Patent ID: 11873694
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A system for monitoring subsea drilling operations, comprising:
a controller including a processor and a memory operably coupled to the processor, the controller located subsea and configured to:
receive, from one or more motion reference units operably coupled to a flexible joint, angular position or orientation data generated by the one or more motion references units and associated with the flexible joint when the flexible joint is operably coupled to and disposed between a drilling riser and a lower marine riser package (LMRP), wherein the angular position or orientation data includes the angular position or inclination of the lower drilling riser above the flexible joint and the angular position or inclination of the LMRP below the flexible joint;
determine, based on the angular position or inclination of the lower drilling riser above the flexible joint and the angular position or inclination of the LMRP below the flexible joint an angle of operation of the flexible joint;
determine whether the angle of operation, the angular position or inclination of the lower drilling riser above the flexible joint, or the angular position or inclination of the LMRP below the flexible joint exceeds a predetermined threshold; and
generate a trigger signal in response to determining that the angle of operation, the angular position or inclination of the lower drilling riser above the flexible joint, or the angular position or inclination of the LMRP below the flexible joint exceeds a predetermined threshold.