The maintenance of blowout preventers (BOPs) has significant financial, logistical and safety implications for drilling operators and rig owners. DNV GL has now established a Joint Industry Project (JIP) to develop a risk-based maintenance methodology with the aim to deliver more effective and cost-efficient BOP maintenance. Several BOP manufacturers, operators, rig owners and shelf state regulators have already joined the JIP, and others may still come on board.
BOPs have traditionally been subject to time-based maintenance, which can create critical challenges, such as unstructured maintenance management, reduced reliability and equipment overhauls, which consequently may lead to increased operational downtime.
“A risk-based maintenance approach aims to mitigate these issues,” says Rui Quadrado, project manager at DNV GL Oil & Gas. “Benefits include increased safety and operability by improving BOP performance, the introduction of lifecycle design input and increased maintainability. Ultimately, this should deliver optimal maintenance planning, thereby reducing costs.”