Publication Date:
2022-11-09
Description:
In recent decades, geological modeling has significantly evolved, relying on the growing potential of
hardware and software to manage and integrate vast datasets of 2D-3D geophysical underground data.
Therefore, digitization and integration with other forms of data can often improve understanding
of geological systems, even when using so-called vintage or historical data.
Seismic reflection data have been extensively acquired mainly for hydrocarbon exploration since
the 60s generating large volumes of data. Typically, these data have been for private commercial
use and are relatively unavailable for research.
However, with time, large volumes of vintage seismic reflection data in many countries worldwide
are now becoming publicly available through time-based de-classification schemes.
Such data have a great potential for modern-day geo-research, unleashing opportunities to improve
geological understanding through re-interpretation with modern methods.
However, a downside of these vintage data is that they are often only available in analog (paper,
raster) format. The vectorization of these data then constitutes an essential step for unlocking their
research potential.
In 2018 INGV established the SISMOLAB-3D infrastructure, which is mainly devoted to analyzing
digital subsurface data, such as seismic reflection profiles and well-logs, to build 2D-3D geological
models, principally for seismotectonics, seismic hazard assessment, and geo-resources applications.
In this contribution, we discuss the robustness of the WIGGLE2SEGY code, firstly published by
Sopher in 2018, focusing on examples from different tectonic and geodynamic contexts within
Italian territory. We applied the SEG-Y conversion method to onshore and offshore raster seismic
profiles related to ceased exploration permits, comparing the results with other published archives
of SEG-Y data obtained from the conversion of vintage data.
Such an approach results in digital SEG-Y files with unprecedented quality and detail. The systematic
application of this method will allow the construction of a comprehensive dataset of digital
SEG-Y seismic profiles across Italy, thereby expanding and sharing the INGV SISMOLAB-3D portfolio
with the scientific community to foster innovative and advanced scientific analysis.
Description:
Published
Description:
DM538
Description:
1TR. Georisorse
Description:
2TR. Ricostruzione e modellazione della struttura crostale
Description:
2IT. Laboratori analitici e sperimentali
Description:
JCR Journal
Keywords:
Vectorization of vintage seismic profiles into SEG-Y
;
WIGGLE2SEGY MATLAB-based code
;
Seismic profiles digital database
;
Italian territory
;
2D/3D geological models
;
04.02. Exploration geophysics
;
05.06. Methods
;
05.04. Instrumentation and techniques of general interest
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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