Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal
Continuous wave mud pulse transmission is the most widely used information transmission technology in measurement while drilling (MWD). The increase in transmission distance will cause the signal attenuation and deformation during transmission, the affecting exploration efficiency. The waveform chan...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
|
| Series: | Alexandria Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016823007822 |
| _version_ | 1797665428675231744 |
|---|---|
| author | Jun Qu Qilong Xue Jintao Lu |
| author_facet | Jun Qu Qilong Xue Jintao Lu |
| author_sort | Jun Qu |
| collection | DOAJ |
| description | Continuous wave mud pulse transmission is the most widely used information transmission technology in measurement while drilling (MWD). The increase in transmission distance will cause the signal attenuation and deformation during transmission, the affecting exploration efficiency. The waveform change law of continuous mud pulse wave in the process of downhole transmission, this paper establishes a mathematical analysis model, focuses on the modulation form of continuous wave signal, physical mud characteristics, and drill pipe characteristics, and discusses the transmission rules of various characteristics on continuous pressure wave. A simulation system of drill pipe transmission pressure wave is constructed. The transmission characteristics of continuous wave signals under different modulation forms are discussed. The positive correlation between the amplitude attenuation and waveform distortion of pulse signals caused by increased gas holdup in the mud under bubbly flow patterns is analyzed. The numerical calculation and simulation analysis results show that the viscosity frequency characteristic of mud is the main factor affecting the attenuation of continuous wave signal. The surface roughness, size and other physical characteristics of drill pipe can affect the transmission speed and attenuation of signals in long-distance transmission. The signal is prone to distortion at the position of modulation phase change. |
| first_indexed | 2024-03-11T19:43:46Z |
| format | Article |
| id | doaj.art-b9a63ae5deb946ce8b8a43d37c0d3174 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-03-11T19:43:46Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-b9a63ae5deb946ce8b8a43d37c0d31742023-10-06T04:44:05ZengElsevierAlexandria Engineering Journal1110-01682023-10-0180594608Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signalJun Qu0Qilong Xue1Jintao Lu2School of Engineering and Technology, China University of Geosciences, Beijing 100083, ChinaCorresponding author.; School of Engineering and Technology, China University of Geosciences, Beijing 100083, ChinaSchool of Engineering and Technology, China University of Geosciences, Beijing 100083, ChinaContinuous wave mud pulse transmission is the most widely used information transmission technology in measurement while drilling (MWD). The increase in transmission distance will cause the signal attenuation and deformation during transmission, the affecting exploration efficiency. The waveform change law of continuous mud pulse wave in the process of downhole transmission, this paper establishes a mathematical analysis model, focuses on the modulation form of continuous wave signal, physical mud characteristics, and drill pipe characteristics, and discusses the transmission rules of various characteristics on continuous pressure wave. A simulation system of drill pipe transmission pressure wave is constructed. The transmission characteristics of continuous wave signals under different modulation forms are discussed. The positive correlation between the amplitude attenuation and waveform distortion of pulse signals caused by increased gas holdup in the mud under bubbly flow patterns is analyzed. The numerical calculation and simulation analysis results show that the viscosity frequency characteristic of mud is the main factor affecting the attenuation of continuous wave signal. The surface roughness, size and other physical characteristics of drill pipe can affect the transmission speed and attenuation of signals in long-distance transmission. The signal is prone to distortion at the position of modulation phase change.http://www.sciencedirect.com/science/article/pii/S1110016823007822Continuous wave mud signalLong distance transmission characteristicsSignal attenuationSignal waveform distortionSystem simulation |
| spellingShingle | Jun Qu Qilong Xue Jintao Lu Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal Alexandria Engineering Journal Continuous wave mud signal Long distance transmission characteristics Signal attenuation Signal waveform distortion System simulation |
| title | Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal |
| title_full | Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal |
| title_fullStr | Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal |
| title_full_unstemmed | Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal |
| title_short | Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal |
| title_sort | analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal |
| topic | Continuous wave mud signal Long distance transmission characteristics Signal attenuation Signal waveform distortion System simulation |
| url | http://www.sciencedirect.com/science/article/pii/S1110016823007822 |
| work_keys_str_mv | AT junqu analysisonthechangecharacteristicsofwaveformduringthetransmissionofcontinuouswavemudpulsesignal AT qilongxue analysisonthechangecharacteristicsofwaveformduringthetransmissionofcontinuouswavemudpulsesignal AT jintaolu analysisonthechangecharacteristicsofwaveformduringthetransmissionofcontinuouswavemudpulsesignal |