diff --git a/AsbCloudInfrastructure/Repository/CrudRepositoryBase.cs b/AsbCloudInfrastructure/Repository/CrudRepositoryBase.cs
index 944dabd5..80bc3a99 100644
--- a/AsbCloudInfrastructure/Repository/CrudRepositoryBase.cs
+++ b/AsbCloudInfrastructure/Repository/CrudRepositoryBase.cs
@@ -133,18 +133,22 @@ namespace AsbCloudInfrastructure.Repository
             if (ids.Length != dtos.Count())
                 throw new ArgumentInvalidException(nameof(dtos), "Все записи должны иметь уникальные Id");
             
-            var dbSet = dbContext.Set<TEntity>();
-            
-            var existingEntitiesCount = await dbSet
+            var existingEntitiesCount = await dbContext.Set<TEntity>()
                 .Where(o => ids.Contains(o.Id))
                 .CountAsync(token);
             
             if (ids.Length != existingEntitiesCount)
                 throw new ArgumentInvalidException(nameof(dtos), "Все записи должны существовать в БД");
+
+            var entities = dtos.Select(Convert);
             
-            var entities = dbContext.Set<TEntity>().Where(e => ids.Contains(e.Id));
-            dbContext.Set<TEntity>().UpdateRange(entities);
-            return await dbContext.SaveChangesAsync(token);
+            var entries = entities.Select(entity => dbContext.Set<TEntity>().Update(entity)).ToList();
+
+            var affected = await dbContext.SaveChangesAsync(token);
+            
+            entries.ForEach(entry => entry.State = EntityState.Detached);
+
+            return affected;
         }
 
         /// <inheritdoc/>
diff --git a/AsbCloudInfrastructure/Services/WellService.cs b/AsbCloudInfrastructure/Services/WellService.cs
index 795d944b..a10ff824 100644
--- a/AsbCloudInfrastructure/Services/WellService.cs
+++ b/AsbCloudInfrastructure/Services/WellService.cs
@@ -274,6 +274,7 @@ namespace AsbCloudInfrastructure.Services
                 dto.Timezone = GetTimezone(entity.Id);
                 
             dto.StartDate = dbContext.WellOperations.Where(e => e.IdType == WellOperation.IdOperationTypeFact)
+                .AsNoTracking()
                 .MinOrDefault(e => e.DateStart)?.ToRemoteDateTime(dto.Timezone.Hours);
             dto.WellType = entity.WellType.Caption;
             dto.Cluster = entity.Cluster.Caption;