Ultrasonic BOP Position Monitoring via Acoustic Reflection

The patent replaces complex mechanical position monitoring mechanisms with an acoustic wave-based detection system. An ultrasonic transceiver emits acoustic waves that travel through the drilling fluid to reflect off movable components (rams, actuators), and the reflected waves are detected to determine position. This substitution eliminates the need for direct mechanical contact sensors while achieving precise position monitoring through acoustic properties of the fluid medium.

The patent introduces acoustic waves as an intermediary medium to transmit position information from movable components to the detection system. The ultrasonic waves serve as a carrier that interacts with the movable components and conveys their position data back to the monitoring system without requiring direct physical connection or complex mechanical linkages.

The ultrasonic transceiver performs multiple functions: it acts as both the acoustic wave source and the detection sensor, integrates position monitoring with the existing drilling fluid medium, and can potentially monitor multiple movable components simultaneously. The channel structure serves dual purposes as both a physical pathway for acoustic waves and a protective enclosure for the transceiver components.

The drilling fluid medium itself serves as the transmission medium for acoustic waves, eliminating the need for separate wiring or mechanical linkages. The movable components (rams, actuators) naturally reflect the acoustic waves due to their physical presence in the fluid, requiring no additional markers or active sensors attached to them. The system utilizes the existing operational environment rather than requiring separate dedicated infrastructure.