Threaded connection for pipes of oil fields and method of treatment of threaded connection

摘要

Threaded connection for pipes of oil fields and method of treatment of threaded connection.A method of treatment of a threaded connection, which includes determining a processing time sufficient to form a thickness of a coating of hopeu00edta, coating at least a portion of the threaded connection (3, 4) with phosphating compound, for a period of time sufficient to fo It is the thickness of the coating hopeu00edta, is described.