Horizontal 15,000 psi electrical instrumentation feedthrough system developed for deployment in the US Gulf of Mexico

Tronic Ltd, a subsidiary of international oilfield services company Expro International Group PLC, has successfully completed a new electrical instrumentation feedthrough system for the world's first 15,000 psi horizontal subsea tree. Specifically designed for the Conger Field in the Gulf of Mexico, the 15,000 psi electrical instrumentation feedthrough system is due for deployment in August 2000.

Manufactured from enhanced materials, the subsea electrical feedthrough system has been designed to carry a signal from a DHPTT (downhole pressure and temperature transducer) at the bottom of the wellbore, up through the tubing hanger tree block and into the subsea electrical penetrator. The system also provides a dedicated earth for the gauge signal.

The feedthrough system utilizes high integrity components comprising a dry-mate plug and receptacle connection; a wet-mate plug and receptacle connection and an internal penetrator. The system's wet-mate single pin connector pair allows for connection and reconnection of the system when necessary.

The Tronic feedthrough system provides high integrity sealing. Consistent mating is also ensured due to the wet mateable plug connector allowing for significant levels of misalignment.

Edited by Dev George
Managing Editor, Oil and Gas Online