DNV GL shows new way to help decide when to retrieve a BOP

Offshore staff

HOUSTONDNV GL has introduced a real-time, risk-informed BOP retrieval decision support tool to help determine when to retrieve a BOP for repair.

The BOP-RDT tool is designed to reduce the degree of subjectivity involved in the decision. Using deterministic criteria, DNV GL said the BOP-RDT applies a detailed qualitative method to help guide decision-making. This is entirely based on the losses of redundancy resulting from the impact of detected failures on the reliability of all BOP critical safety functions included in the tool.

“Any failure in a BOP during drilling is undoubtedly a cause for concern,” said Luiz Fernando Oliveira, tool developer, and manager at DNV GL’s R&D Center in Rio de Janeiro.

“However, not all component failures are equally significant. Though some may lead to the total loss of a BOP critical safety function, others may have no impact on its continued safe use. Therefore, it is important to determine as concisely as possible when to leave it alone or retrieve it for immediate repair.

“This tool reduces uncertainty and improves decision-making on individual cases, ultimately saving on the costly implications of downtime during drilling.”


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