Results 271 to 280 of about 1,642,785 (302)
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Transmission Behavior of Mud-Pressure Pulse Along Well Bore
Journal of Hydrodynamics, 2007In oil and gas industry, mud-pulse telemetry has been widely used to obtain directional data, drilling parameters, formation evaluation data and safety data, etc. Generally, the drilling mud in most current models was considered to be a single-phase fluid through which the mud pulses travel, despite the fact that the drilling mud is composed of two or ...
Xiu-shan Liu, Bo Li, Yu-quan Yue
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Continuous Wave Mud Pulse Signal Denoising via Kalman Filter Based on Expectation Maximization
Proceedings of the 2024 2nd International Conference on Frontiers of Intelligent Manufacturing and AutomationContinuous wave mud pulse transmission system is widely exploited in the field of measurement while drilling for its prompt data transmission and good anti-interference ability.
Zeyu Xu, Li Sheng, Yang Feng
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Research on MWD Mud Pulse Signal Waveform Identification Algorithm
Applied Mechanics and Materials, 2014Measurement while drilling (MWD) technology uses mud pulse signals in real-time observation bottom of the relevant data, the decoding system on earth will detect and recognize the information received from the shaft bottom. It is one of the core technology of MWD.
Bing Tu, Guo Yu, Teng Xi Zhan
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Memoryless Continuous-Phase Chirp Spread Spectrum for Mud Pulse Telemetry
2024 7th International Conference on Information Communication and Signal Processing (ICICSP)Measurement while drilling (MWD) is essential for advancing deepwater oil and gas exploration, with mud pulse telemetry (MPT) standing out for its broad applicability and reliability.
Jiaxun Lu +5 more
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EM pulse borehole imaging system for oil based mud
2010 IEEE Antennas and Propagation Society International Symposium, 2010Borehole imaging system is used to collect well-bore information in an azimuthal range of 360 degree, which helps people define the characterize features such as fractures and folds[1]. Historically, acquiring borehole image logs of useable resolution have been difficult[2] expecially in the non-conductive oil based mud systems because the measurement ...
null Chen Guo, R C Liu
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24th International Conference on Sound and Vibration 2017, London Calling
In oil and gas drilling engineering, the drilling tool is driven into the earth from a drilling rig to create a wellbore through which hydrocarbons are passed.
W. Gao +5 more
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In oil and gas drilling engineering, the drilling tool is driven into the earth from a drilling rig to create a wellbore through which hydrocarbons are passed.
W. Gao +5 more
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An Effective Approach for the Noise Removal of Mud Pulse Telemetry System
2007 8th International Conference on Electronic Measurement and Instruments, 2007Mud pulse telemetry is a method used for measurement-while-drilling (MWD) in the oil industry. Information (tool-face orientation, temperature, pressure etc.) which is modulated by means of pulse positioning modulation (PPM) is sent from the bottom of the well to the surface by means of pressure waves in the drilling fluid (the drilling mud).
Zhao Jianhui +3 more
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A Borehole Imaging Method Using Electromagnetic Short Pulse in Oil-Based Mud
IEEE Geoscience and Remote Sensing Letters, 2010A borehole imaging method for nonconductive fluid application using a high-frequency electromagnetic (EM) short pulse is introduced in this letter. The pulsed borehole imaging system offers more advantages when compared with conventional dielectric or resistivity imaging tools.
Chen Guo 0002, Richard C. Liu
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On Methods of Advancing the Efficiency of Data Transmission of Mud Pulse Downhole Telemetry Systems
Вестник Пермского университета. ГеологияDue to the growth of the share of hard-to-recover oil and gas reserves, horizontal wells with greater lateral sections are becoming the standard in the drilling industry.
M. Petrov, A. Vorobyov
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A New Mud Pulse Telemetry System for Enhanced MWD/LWD Applications
IADC/SPE Drilling Conference, 2008Abstract Mud Pulse Telemetry systems in drilling operations have enabled the industry to gather valuable directional and formation data while drilling the well, and to optimize the drilling process. This makes drilling operations more cost efficient and allows the drilling of complex wells.
C. Klotz +3 more
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