Title:
PUMP NOISE CANCELLATION METHOD USING EMPIRICAL MODE DECOMPOSITION AND PARTICLE SWARM OPTIMISATION ALGORITHM
Document Type and Number:
WIPO Patent Application WO/2020/078118
Kind Code:
A1
Abstract:
A pump noise cancellation method using empirical mode decomposition and a particle swarm optimisation algorithm, the method being based on the assumption that the pump noise is a linear combination of a set of bases; after extraction of pump noise samples, using empirical mode decomposition to decompose the extracted pump noise samples into a set of signals acting as bases; by means of a particle swarm optimisation algorithm, finding the coefficients of the best linear combination of said set of bases; and updating the pump noise samples to enhance the noise cancellation effect. The present invention corrects current pump noise samples in a weighted manner in a limited number of noise cancellation periods, gradually converging same into a pump noise waveform in a changed unit period in a limited number of iterations, in order to adapt to the slow change of the pump noise during long-term operation of the system.
Inventors:
QU FENGZHONG (CN)
JIANG QIN (CN)
ZHANG YUSEN (CN)
JIN GUOZHENG (CN)
ZHANG JINGCHEN (CN)
ZHANG ZHUJUN (CN)
WU YEZHOU (CN)
JIANG QIN (CN)
ZHANG YUSEN (CN)
JIN GUOZHENG (CN)
ZHANG JINGCHEN (CN)
ZHANG ZHUJUN (CN)
WU YEZHOU (CN)
Application Number:
PCT/CN2019/103602
Publication Date:
April 23, 2020
Filing Date:
August 30, 2019
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G06K9/00
Domestic Patent References:
| WO2016108912A1 | 2016-07-07 |
Foreign References:
| CN109522802A | 2019-03-26 | |||
| CN106089188A | 2016-11-09 | |||
| US20110012602A1 | 2011-01-20 | |||
| CN104133982A | 2014-11-05 | |||
| CN106321080A | 2017-01-11 |
Other References:
QU, FENGZHONG ET AL.: "Adaptive Dual-Sensor Noise Cancellation Method for Continuous Wave Mud Pulse Telemetry", JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, vol. 162, 31 March 2018 (2018-03-31), pages 386 - 393, XP055704211, DOI: 10.1016/j.petrol.2017.12.058
TU, BING ET AL.: "Research on MWD Mud Pulse Signal Extraction and Recognition", PROCEEDINGS OF THE 2011 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION, 15 August 2011 (2011-08-15), pages 2004 - 2008, XP032019874
ZHAO, JIANHUI ET AL.: "An Effective Approach for the Noise Removal of Mud Pulse Telemetry System", THE EIGHTH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT AND INSTRUMENTS, 22 October 2007 (2007-10-22), XP031148154
TU, BING ET AL.: "Research on MWD Mud Pulse Signal Extraction and Recognition", PROCEEDINGS OF THE 2011 IEEE INTERNATIONAL CONFERENCE ON MECHATRONICS AND AUTOMATION, 15 August 2011 (2011-08-15), pages 2004 - 2008, XP032019874
ZHAO, JIANHUI ET AL.: "An Effective Approach for the Noise Removal of Mud Pulse Telemetry System", THE EIGHTH INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT AND INSTRUMENTS, 22 October 2007 (2007-10-22), XP031148154
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO.,LTD. (CN)
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