Results 141 to 150 of about 603 (176)

Radar measurements with a directional borehole antenna

SEG Technical Program Expanded Abstracts 1989, 1989
SUMMARY A directional borehole antenna has been developed for the RAMAC borehole radar system. Several methods previously used to locate fracture zones in rock are reviewed. In comparison with these methods of analysing radar data the directional antenna makes it possible to obtain the position of a reflector by measuring in a single borehole.
Olle Olsson, Lara Falk, Eric Sandberg, Olof Forslund, Lars Lundmark   +4 more
openaire   +1 more source

Directional borehole radar antenna calibration

2010 IEEE Instrumentation & Measurement Technology Conference Proceedings, 2010
A directional borehole radar system was developed and tested to assess its directional accuracy. The radar probe employs an Adcock dipole array as its receiving antenna. It is well known that the directional accuracy of the radar probe deteriorates significantly with increased antenna eccentricity.
Kibreab Behaimanot, Matthias Boeger, Albrecht Glasmachers   +2 more
openaire   +1 more source

Environmental Logging with A Borehole Radar Tool

1995
The need for better environmental characterization and protection has focused new attention on geologic formations with unusually high electrical resistivities. Dry igneous bedrock, tight metamorphic bedrock and crystalline salt have attracted attention as potential repositories for chemical and nuclear waste.
Richard Gaylor, David Lieblich, David Mariani, Jake Xia   +3 more
openaire   +1 more source

Borehole Radar Interferometry

7th SAGA Biennial Technical Meeting and Exhibition, 2001
P.K. Mukhopadhyay, M.R. Inggs, A.J. Wilkinson   +2 more
openaire   +1 more source

Improving Coverage with Borehole Radar

10th SAGA Biennial Technical Meeting and Exhibition, 2007
A. Bray, T. Sindle, I. Mason, K. Palmer, J. Cloete, J. Steenkamp, P. du Pisani, K. Trofimczyk   +7 more
openaire   +1 more source

Borehole radar interferometry revisited

Proceedings of the 15th International Conference on Ground Penetrating Radar, 2014
null Lanbo Liu, null Chunguang Ma, John W. Lane, Peter Joesten   +3 more
openaire   +1 more source

Borehole radar for oil production monitoring

2012
The area of smart well technology, or closed-loop reservoir management, aims at enhancing oil recovery through a combination of monitoring and control. Monitoring is performed with a wide range of sensors deployed downhole or at the surface. These sensors allow for capturing changes in the reservoir conditions, mainly the fluid movement, at different ...
openaire   +1 more source

A Compact Reconfigurable Antenna for Borehole Radar

2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI), 2021
Jisheng Tong, Qing Zhao, Yongxin Guo
openaire   +1 more source

An Application of Reflected Guided Borehole Radar Waves to Detection of Subhorizontal Structures

IEEE Transactions on Geoscience and Remote Sensing, 2021
Qing Zhao, Jianjian Huo, Binzhong Zhou   +2 more
exaly  

Application of Borehole Radar in Underground Works

EGRSE – Exploration Geophysics, Remote Sensing and Environment, 2022
Bláha, Pavel, Nedvěd, Jiří, Štainbruch, Jakub, Waclawik, Petr, Kukutsch, Radovan   +4 more
openaire   +1 more source