Study on model-based pump noise suppression method of mud pulse signal

Guo, Chen; Yan, Zhidan; Gao, Tingzheng; Sun, Hehui; Li, Guolin; Wang, Junfei

doi:10.1016/j.petrol.2021.108433

Cited by 13 publications

(2 citation statements)

References 16 publications

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“…Yang et al [57] attempted to estimate the channel impulse response function of the pump stroke signal using the coherent accumulation method and established a Longuet-Higgins probability distribution for the pump stroke frequency to model the pump noise using statistical methods. Chen et al [58] constructed three pump noise models applicable to ordinary n-cylinder mud pumps under normal operation: linear time-invariant, linear time-varying, and nonlinear models. The energy of the pump noise is relatively high, causing the mud pulse signal to be submerged in the pump noise.…”

Section: Noise Analysismentioning

confidence: 99%

“…The feasibility of the proposed high-data-rate mud pulse system was verified via field experiments. Aiming at the random noise in the reconstructed mud pulse signal, Chen et al [58] proposed a wavelet threshold denoising method based on a new power threshold function. Simulation results showed that combining the standard Kalman filtering method with the power wavelet denoising algorithm achieved optimal overall performance for a linear time-invariant pump noise model.…”

Section: Wavelet Transformmentioning

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: Noise Analysismentioning

confidence: 99%

Section: Wavelet Transformmentioning

confidence: 99%