Results 11 to 20 of about 532 (178)
Application of MWD Sensor System in Auger for Real-Time Monitoring of Soil Resistance During Pile Drilling [PDF]
SensorsMeasuring-while-drilling (MWD) techniques have great potential for use in geotechnical engineering research. This study first addresses the current use of MWD, which consists of recording data using sensors in a drilling machine operating on site.
Krzysztof Trojnar, Aleksander Siry
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Improved filtering and normalizing of Measurement-While-Drilling (MWD) data in tunnel excavation
Tunnelling and Underground Space Technology, 2020 Abstract Measurement-While-Drilling (MWD) data are complex because of the drilling process and drilling system. Swift and accurate normalization and filtration processes are required if MWD data are to be used for rock mass characterization. The current method for MWD data filtration does not consider all the effects of the drilling process, e.g ...
van Eldert, Jeroen +3 more
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Rock fracture density characterization using measurement while drilling (MWD) techniques
International Journal of Mining Science and Technology, 2018 Accurate determination of rock mass properties is a critical part of open-pit mine planning activities to enable more prescriptive blast designs to achieve improved loading and hauling and downstream process efficiency.
Mohammad Babaei Khorzoughi +2 more
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Indian Geotechnical JournalAbstract Rock hardness significantly impacts drilling performance and costs. Direct field measurement is challenging, so indirect methods using drilling data have been developed. Measurement while drilling (MWD) records parameters like weight on bit, torque, and penetration rate, which reflect rock properties and conditions.
Liaghat, Samaneh +2 more
exaly +5 more sources
ProcessesIn constructing rapid rock identification models for measurement while drilling (MWD) via neural network methods, collecting actual drilling data to train the model is extremely time-consuming and labor-intensive. This requires extensive drilling experiments in various rock types, resulting in limited neural network training data for rock ...
Yuwei Fang +5 more
exaly +4 more sources
Development of Comprehensive Acquisition Software for Measurement While Drilling Data Based on VUE Coal Mine [PDF]
E3S Web of Conferences, 2023 For the current coal mine directional drilling MWD equipment and system are independent of each other, resulting in different forms of MWD data at the bottom of the hole, forming data islands; Based on the B/S system architecture mode, by comparing the ...
Zhang Jungang +4 more
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Sensors, 2018 The present study designed skewed redundant accelerometers for a Measurement While Drilling (MWD) tool and executed auto-calibration, fault diagnosis and isolation of accelerometers in this tool.
Seyed Mohsen Seyed Moosavi +3 more
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Physics-Based Observers for Measurement-While-Drilling System in Down-the-Hole Drills
Mathematics, 2022 Measurement While Drilling (MWD) is a technology for assessing rock mass conditions by collecting and analyzing data of mechanical drilling variables while the system operates.
Gabriel Bout +4 more
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A mutation detection method of discontinuous structures in rock strata based on drilling parameters [PDF]
Scientific ReportsDiscontinuous structures in coal mine roadway roofs, such as rock interfaces and joint fractures, are critical factors leading to surrounding rock instability.
Xin Sun +5 more
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Applied Sciences, 2021 Fiber-optic gyroscopes (FOGs)-based Measurement While Drilling system (MWD) is a newly developed instrument to survey the borehole trajectory continuously and in real time. However, because of the strong vibration while drilling, the measurement accuracy
Lu Wang +3 more
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