Detection imaging of impulse borehole well-logging radar
EURASIP Journal on Image and Video Processing, 2018 Borehole ground-penetrating radar (hereinafter referred to as GPR) technology is a geophysical detection method in the well, in which, the high-frequency electromagnetic waves are transmitted to stratum and the spread properties of electromagnetic waves ...
Longfei Dang, Hongchun Yang, Baohua Teng
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Research on directional detection technology of mine borehole radar [PDF]
矿业科学学报To address the problem that conventional borehole radar has difficulties in performing directional detection of surrounding targets due to the effects of radar wave propagation characteristics and complex geological conditions in mines, research on ...
XU Xianlei +4 more
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Dam Leakage Detection by Borehole Radar: A Case-History Study
Remote Sensing, 2019 A borehole radar investigation was performed at the Sanzuodian reservoir, Chifeng, China to assess possible leakage paths located in the deep dam foundation.
Sixin Liu +5 more
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Using borehole radar detecting hydraulic fracturing crack in near horizontal holes in coal mine
Frontiers in Earth ScienceCurrently, hydraulic fracturing technology is widely implemented for controlling the surrounding rock and enhancing permeability in low-permeability coal seams.
Jiang Bici, Jiang Bici
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Remote SensingWe propose an outer pipe to reduce a direct wave in a thin single-hole borehole radar probe in a thick water-filled borehole. The outer pipe replaces the medium, such as water inside the borehole, with low-permittivity materials, such as air and plastics.
Satoshi Ebihara +4 more
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Investigation of Geological Anomalies at Pile Foundation Location in Urban Karst Areas Using Single Borehole Radar [PDF]
Geosciences, 2020 Karst geological anomalies at pile locations significantly affect the bearing capacity and construction safety of the piles, posing a significant challenge for urbanization.
Liu Liu +3 more
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Advanced fine detection technology of coal and gas outburst danger area
Meikuang Anquan, 2022 According to the geological structure and environmental characteristics of coal and gas outburst and the shortcomings of existing outburst prediction index system, the borehole radar is used to carry out the advanced and fine detection of gas geological
ZHU Nannan +3 more
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Characteristics of a fracture network surrounding a hydrothermally altered shear zone from geophysical borehole logs [PDF]
Solid Earth, 2020 Hydrothermally active and altered fault/shear zones in crystalline rocks are of practical importance because of their potential similarities with petrothermal reservoirs and exploitable natural hydrothermal systems.
E. Caspari +10 more
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A firn dielectric log depth-tied to an ice core on the West Antarctica Ice Sheet [PDF]
Anais da Academia Brasileira de Ciências, 2022 We have estimated a 1-D permittivity model from a 100m long variable offset GPR in the West Antarctic ice sheet. That model inherits the inaccuracies in depth from the velocity model, which should be corrected before attempting to correlate it with the ...
JANDYR M. TRAVASSOS +2 more
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Extracting mud invasion information using borehole radar-a numerical study [PDF]
, 2022 In hydrocarbon drilling, mud filtrate penetrates permeable formations, and alters the pore fluid characteristics in the immediate vicinity of the borehole.
Giannakis, Iraklis +10 more
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