Measurement While Drilling (Mwd) Signal

Chin and engineers at the China National Petroleum Corporation document in detail the company's engineering processes, new tools, and well logging sensors in a comprehensive collection of laboratory and field photographs. They also provide recent paper abstracts and describe advanced sensor development activities relating to measuring-while-drilling engineering in China. Among the topics are harmonic analysis: six-segment downhole acoustic waveguide, transient constant area surface and downhole wave models, signal processor design and additional noise models, downhole turbine design and short wind tunnel testing, and siren design and evaluation in mud flow loops and wind tunnels. Annotation c2014 Ringgold, Inc., Portland, OR (protoview.com)

Wilson Chin earned his PhD at the Massachusetts Institute of Technology and his MSc at the California Institute of Technology. His work in fluid mechanics, electromagnetics, formation testing, and reservoir characterization forms the basis for ten research monographs, about one hundred papers, and almost fifty domestic and international patents. Wilson’s current interests address high speed mud pulse telemetry and advanced resistivity logging concepts.

Yinao Su, an academician of the Chinese Academy of Engineering, is affiliated with China National Petroleum Corporation (CNPC) in Beijing, where he directs its MWD program. He is an expert in control theory and leads a new research endeavor known as “Downhole Control Engineering.” Professor Su holds over thirty patents, has authored numerous books and more than two hundred papers.

Limin Sheng is Senior Technical Expert and Department Head in oil and gas drilling engineering at the CNPC Drilling Research Institute. He has more than twenty-five years of experience in research and development focusing on MWD and downhole control engineering applications, holds more than twenty patents, and has published over two dozen papers.

Lin Li is Manager of the Downhole Control Engineering Research Institute, a laboratory for downhole information transmission at CNPC in Beijing. He holds joint positions as Senior Engineer and Director, Continuous Wave MWD and Electromagnetic MWD Projects. Li is also a key contributor to CNPC’s geosteering project efforts.

Hailong Bian earned his doctorate from the University of Electronics Science and Technology in China. He works as a Postdoctoral Fellow and engineer at the CNPC Downhole Control Engineering Research Institute. He is the lead technical focal point on CNPC’s high-priority continuous wave MWD mud pulse telemetry project.

Rong Shi is an engineer with the CNPC Downhole Control Engineering Research Institute. Shi, a key technical contributor to the continuous wave telemetry project, specializes in mechanical design and data acquisition.