The Research of Data Transmission Technology in Measurement While Drilling
Jian Wang Hanyun Wen
(2018)
The Research of Data Transmission Technology in Measurement While Drilling: pp.
84-162.
Chapter 3 MUD PULSE TRANSMISSION TECHNOLOGY OF MWD
The following sections are included:
-
3.1. Drilling Fluid Pulse Transmission System
-
3.1.1. Positive Pulse System&&&
3.1.2. Negative Pulse System
-
3.1.3. Continuous Wave System
-
3.2. Transmission Characteristics of Drilling Fluid Pulse Signal
-
3.3. Transmission Characteristics of Continuous Wave Pressure Signal
-
3.3.1. Introduction of Continuous Wave Signal
-
3.3.2. Transmission Rate and Attenuation Model of Continuous Wave Signal
in Drill Pipe
-
3.3.3. Transmission Characteristics of Continuous Wave Signals Based on the
Theory of Transmission Line
-
3.4. Characteristics of Continuous Wave Noise and Design of Signal
-
3.4.1. Characteristics of Continuous Wave Noise
-
3.4.2. Modulation Form of Continuous Pressure Wave Signal
-
3.4.3. Simulation Example of Continuous Wave Pressure Signal
-
3.5. Continuous Wave Signal Processing Algorithm Based on Wavelet Transform
-
3.5.1. Characteristics of Downhole Random Signals of Continuous Wave
-
3.5.2. Parameter Estimation
-
3.5.3. Simulation and Conclusion
-
3.6. Compressive Sensing Based on Coding Method of MWD
-
3.6.1. Compression Sensing Theory and Characteristics
-
3.6.2. Channel Coding Method Based on Compression Sensing (CSCC)