A pressure pulse recognition method based on flow-adaptive double threshold for pressure pulse telemetry

Hua, Chenquan; Wu, Bingxuan; Li, Bin; Hua, Xuanye; Geng, Yanfeng

doi:10.1016/j.petrol.2022.111158

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…This approach achieved a high transmission rate, but the complexity of the coding scheme made detection challenging. Hua et al [29] used combination codes to encode data based on the characteristics of pressure pulse transmission, which can obtain shorter transmission times and higher fault tolerance. However, combination codes have higher complexity compared with other coding methods, making the decoding process more intricate.…”

Section: Coding and Modulation Of The Mud Pulse Signalmentioning

confidence: 99%

“…Therefore, in order to increase the confidence of the decoding results, an adaptive modulation threshold is adjusted based on the actual signal. Hua et al [29] proposed an adaptive dual-threshold method for mud pulse recognition. This method sets a small fixed threshold value and a dynamically adjusted adaptive threshold value.…”

Section: Synchronization and Decodingmentioning

confidence: 99%

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A Review of Communication Technologies in Mud Pulse Telemetry Systems

Li,

2023

Electronics

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Mastering real-time and accurate downhole information is crucial for ensuring drilling safety, improving drilling efficiency, and maximizing economic benefits. In recent years, logging while drilling (LWD) technologies, represented by mud pulse telemetry (MPT), achieved significant success. However, they still face challenges such as a large amount of downhole information conflicting with low information transmission rates, severe channel distortion, strong noise interference, and weak surface receiving signals. Therefore, this review collects and updates the papers, patents, and conference articles in the relevant field over the past ten years. Starting from the basic structure of communication systems, the downhole signal coding and modulation technologies of the MPT system are discussed. The attenuation reflection brought by the mud channel and various noise interferences in the system are described. The surface noise cancellation, channel equalization, synchronization, and decoding are studied in detail. By analyzing the theoretical principles, development breakthroughs, and relevant challenges that can improve the development of LWD technologies, this review aims to assist researchers in the field in obtaining the latest references and strategies.

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Section: Coding and Modulation Of The Mud Pulse Signalmentioning

confidence: 99%

Section: Synchronization and Decodingmentioning

confidence: 99%

A Review of Communication Technologies in Mud Pulse Telemetry Systems

Li,

2023

Electronics

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“…In the wireless layered water injection system, intelligent instruments must placed downhole for an extended period. Therefore, the control of power consumption directly affects the stability and life of the instrument [ 3 , 4 ]. Guo et al proposed a novel turbine permanent magnet generator, which can reduce the motor volume and improve the power generation efficiency and power density [ 5 ].…”

Section: Introductionmentioning

confidence: 99%