Borehole Radar Attenuation‐Difference Tomography During the Tracer/Time‐Lapse Test at the Boise Hydrogeophysical Research Site

2003 ◽  
Author(s):  
Sarah E. Goldstein ◽  
Tim C. Johnson ◽  
Michael D. Knoll ◽  
Warren Barrash ◽  
William P. Clement
Keyword(s):  
Time Lapse ◽  
Research Site ◽  
Borehole Radar

Borehole Radar Attenuation-Difference Tomography During The Tracer/Time-Lapse Test At The Boise Hydrogeophysical Research Site

2003 ◽  
Author(s):  
Sarah E. Goldstein ◽  
Tim C. Johnson ◽  
Michael D. Knoll ◽  
Warren Barrash ◽  
William P. Clement
Keyword(s):  
Time Lapse ◽  
Research Site ◽  
Borehole Radar

scholarly journals Estimating reservoir permeability with borehole radar

Geophysics ◽  
2020 ◽  
Vol 85 (4) ◽  
pp. H51-H60
Author(s):  
Feng Zhou ◽  
Iraklis Giannakis ◽  
Antonios Giannopoulos ◽  
Klaus Holliger ◽  
Evert Slob
Keyword(s):  
Water Saturation ◽  
Time Lapse ◽  
Drilling Mud ◽  
Invasion Depth ◽  
Initial Water ◽  
Oil Drilling ◽  
Reservoir Evaluation ◽  
Reservoir Permeability ◽  
Borehole Radar ◽  
Porosity And Permeability

In oil drilling, mud filtrate penetrates into porous formations and alters the compositions and properties of the pore fluids. This disturbs the logging signals and brings errors to reservoir evaluation. Drilling and logging engineers therefore deem mud invasion as undesired and attempt to eliminate its adverse effects. However, the mud-contaminated formation carries valuable information, notably with regard to its hydraulic properties. Typically, the invasion depth critically depends on the formation porosity and permeability. Therefore, if adequately characterized, mud invasion effects could be used for reservoir evaluation. To pursue this objective, we have applied borehole radar to measure mud invasion depth considering its high radial spatial resolution compared with conventional logging tools, which then allows us to estimate the reservoir permeability based on the acquired invasion depth. We investigate the feasibility of this strategy numerically through coupled electromagnetic and fluid modeling in an oil-bearing layer drilled using freshwater-based mud. Time-lapse logging is simulated to extract the signals reflected from the invasion front, and a dual-offset downhole antenna mode enables time-to-depth conversion to determine the invasion depth. Based on drilling, coring, and logging data, a quantitative interpretation chart is established, mapping the porosity, permeability, and initial water saturation into the invasion depth. The estimated permeability is in a good agreement with the actual formation permeability. Our results therefore suggest that borehole radar has significant potential to estimate permeability through mud invasion effects.

scholarly journals Time-lapse borehole radar for monitoring rainfall infiltration through podosol horizons in a sandy vadose zone

2014 ◽  
Vol 50 (3) ◽  
pp. 2140-2163 ◽  
Author(s):  
Elmar Strobach ◽  
B. D. Harris ◽  
J. C. Dupuis ◽  
A. W. Kepic
Keyword(s):  
Vadose Zone ◽  
Time Lapse ◽  
Rainfall Infiltration ◽  
Borehole Radar

scholarly journals Quantitative estimation of groundwater recharge process through a vadose zone using time-lapse cross-borehole radar profiling

2007 ◽  
Vol 60 (6) ◽  
pp. 467-476 ◽  
Author(s):  
Seiichiro Kuroda ◽  
Masato Asano ◽  
Satoshi Nihira ◽  
Takehiko Okuyama ◽  
Hirotaka Saito ◽  
...  
Keyword(s):  
Groundwater Recharge ◽  
Vadose Zone ◽  
Quantitative Estimation ◽  
Time Lapse ◽  
Borehole Radar

Tracer/Time-Lapse Radar Imaging Test At The Boise Hydrogeophysical Research Site

2003 ◽  
Author(s):  
Warren Barrash ◽  
Michael D. Knoll ◽  
David W. Hyndman ◽  
Tom Clemo ◽  
Edward C. Reboulet ◽  
...  
Keyword(s):  
Time Lapse ◽  
Radar Imaging ◽  
Research Site ◽  
Imaging Test

Effects of petrophysical properties on time-lapse borehole radar logging

2020 ◽  
Author(s):  
Feng Zhou ◽  
Iraklis Giannakis ◽  
Antonios Giannopoulos ◽  
Klaus Holliger ◽  
Evert Slob
Keyword(s):  
Time Lapse ◽  
Petrophysical Properties ◽  
Borehole Radar

Tracer/Time‐Lapse Radar Imaging Test at the Boise Hydrogeophysical Research Site

2003 ◽  
Author(s):  
Warren Barrash ◽  
Michael D. Knoll ◽  
David W. Hyndman ◽  
Tom Clemo ◽  
Edward C. Reboulet ◽  
...  
Keyword(s):  
Time Lapse ◽  
Radar Imaging ◽  
Research Site ◽  
Imaging Test
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