diff --git a/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationExportService.cs b/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationExportService.cs
index a94726c1..b70f8cd4 100644
--- a/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationExportService.cs
+++ b/AsbCloudInfrastructure/Services/DetectOperations/DetectedOperationExportService.cs
@@ -12,6 +12,7 @@ using AsbCloudApp.Data.DetectedOperation;
 using AsbCloudInfrastructure.Services.DetectOperations.Detectors;
 using AsbCloudApp.Repositories;
 using Microsoft.AspNetCore.Http.Extensions;
+using AsbCloudApp.Exceptions;
 
 namespace AsbCloudInfrastructure.Services.DetectOperations;
 
@@ -57,21 +58,21 @@ public class DetectedOperationExportService
     /// <param name="host">хост</param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    /// <exception cref="ArgumentNullException"></exception>
+    /// <exception cref="ArgumentInvalidException"></exception>
     public async Task<Stream> ExportAsync(int idWell, string host, CancellationToken cancellationToken)
 	{
-		var well = await dbContext.Wells
+		var well = await dbContext.Set<Well>()
 			.Include(w => w.Cluster)
 			.ThenInclude(c => c.Deposit)
-			.SingleOrDefaultAsync(w => w.Id == idWell, cancellationToken);
+			.FirstOrDefaultAsync(w => w.Id == idWell, cancellationToken);
 
 		if (well is null)
-			throw new ArgumentNullException(nameof(well));
+			throw new ArgumentInvalidException(nameof(idWell), $"Well {idWell} does not exist");
 
 		if (!well.IdTelemetry.HasValue)
-			throw new ArgumentNullException(nameof(well));
+            throw new ArgumentInvalidException(nameof(idWell), $"Well {idWell} has no telemetry");
 
-		var operations = await DetectOperationsAsync(well.IdTelemetry.Value, DateTime.UnixEpoch, cancellationToken);
+        var operations = await DetectOperationsAsync(well.IdTelemetry.Value, DateTime.UnixEpoch, cancellationToken);
 
 		return await GenerateExcelFileStreamAsync(well, host, operations, cancellationToken);
 	}