TY - JOUR
T1 - Full-waveform inversion of cross-hole GPR data collected in a strongly heterogeneous chalk reservoir analogue with sharp permittivity and conductivity contrasts
AU - Keskinen, Johanna
AU - Looms, Majken C.
AU - Moreau, Julien
AU - Nielsen, Lars
AU - Klotzsche, Anja
AU - van der Kruk, Jan
AU - Holliger, Klaus
AU - Stemmerik, Lars
N1 - Publisher Copyright:
© 2014 SEG.
PY - 2014
Y1 - 2014
N2 - Chalk sediments form an important reservoir for groundwater onshore and for hydrocarbons in the Danish sector of the North Sea. Cross-hole Ground-penetrating radar (GPR) tomography is an efficient method to investigate subtle porosity variations in the chalk. Traditional ray-based inversion techniques provide models that are overly smooth and have relatively low resolution. We present preliminary results from full-waveform inversion of data collected in strongly heterogeneous chalk. The resolution of the tomograms has improved significantly compared to models obtained from travel-time tomography. The new models also reflect the variability seen in 1D drill core analysis. The results indicate that fullwaveform inversion is a well-suited inversion technique for high-resolution time-lapse-based flow characterization.
AB - Chalk sediments form an important reservoir for groundwater onshore and for hydrocarbons in the Danish sector of the North Sea. Cross-hole Ground-penetrating radar (GPR) tomography is an efficient method to investigate subtle porosity variations in the chalk. Traditional ray-based inversion techniques provide models that are overly smooth and have relatively low resolution. We present preliminary results from full-waveform inversion of data collected in strongly heterogeneous chalk. The resolution of the tomograms has improved significantly compared to models obtained from travel-time tomography. The new models also reflect the variability seen in 1D drill core analysis. The results indicate that fullwaveform inversion is a well-suited inversion technique for high-resolution time-lapse-based flow characterization.
UR - http://www.scopus.com/inward/record.url?scp=85018377591&partnerID=8YFLogxK
U2 - 10.1190/segam2014-1199.1
DO - 10.1190/segam2014-1199.1
M3 - Conference article in journal
AN - SCOPUS:85018377591
VL - 2014
SP - 960
EP - 965
JO - SEG Technical Program Expanded Abstracts
JF - SEG Technical Program Expanded Abstracts
SN - 1052-3812
T2 - SEG Denver 2014 Annual Meeting
Y2 - 26 October 2011 through 31 October 2011
ER -