Active damping control of a wellbore logging tool
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01V-001/40
E21B-047/14
E21B-049/00
G01V-001/52
출원번호
US-0913924
(2014-08-07)
등록번호
US-9739903
(2017-08-22)
국제출원번호
PCT/US2014/050199
(2014-08-07)
국제공개번호
WO2016/022134
(2016-02-11)
발명자
/ 주소
Song, Xingyong
Zhao, Yiming
Dykstra, Jason D.
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Fite, Benjamin
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
Systems and methods for actively controlling the damping of a wellbore logging tool are disclosed herein. A wellbore logging tool system comprises a processor, a memory, a wellbore logging tool comprising an acoustic transmitter, and a logging tool control module. The logging tool control module is
Systems and methods for actively controlling the damping of a wellbore logging tool are disclosed herein. A wellbore logging tool system comprises a processor, a memory, a wellbore logging tool comprising an acoustic transmitter, and a logging tool control module. The logging tool control module is operable to receive sensor signals from one or more sensors coupled to the wellbore logging tool after an actuation control signal has been transmitted to the acoustic transmitter and determine, using the received sensor signals, one or more current dynamic states of the acoustic transmitter. The logging tool control module is also operable to determine a damping control signal based on the one or more current dynamic states of the acoustic transmitter and transmit the damping control signal to the acoustic transmitter of the wellbore logging tool.
대표청구항▼
1. A wellbore logging tool system, comprising: a processor;a memory;a wellbore logging tool comprising an acoustic transmitter; anda logging tool control module operable to: receive sensor signals from one or more sensors coupled to a wellbore logging tool after an actuation control signal has been
1. A wellbore logging tool system, comprising: a processor;a memory;a wellbore logging tool comprising an acoustic transmitter; anda logging tool control module operable to: receive sensor signals from one or more sensors coupled to a wellbore logging tool after an actuation control signal has been transmitted to the acoustic transmitter;determine, using the received sensor signals, one or more current dynamic states of the acoustic transmitter;determine a damping control signal based on the one or more current dynamic states of the acoustic transmitter; andtransmit the damping control signal to the acoustic transmitter, wherein the logging tool control module is further operable to determine the damping control signal by minimizing a cost function using the current dynamic states. 2. The system of claim 1, wherein terms of the cost function comprise weighting functions, and the logging tool control module is further operable to determine the weighting functions using an amplitude of ringing in the acoustic transmitter and a duration of ringing in the acoustic transmitter. 3. The system of claim 1, wherein the cost function to be minimized represents a duration of ringing in the acoustic transmitter. 4. The system of claim 1, wherein the cost function to be minimized represents a magnitude of ringing in the acoustic transmitter. 5. The system of claim 1, wherein the cost function to be minimized represents a peak amplitude of the damping control signal. 6. The system of claim 1, wherein the cost function to be minimized represents an amount of energy in the acoustic transmitter. 7. The system of claim 1, wherein the logging tool control module is further operable to determine a first set of future dynamic states of the acoustic transmitter using the current dynamic states. 8. The system of claim 7, wherein the logging tool control module is further operable to modify the damping control signal by minimizing a cost function using the determined first set of future dynamic states. 9. The system of claim 8, wherein the logging tool control module is further operable to determine a second set of future dynamic states of the acoustic transmitter using the determined first set of future dynamic states. 10. The system of claim 9, wherein the logging tool control module is further operable to modify the damping control signal by minimizing a cost function using the determined second set of future dynamic states. 11. The system of claim 1, wherein the one or more current dynamic states of the acoustic transmitter of the wellbore logging tool comprise one or more of the following: a velocity of the acoustic transmitter, an acceleration of the acoustic transmitter, a temperature of the acoustic transmitter, a pressure in the acoustic transmitter, a measure of deformation in the acoustic transmitter, a voltage transmitted to the acoustic transmitter, or a current transmitted to the acoustic transmitter. 12. The system of claim 11, wherein the logging tool control module is further operable to determine a first set of future dynamic states of the acoustic transmitter using the current dynamic states. 13. The system of claim 12, wherein the logging tool control module is further operable to modify the damping control signal by minimizing a cost function using the determined first set of future dynamic states. 14. The system of claim 13, wherein the logging tool control module is further operable to determine a second set of future dynamic states of the acoustic transmitter using the determined first set of future dynamic states. 15. The system of claim 14, wherein the logging tool control module is further operable to modify the damping control signal by minimizing a cost function using the determined second set of future dynamic states. 16. A method for actively damping vibrations in a wellbore logging tool, comprising: receiving sensor signals from one or more sensors coupled to a wellbore logging tool after an actuation control signal has been transmitted to an acoustic transmitter of the wellbore logging tool;determining, using the received sensor signals, one or more current dynamic states of the acoustic transmitter;determining a damping control signal based on the one or more current dynamic states of the acoustic transmitter; andtransmitting the damping control signal to the acoustic transmitter of the wellbore logging tool, wherein determining the damping control signal comprises minimizing a cost function using the current dynamic states. 17. The method of claim 16, wherein terms of the cost function comprise weighting functions, and the method further comprises determining the weighting functions using an amplitude of ringing in the acoustic transmitter and a duration of ringing in the acoustic transmitter. 