Results 241 to 250 of about 1,642,785 (302)
Some of the next articles are maybe not open access.
Research on MWD Mud Pulse Signal Extraction Algorithm
Advanced Materials Research, 2014The extraction and correct recognition of mud pulse signal in Wireless Measurement While Drilling was a key technology in petroleum drilling process. It determined whether the well course in the petroleum drilling process was right or not. This article has carried out the numerical modeling of mud pulse signal and illustrated its signal feature.
Guo Yun Zhang, Bing Tu
exaly +2 more sources
Research on mud pulse signal detection based on adaptive stochastic resonance
Journal of Petroleum Science and Engineering, 2017Abstract The original data signals have small amplitude with a long distance signal transmission from the underground to the ground. And thousands of meters of drilling mud channel in the drilling process will contain a lot of noise sources. Therefore, the original mud pulse signals are submerged by the complex noise environment.
Shanshan Lv
exaly +2 more sources
A novel method to improve mud pulse telemetry performance during gaseated underbalanced drilling
Journal of Petroleum Science and Engineering, 2022Hongtao Li +2 more
exaly +2 more sources
Newtonized sparse channel estimation for mud pulse telemetry
Geoenergy Science and EngineeringZitong Sha +7 more
openaire +2 more sources
Soft Decision Decoding in Mud Pulse Telemetry System
2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020In this paper, we propose a new probabilistic decoding method for the measurement-while-drilling telemetry system. The mud pulse telemetry system transmits the data from inside a borehole to the surface during drilling operations. The mud pulser is equipped with a mechanical valve, which partly shuts the mud stream for a short time, realizing ...
Andrey Ivanov 0001 +3 more
openaire +1 more source
AEU - International Journal of Electronics and Communications
Yanfeng Geng +2 more
exaly +2 more sources
Yanfeng Geng +2 more
exaly +2 more sources
Journal of Petroleum Technology, 1981
Summary Measurement-while-drilling (MWD) systems, using mud pulse telemetry, are now available to the industry. The most popular sensor package is for directional drilling measurements. Accuracy of such measurements has been proved under field conditions and has resulted in considerable savings in rig time.
Marvin Gearhart +2 more
openaire +1 more source
Summary Measurement-while-drilling (MWD) systems, using mud pulse telemetry, are now available to the industry. The most popular sensor package is for directional drilling measurements. Accuracy of such measurements has been proved under field conditions and has resulted in considerable savings in rig time.
Marvin Gearhart +2 more
openaire +1 more source
Study on the continuous wave bit reflection mechanism in mud pulse telemetry
Geoenergy Science and EngineeringHu Han +4 more
openaire +2 more sources
Channel Equalizer Design for Continuous Wave Mud Pulse Based on OS-ELM
Cybersecurity and Cyberforensics Conference, 2023Mud pulse transmission technology is one of the core technologies for measurement while drilling. In the process of continuous wave mud pulse signal up to the ground, there will be large amplitude attenuation and inter-code interference caused by the ...
Junkai Wang +3 more
semanticscholar +1 more source

