This paper describes the use of the Field Signature Method (FSM) technology for monitoring internal corrosion on three pipelines located in the Gulf of Mexico. Two pipelines which carry sour gas from an offshore platform to a plant located on shore are monitored on both ends: topside on the platform end and at the plant entrance on the other end. The
third pipeline which contains produced water is monitored topside on the platform. The paper presents the results of monitoring the pipelines for three years and discusses the advantages of using such an on line system for internal corrosion monitoring of pipelines,
Keywords: corrosive gas, sour gas, internal corrosion monitoring, inhibition, on-line communication.