Abstract
This paper presents data processing methods to explore a special target like petroleum deposits by means of reflection seismics. A tomographic inversion procedure for traveltime and amplitude data from combined Vertical Seismic Profiling (VSP)/crosshole-measurements and surface profiles was developed. This procedure consists of two phases: (i) the forward modelling and (ii) the inversion. Looking for a suitable forward modelling led to the Gaussian beam method. It is a fast method for computing synthetic seismograms with all desired arrivals (direct, refracted, reflected P-/SV-/SH-waves with their conversions). Using a set of test models, the reliability and accuracy of the Gaussian beams have been shown. Looking for a suitable inversion technique led to the iterative reconstruction techniques (ART (Analytic Reconstruction Technique)/SIRT). An important advantage of the iterative approach is the possibility of considering curved ray paths, reflected phases or other arrivals. The forward modelling was fitted to the iterative inversion process Simultaneous Iterative Reconstruction Technique (SIRT). A synthetic reverse VSP-model demonstrated the possibilities of this new inversion procedure for both traveltime and amplitude tomography. These results were compared with the standard tomographic inversion. 120 refs., 59 figs., 5 tabs.
Citation Formats
Lehmann, B, Krollpfeifer, D, Dresen, L, and Gelbke, C.
Transmission and reflection tomographic inversion of offset VSP-data and the use of the results for target-oriented processing of reflection seismic data.
France: N. p.,
1992.
Web.
Lehmann, B, Krollpfeifer, D, Dresen, L, & Gelbke, C.
Transmission and reflection tomographic inversion of offset VSP-data and the use of the results for target-oriented processing of reflection seismic data.
France.
Lehmann, B, Krollpfeifer, D, Dresen, L, and Gelbke, C.
1992.
"Transmission and reflection tomographic inversion of offset VSP-data and the use of the results for target-oriented processing of reflection seismic data."
France.
@misc{etde_10136362,
title = {Transmission and reflection tomographic inversion of offset VSP-data and the use of the results for target-oriented processing of reflection seismic data}
author = {Lehmann, B, Krollpfeifer, D, Dresen, L, and Gelbke, C}
abstractNote = {This paper presents data processing methods to explore a special target like petroleum deposits by means of reflection seismics. A tomographic inversion procedure for traveltime and amplitude data from combined Vertical Seismic Profiling (VSP)/crosshole-measurements and surface profiles was developed. This procedure consists of two phases: (i) the forward modelling and (ii) the inversion. Looking for a suitable forward modelling led to the Gaussian beam method. It is a fast method for computing synthetic seismograms with all desired arrivals (direct, refracted, reflected P-/SV-/SH-waves with their conversions). Using a set of test models, the reliability and accuracy of the Gaussian beams have been shown. Looking for a suitable inversion technique led to the iterative reconstruction techniques (ART (Analytic Reconstruction Technique)/SIRT). An important advantage of the iterative approach is the possibility of considering curved ray paths, reflected phases or other arrivals. The forward modelling was fitted to the iterative inversion process Simultaneous Iterative Reconstruction Technique (SIRT). A synthetic reverse VSP-model demonstrated the possibilities of this new inversion procedure for both traveltime and amplitude tomography. These results were compared with the standard tomographic inversion. 120 refs., 59 figs., 5 tabs.}
place = {France}
year = {1992}
month = {Dec}
}
title = {Transmission and reflection tomographic inversion of offset VSP-data and the use of the results for target-oriented processing of reflection seismic data}
author = {Lehmann, B, Krollpfeifer, D, Dresen, L, and Gelbke, C}
abstractNote = {This paper presents data processing methods to explore a special target like petroleum deposits by means of reflection seismics. A tomographic inversion procedure for traveltime and amplitude data from combined Vertical Seismic Profiling (VSP)/crosshole-measurements and surface profiles was developed. This procedure consists of two phases: (i) the forward modelling and (ii) the inversion. Looking for a suitable forward modelling led to the Gaussian beam method. It is a fast method for computing synthetic seismograms with all desired arrivals (direct, refracted, reflected P-/SV-/SH-waves with their conversions). Using a set of test models, the reliability and accuracy of the Gaussian beams have been shown. Looking for a suitable inversion technique led to the iterative reconstruction techniques (ART (Analytic Reconstruction Technique)/SIRT). An important advantage of the iterative approach is the possibility of considering curved ray paths, reflected phases or other arrivals. The forward modelling was fitted to the iterative inversion process Simultaneous Iterative Reconstruction Technique (SIRT). A synthetic reverse VSP-model demonstrated the possibilities of this new inversion procedure for both traveltime and amplitude tomography. These results were compared with the standard tomographic inversion. 120 refs., 59 figs., 5 tabs.}
place = {France}
year = {1992}
month = {Dec}
}