TModel>();
         }
 
@@ -44,7 +43,7 @@ namespace AsbCloudInfrastructure.Services
         {
             var newEntity = newItem.Adapt<TModel>();
             var dbEntity = dbSet.Add(newEntity);
-            db.SaveChanges();
+            context.SaveChanges();
             return dbEntity.Entity.Adapt<Tdto>();
         }
 
@@ -56,7 +55,7 @@ namespace AsbCloudInfrastructure.Services
             for (int i = 0; i < dbEntities.Length; i++)
                 dbEntities[i] = dbSet.Add(newEntities.ElementAt(i));
 
-            db.SaveChanges();
+            context.SaveChanges();
             return dbEntities.Select(e => e.Entity.Adapt<Tdto>());
         }
 
@@ -64,7 +63,7 @@ namespace AsbCloudInfrastructure.Services
         {
             var newEntity = item.Adapt<TModel>();
             var dbEntity = dbSet.Update(newEntity);
-            db.SaveChanges();
+            context.SaveChanges();
             return dbEntity.Entity.Adapt<Tdto>();
         }
 
@@ -74,7 +73,7 @@ namespace AsbCloudInfrastructure.Services
             if (entity == default)
                 return 0;
             dbSet.Remove(entity);
-            return db.SaveChanges();
+            return context.SaveChanges();
         }
     }