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BOPUltrasonic Monitoring
F.-M. JägerIBJ Technology
Colkwitzer Weg 704416 Markkleeberg
Germany
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 1
(IBJ subsea piston position measurement)
Position measurement of hydraulic pistons
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 2
These piezoelectric elements are attached laterally on the hydraulic cylinder
BOP Ultrasonic Monitoring
Area of the measurement
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 3BOP Ultrasonic Monitoring
Ultrasonic Signals-high frequency
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 4BOP Ultrasonic Monitoring
Without piston - reflection
Ultrasonic Signals-high frequency
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 5BOP Ultrasonic Monitoring
With 10% piston – small reflection
Measurement under the sensors
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 6BOP Ultrasonic Monitoring
The amplitude of echoes is inversely proportional to the surface of the piston
Without piston (0 % piston) With piston (100 % piston)
Waveform of the echos-analog
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 7BOP Ultrasonic Monitoring
The amplitude of echoes without piston
Analog amplitudes in the BOP demonstrator
Waveform of the echos-absolut
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 8BOP Ultrasonic Monitoring
A-Scann Absolut without Filter, without piston
Echo-Amplitudes in the BOP demonstrator
Measurement signal flow
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 16BOP Ultrasonic Monitoring
2 Processor 2, 16 sensors, 16 transmitter, 16 receiver
Measurement between the sensors
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 10BOP Ultrasonic Monitoring
The amplitude of echoes is inversely proportional to the surface of the piston
With 70 % pistonWith 20 % piston With 50 % piston
Amplitudes in the demonstrator hydraulic accumulator
Principle of the housing with
2 sensor Strips
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 12BOP Ultrasonic Monitoring
Measurement with redundant µP
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 12BOP Ultrasonic Monitoring
96 Modbus Interfaces 95 Processor94 Filter /Reciver /Pulser91 Sensorstrip A92 Sensorstrip B
Measurement with high security
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 13BOP Ultrasonic Monitoring
16 Sensors16 Transmitter16 Receiver
Measurement with 2 processors
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 14BOP Ultrasonic Monitoring
Processor 2 monitors processor 1, Processor 2 can replace 1
Measurement schematic
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 15BOP Ultrasonic Monitoring
2 Processor 2, 16 sensors, 16 transmitter, 16 receiver
Waveform of the echos-absolut
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 9BOP Ultrasonic Monitoring
A-Scann absolut without Filter, with piston
Echo-Amplitudes in the BOP demonstrator
Measurement of the accumulator
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 17BOP Ultrasonic Monitoring
For 1.2 m 6 sensorstrips and 3 processor units
The reflection on the wall is better than on the piston rod
Piston Position Software
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 18BOP Ultrasonic Monitoring
For real BOP2 sensorstrips with16 sensors
Real BOP Piston Position
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 19BOP Ultrasonic Monitoring
For real BOP - 2 sensorstrips with16 sensors
BOP Piston Position Patent application
IBJ TechnologyIBJ TechnologyIngenieurbüro JägerIngenieurbüro Jäger 20BOP Ultrasonic Monitoring
Device for measuring function of blowout preventers, has parallel lines of ultrasonic sensors that are connected with burst transmission unit and booster assembly, where output signals are supplied to output signal amplitude comparison unit