Results 1 to 10 of about 1,682 (251)

Design of a New Acoustic Logging While Drilling Tool [PDF]

open access: yesSensors, 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
doaj   +7 more sources

A lossless compression method for logging data while drilling

open access: yesSystems 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

Design of a Multi-Node Data Acquisition System for Logging-While-Drilling Acoustic Logging Instruments Based on FPGA [PDF]

open access: yesSensors
The 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
doaj   +2 more sources

Technical difficulties of logging while drilling in carbonate reservoirs and the countermeasures: A case study from the Sichuan Basin

open access: yesNatural Gas Industry B, 2015
In the Sichuan Basin, carbonate reservoirs are characterized by deep burial depth and strong heterogeneity, so it is difficult to conduct structure steering, pore space reservoir tracking and trajectory control in the process of geosteering logging while
Shudong Zhang
doaj   +3 more sources

Data Mining: Caliper Prediction Based on Gamma Logging While Drilling

open access: yesImproved Oil and Gas Recovery, 2021
During offshore drilling and completion operations of production adjustment wells, logging while drilling (LWD) is often adopted to improve the timeliness of drilling. In order to provide more reliable decision-making basis under limited data conditions,
Jiang Shaolong, Zhang Guoqiang, Yuan Renguo, Li Xin, Feng Enlong
doaj   +3 more sources

Application of Logging While Drilling Tool in Formation Boundary Detection and Geo-steering [PDF]

open access: yesSensors, 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
doaj   +2 more sources

Sensing While Drilling and Intelligent Monitoring Technology: Research Progress and Application Prospects [PDF]

open access: yesSensors
Obtaining accurate information on stratigraphic conditions and drilling status is necessary to ensure the safety of the drilling process and to guarantee the production of oil and gas.
Xiaoyu Li   +3 more
doaj   +2 more sources

Logging while drilling electromagnetic wave responses in inclined bedding formation

open access: yesPetroleum Exploration and Development, 2019
For real-time inversion and fast reconstruction of formation true resistivity, the forward modeling of electromagnetic wave logging while drilling is usually based on the transversely isotropic formation model with vertical symmetry axis (VTI medium ...
Yiren FAN   +4 more
doaj   +3 more sources

A real-time borehole correction of electromagnetic wave resistivity logging while drilling

open access: yesPetroleum Exploration and Development, 2013
The response of electromagnetic wave logging while drilling is influenced greatly by borehole and drilling fluid resistivity when the size of borehole is relatively large and drilling fluid resistivity is low.
Zhen YANG, Jinzhou YANG, Laiju HAN
doaj   +3 more sources

Logging-while-drilling formation dip interpretation based on long short-term memory

open access: yesPetroleum Exploration and Development, 2021
Azimuth gamma logging while drilling (LWD) is one of the important technologies of geosteering but the information of real-time data transmission is limited and the interpretation is difficult.
Qifeng SUN   +4 more
doaj   +3 more sources

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