Results 31 to 40 of about 1,642,785 (302)
Design and Shallow-Hole Validation of a Low-Flow Mud-Pulse MWD Pulser Head for Wireline Coring
Applied SciencesIn recent years, small-borehole wireline coring has become increasingly dependent on trajectory control, downhole condition sensing, and real-time directional decision-making.
Shuhao Tan +6 more
doaj +2 more sources
Data processing techniques for a wireless data transmission application via mud
EURASIP Journal on Advances in Signal Processing, 2011 The data measured by well bottom sensors can be transmitted to the surface through the drilling mud during oil drilling operations. This article introduces a data processing scheme for a wireless data transmission application via mud. The detailed signal
Zhao Qingjie, Zhang Baojun, Wang Wei
doaj +1 more source
Channel Modeling and Characterization for Mud Pulse Telemetry
, 2023 Channel Modeling and Characterization for Mud Pulse ...
jia, M
core +2 more sources
Research on mud pulse signal data processing in MWD [PDF]
EURASIP Journal on Advances in Signal Processing, 2012 Wireless measure while drilling (MWD) transmits data by using mud pulse signal ; the ground decoding system collects the mud pulse signal and then decodes and displays the parameters under the down-hole according to the designed encoding rules and the correct detection and recognition of the ground decoding system towards the received mud pulse signal ...
Bing Tu, De Li, En Lin, Miao Ji
openaire +1 more source
A lossless compression method for logging data while drilling
Systems Science & Control Engineering, 2021 Mud pulse transmission technology is widely used in logging while drilling (LWD), while its low data transmission efficiency has restricted the development of LWD technology for a long time. In order to improve the equivalent data transmission efficiency
Shan Song +5 more
doaj +1 more source
Channel Modeling and Characterization for Mud Pulse Telemetry
, 2023 Channel Modeling and Characterization for Mud Pulse ...
jia (14776180)
core +1 more source
Matrix: Jurnal Manajemen Teknologi dan Informatika, 2021 Weeding rice in paddy fields is mostly done by female farmers, as it is done by farmers in Kebon Bantiran village, Bajera, Tabanan. The body position of the female farmers when weeding the rice in the paddy field is bent and both feet are buried in the ...
I Nengah Darma Susila +2 more
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Design of signal generator for mine-used mud pulse wireless measurement while drilling
Gong-kuang zidonghua, 2019 For working conditions of small pump capacity and low pressure of directional drilling in coal mine underground, a mine-used mud pulse wireless measurement while drilling (MWD) device was developed, and technique requirements, structure composition and ...
LI Quanxin, CHU Zhiwei
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Experimental Study on Performance Evaluation of Controlled Plasma Pulse Plugging Removal Technology
Machines, 2023 In the production process of oil and gas wells, the migration of solid particles, such as mud and sand, often leads to screen pipe clogging, resulting in production reduction or even shutdown.
Leilei Huang +7 more
doaj +1 more source
Attenuation law of MWD pulses in aerated drilling
Petroleum Exploration and Development, 2012 A mathematical model for predicting the attenuation of measurement while drilling (MWD) pressure pulses in aerated drilling was proposed using the two-phase flow model and considering the momentum and energy exchange at the phase interface, gravity of ...
Hongtao LI +5 more
doaj +1 more source