Way Ahead In Corrosion Control

RetroBuoys inspected after 18 years

PRB 30127 Top Photo

Deepwater’s ICCP sled retrofit system continues to perform flawlessly after nearly 20 years.

Deepwater was contracted in 2024 to provide a survey and inspection of a platform that has been protected by a pair of RetroBuoys™ since 2006. The Gulf of Mexico platform, located in 420 feet of water about 75 miles south of the Mississippi / Alabama border, was outfitted with Deepwater's RetroBuoys™ when the original cathodic protection system began to fail. The RetroBuoys™ are powered by two 400A transformer/rectifiers that were part of the 2006 retrofit.

CP survey data potentials taken in 2024 show that all four of the platform’s legs continue to receive adequate protection; Leg A1: –1059 mV,  Leg A2: –1062, Leg B1: –1055, and Leg B2: –1053.

An inspection of the transformer/rectifiers also found them in good order, although oil levels were noted as being low.

PRB 30127 3 WEB

The transformer/rectifier during installation in 2006.

PRB 30127 6 WEB

The transformer/rectifiers before installation in 2006.

PRB 30127 7 WEB

The (TR1) transformer/rectifier examined during the 2024 inspection.

PRB 30127 8 WEB

The (TR2) transformer/rectifier during the 2024 inspection.

PRB 30127 5 WEB

The state-of-the-art 2006 RetroBuoy™ before installation.

PRB 30127 4 WEB

One of the TRs being lifted into place in 2006.

PRB 30127 1 WEB

One of the TRs being lifted into place in 2006.

PRB 30127 9 WEB

One of the TRs being lifted into place in 2006.

PRB 30127 2 WEB
PRB 30127 10 WEB
PRB 30127 11 WEB
PRB 30127 12 WEB