Case Study: The world’s first 25k psi BOP

In 2014 Premier Hytemp received a repeat order for subsea components for installation onto the Freeport McMoran development project ‘Davy Jones’ located in the Gulf of Mexico. The components were installed into a Cameron subsea BOP rated to 25k psi – a pressure rated not previously seen in the industry, or covered by the prevailing API specification. The field is a high pressure / high temperature field (HP/HT) that required upgrading of both the individual components and the BOP system as a whole. In doing so, API standard 53 and RP 17W had to be evolved in order to accommodate the higher pressure class.


The field was originally discovered by BP before being sold to Freeport McMoran as a ‘non-strategic’ asset. The well is considered to be ultra-deep at over 28,000 feet, resulting in the HP/HT nature of the process fluid. Cameron was subsequently requested to develop and qualify a BOP that was rated to the reservoir pressure. They proposed that Premier Hytemp be used as supplier of critical components including valve blocks, bonnets and adaptors, due to it’s having supplied comparable first article qualification status from similar projects including BP Bloc-31, Angola. First Article Inspection is a process by which the initial component of a series undergoes sacrificial testing under a Manufacture Process Specification (MPS), a rigorous inspection process that is normally associated with the more critical aspects of a system. Premier Hytemps longstanding history affords customers in the industry and extensive library of components that qualify for first article manufacture due to similarity with historical projects.