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EM&I launch new method for mooring chain inspections

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Oilfield Technology,

Mooring chains are a critical item on Floating Assets, with much emphasis being placed on their integrity by class societies and regulators following several failures in recent years.

Inspecting them has conventionally required divers to clean, inspect and measure the links, with all the associated costs and risk of putting people in hazardous areas. EM&I has developed a new approach using a specialised ROV equipped with a cleaning tool and a measuring calliper that can complete a class equivalent inspection in less time, at lower cost and improved safety.

The system was validated at EM&I’s Technology Centre facility in Cumbria earlier this year, witnessed by all the major class societies, who have now written letters of acceptance for the system.

The first site application was on an FPSO in Angola where the job was completed in just four working days by a 4-man team. This represents a saving in time and cost of over 70%.

According to Pat Lawless (Group CEO) of EM&I: “Despite adverse weather conditions the work was completed to the complete satisfaction of the asset operator and the class society surveyor. This is a significant success and opens up many opportunities that will benefit our clients worldwide”.

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