Bop monitoring-piston position measurement

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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.

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Bop monitoring-piston position measurement

  1. 1. BOP Ultrasonic Monitoring F.-M. Jäger IBJ Technology Colkwitzer Weg 7 04416 Markkleeberg Germany fmj@ibj-technology.com www.ibj-technology.com IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 1 (IBJ subsea piston position measurement)
  2. 2. Position measurement of hydraulic pistons IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 2 These piezoelectric elements are attached laterally on the hydraulic cylinder BOP Ultrasonic Monitoring
  3. 3. Area of the measurement IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 3BOP Ultrasonic Monitoring
  4. 4. Ultrasonic Signals-high frequency IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 4BOP Ultrasonic Monitoring Without piston - reflection
  5. 5. Ultrasonic Signals-high frequency IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 5BOP Ultrasonic Monitoring With 10% piston – small reflection
  6. 6. Measurement under the sensors IBJ TechnologyIBJ Technology Ingenieurbüro 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)
  7. 7. Waveform of the echos-analog IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 7BOP Ultrasonic Monitoring The amplitude of echoes without piston Analog amplitudes in the BOP demonstrator
  8. 8. Waveform of the echos-absolut IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 8BOP Ultrasonic Monitoring A-Scann Absolut without Filter, without piston Echo-Amplitudes in the BOP demonstrator
  9. 9. Waveform of the echos-absolut IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 9BOP Ultrasonic Monitoring A-Scann absolut without Filter, with piston Echo-Amplitudes in the BOP demonstrator
  10. 10. Measurement between the sensors IBJ TechnologyIBJ Technology Ingenieurbüro 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
  11. 11. Principle of the housing with 2 sensor Strips IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 12BOP Ultrasonic Monitoring
  12. 12. Measurement with redundant µP IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 12BOP Ultrasonic Monitoring 96 Modbus Interfaces 95 Processor 94 Filter /Reciver /Pulser 91 Sensorstrip A 92 Sensorstrip B
  13. 13. Measurement with high security IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 13BOP Ultrasonic Monitoring 16 Sensors 16 Transmitter 16 Receiver
  14. 14. Measurement with 2 processors IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 14BOP Ultrasonic Monitoring Processor 2 monitors processor 1, Processor 2 can replace 1
  15. 15. Measurement schematic IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 15BOP Ultrasonic Monitoring 2 Processor 2, 16 sensors, 16 transmitter, 16 receiver
  16. 16. Measurement signal flow IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 16BOP Ultrasonic Monitoring 2 Processor 2, 16 sensors, 16 transmitter, 16 receiver
  17. 17. Measurement of the accumulator IBJ TechnologyIBJ Technology Ingenieurbüro 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
  18. 18. Piston Position Software IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 18BOP Ultrasonic Monitoring For real BOP 2 sensorstrips with16 sensors
  19. 19. Real BOP Piston Position IBJ TechnologyIBJ Technology Ingenieurbüro JägerIngenieurbüro Jäger 19BOP Ultrasonic Monitoring For real BOP - 2 sensorstrips with16 sensors
  20. 20. BOP Piston Position Patent application IBJ TechnologyIBJ Technology Ingenieurbüro 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

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