18. The method of claim 6, wherein the cost function to be minimized represents a duration of ringing in the acoustic transmitter. 19. The method of claim 6, wherein the cost function to be minimized represents a magnitude of ringing in the acoustic transmitter. 20. The method of claim 6, wherein the cost function to be minimized represents a peak amplitude of the damping control signal. 21. The method of claim 6, wherein the cost function to be minimized represents an amount of energy in the acoustic transmitter. 22. The method of claim 16, further comprising determining a first set of future dynamic states of the acoustic transmitter using the current dynamic states. 23. The method of claim 22, further comprising modifying the damping control signal by minimizing a cost function using the determined first set of future dynamic states. 24. The method of claim 23, further comprising determining a second set of future dynamic states of the acoustic transmitter using the determined first set of future dynamic states. 25. The system of claim 24, further comprising modifying the damping control signal by minimizing a cost function using the determined second set of future dynamic states. 26. The method of claim 16, wherein the one or more current dynamic states of the acoustic transmitter of the wellbore logging tool comprise one or more of the following: a velocity of the acoustic transmitter, an acceleration of the acoustic transmitter, a temperature of the acoustic transmitter, a pressure in the acoustic transmitter, a measure of deformation in the acoustic transmitter, a voltage transmitted to the acoustic transmitter, or a current transmitted to the acoustic transmitter. 27. The method of claim 26, further comprising determining a first set of future dynamic states of the acoustic transmitter using the current dynamic states. 28. The method of claim 27, further comprising modifying the damping control signal by minimizing a cost function using the determined first set of future dynamic states. 29. The method of claim 28, further comprising determining a second set of future dynamic states of the acoustic transmitter using the determined first set of future dynamic states. 30. The system of claim 29, further comprising modifying the damping control signal by minimizing a cost function using the determined second set of future dynamic states. 31. A computer-readable medium comprising instructions that, when executed by a processor, cause the processor to: receive sensor signals from one or more sensors coupled to a wellbore logging tool after an actuation control signal has been transmitted to an acoustic transmitter of the wellbore logging tool;determine, using received sensor signals, one or more current dynamic states of the acoustic transmitter;determine a damping control signal based on the one or more current dynamic states of the acoustic transmitter; andtransmit the damping control signal to the acoustic transmitter of the wellbore logging tool, wherein the instructions that cause the processor to determine the damping control signal comprise instructions that cause the processor to minimize a cost function using the current dynamic states. 32. The computer-readable medium of claim 31, wherein terms of the cost function comprise weighting functions, and the computer-readable medium further comprises instructions that, when executed by the processor, cause the processor to determine the weighting functions using an amplitude of ringing in the acoustic transmitter and a duration of ringing in the acoustic transmitter. 33. The computer-readable medium of claim 31, wherein the cost function to be minimized represents a duration of ringing in the acoustic transmitter. 34. The computer-readable medium of claim 31, wherein the cost function to be minimized represents a magnitude of ringing in the acoustic transmitter. 35. The computer-readable medium of claim 31, wherein the cost function to be minimized represents a peak amplitude of the damping control signal. 36. The computer-readable medium of claim 31, wherein the cost function to be minimized represents an amount of energy in the acoustic transmitter. 37. The computer-readable medium of claim 31, further comprising instructions that cause a processor to determine a first set of future dynamic states of the acoustic transmitter using the current dynamic states. 38. The computer-readable medium of claim 37, further comprising instructions that cause a processor to modify the damping control signal by minimizing a cost function using the determined first set of future dynamic states. 39. The computer-readable medium of claim 38, further comprising instructions that cause a processor to determine a second set of future dynamic states of the acoustic transmitter using the determined first set of future dynamic states. 40. The computer-readable medium of claim 39, further comprising instructions that cause a processor to modify the damping control signal by minimizing a cost function using the determined second set of future dynamic states. 41. The computer-readable medium of claim 31, wherein the one or more current dynamic states of the acoustic transmitter of the wellbore logging tool comprise one or more of the following: a velocity of the acoustic transmitter, an acceleration of the acoustic transmitter, a temperature of the acoustic transmitter, a pressure in the acoustic transmitter, a measure of deformation in the acoustic transmitter, a voltage transmitted to the acoustic transmitter, or a current transmitted to the acoustic transmitter. 42. The computer-readable medium of claim 41, further comprising instructions that cause a processor to determine a first set of future dynamic states of the acoustic transmitter using the current dynamic states. 43. The computer-readable medium of claim 42, further comprising instructions that cause a processor to modify the damping control signal by minimizing a cost function using the determined first set of future dynamic states. 44. The computer-readable medium of claim 43, further comprising instructions that cause a processor to determine a second set of future dynamic states of the acoustic transmitter using the determined first set of future dynamic states. 45. The computer-readable medium of claim 44, further comprising instructions that cause a processor to modify the damping control signal by minimizing a cost function using the determined second set of future dynamic states.
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