Underground Wireless Communication and Information Processing

Dear Colleagues,

Petroleum, known as the "blood of industry", has led the revolution of production and created unprecedented achievements in civilization. Therefore, the exploration and exploitation of fossil fuel resources represented by petroleum is of great importance. Over the past 40 years, measure while drilling (MWD) technology has evolved from primitive to advanced, making remarkable progress, helping surface engineers make the right decisions, ensuring safety on drilling sites, improving efficiency, and reducing costs. However, faced with the increasing amount of underground data, the underground information transmission technology still faces many challenges, such as high bit error rate, insufficient information transmission rate, and serious signal distortion caused by specific complex environment. There are still a large number of problems to be studied and broken through.

In this Special Issue, we would like to invite domain experts to share the recent progress and original work in the research and implementation of underground wireless communication and information processing. The topics of interests include, but are not limited to, the following:

1. Underground wireless signals: such as electromagnetic wave, sound wave, mud pulse pressure wave, etc.;
2. Underground signal generator and control system: such as signal generation mechanism;
3. Efficient, advanced and novel underground data compression coding and modulation scheme;
4. Underground channel characteristics and modeling: such as channel attenuation, channel reflection, channel model construction, etc.;
5. Causes, effects and solutions of waveform distortion and inter-symbol interference of signals during channel transmission;
6. Channel noise characteristics and modeling;
7. Ground signal acquisition and detection;
8. Ground signal filtering and reconstruction: for example, efficient and advanced signal processing technology is adopted to filter noise and avoid attenuation of useful signals, so as to accurately reconstruct useful signals;
9. Efficient and advanced signal decoding, synchronization, equalization, demodulation scheme;
10. Efficient, advanced and easy to implement performance test scheme of MWD systems;
11. Software automation and intelligent program of MWD systems;
12. Hardware miniaturization and energy-saving schemes of MWD systems;
13. Underground wireless communication and information processing supported by emerging artificial intelligence technologies such as deep learning, cloud computing and Big Data;
14. Best practices and experience of intelligent logging and intelligent oilfield pilot projects.

Dr. Zhengguang Xu
Dr. Qing Chen
Guest Editors

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• measure while drilling
• underground information transmission
• underground channel modelling
• noise suppression
• signal modulation and demodulation