Results 1 to 10 of about 167 (108)
Design of a New Acoustic Logging While Drilling Tool [PDF]
Sensors, 2021 To obtain qualified logging while drilling (LWD) data, a new acoustic LWD tool was designed. Its overall design is introduced here, including the physical construction, electronic structure, and operation flowchart.
Kai Zhang +8 more
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A New Logging-While-Drilling Method for Resistivity Measurement in Oil-Based Mud [PDF]
Sensors, 2020 Resistivity logging is an important technique for identifying and estimating reservoirs. Oil-based mud (OBM) can improve drilling efficiency and decrease operation risks, and has been widely used in the well logging field. However, the non-conductive OBM
Yongkang Wu +5 more
doaj +4 more sources
Design of a Multi-Node Data Acquisition System for Logging-While-Drilling Acoustic Logging Instruments Based on FPGA [PDF]
SensorsThe logging-while-drilling (LWD) acoustic logging instrument is pivotal in unconventional oil and gas exploration, and in providing real-time assessments of subsurface formations. The acquisition system, a core component of the LWD acoustic logging suite,
Zhenyu Qin +4 more
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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 +2 more sources
Petroleum Exploration and Development, 2010 The effect of drilling fluid invasion on the resistivity of oil-bearing zones during the period from penetrating the zone to completion well logging was studied using intergraded logging while drilling (LWD) and wire-line log data.
Tian Zhongyuan +4 more
doaj +3 more sources
Petroleum Exploration and Development, 2018 Azimuthal electromagnetic logging while drilling (LWD), which is capable of providing accurate position information approaching bed boundary, has been widely applied in real-time geosteering.
Lei WANG +5 more
doaj +3 more sources
Machine Learning with Applications, 2022 The Marcellus Shale and Energy Environmental Laboratory (MSEEL) provides a comprehensive dataset and field tests that can be used to study the significance of preexisting natural fractures in different subsurface engineering problems such as the ...
Ebrahim Fathi +5 more
doaj +3 more sources
Acoustic Emission and Echo Signal Compensation Techniques Applied to an Ultrasonic Logging-While-Drilling Caliper [PDF]
Sensors, 2017 A logging-while-drilling (LWD) caliper is a tool used for the real-time measurement of a borehole diameter in oil drilling engineering. This study introduces the mechanical structure and working principle of a new LWD caliper based on ultrasonic distance
Yongchao Yao +3 more
doaj +2 more sources
Application of Logging While Drilling Tool in Formation Boundary Detection and Geo-steering [PDF]
Sensors, 2019 Logging while drilling (LWD) plays a crucial role in geo-steering, which can determine the formation boundary and resistivity in real time. In this study, an efficient inversion, which can accurately invert formation information in real time on the basis
Gaoyang Zhu +3 more
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A Data Compression Method for Wellbore Stability Monitoring Based on Deep Autoencoder [PDF]
SensorsThe compression method for wellbore trajectory data is crucial for monitoring wellbore stability. However, classical methods like methods based on Huffman coding, compressed sensing, and Differential Pulse Code Modulation (DPCM) suffer from low real-time
Shan Song +3 more
doaj +2 more sources