Seismic Case Study Portfolio
A modern public dataset was reprocessed with a focus on the Jurassic target interval. The objective was to deliver an improved dataset for prospect screening with a much shorter turnaround than a conventional reprocessing project.
The Q-CRAM result improved imaging of the Jurassic and Cretaceous intervals and produced a clearer dataset for screening and interpretation work.
This case highlights the impact of regularisation together with Q-aware processing. The objective is to stabilise the image, improve continuity and sharpen the target response without losing geological consistency.
There is highly efficient workflow based on 5D
regularization that addresses issues related to surface
data coverage. It significantly reduces this noise, and
makes the Early Cretaceous section interpretable.
Brightening concentrated at the base of the reservoir on the vintage PSDM left uncertainty as to whether the seismic response was caused by lithology alone or reflected hydrocarbon presence.
The reprocessed data showed a clearer response on both top and base reservoir, strengthening seismic support for the drilling decision and reducing the main amplitude-related risk.
This example shows a challenging structural setting where the reprocessed result sharpens target events and improves imaging below the disturbed section.
The reprocessed section presents cleaner structure and stronger continuity in the deeper part of the section, helping interpreters understand the geometry below the main high-contrast interval.
This case study highlights how reprocessing can produce a sharper and more coherent reservoir image, enhancing the interpretability of key target events.
The after-image displays a cleaner and more stable representation of the reservoir interval, supporting more confident interpretation and amplitude assessment.
This example illustrates how triple-azimuth imaging of conventional data can improve the image of a structurally complex target. The emphasis is on improved resolution, continuity and imaging of steep dips.
The multi-azimuth result gives a more stable and geologically usable image around the main structure. It demonstrates how conventional data with broader azimuth coverage can help resolve complex imaging challenges.
In this land 3D example, the aim was to improve imaging in an area known for poor signal-to-noise ratio within the reservoir zones below the Neogene overburden.
The CRAM result more clearly images steeply dipping events and fault planes while suppressing noise, improving understanding of the basin architecture and compartmentalisation of the reservoir units.
Source: Deep Structural Imaging in the Vienna Basin, First Break, Volume 41, Issue 12, Dec 2023, p. 31–35
A vintage land 3D dataset was reprocessed to improve reservoir-level resolution using denoise, residual statics, 5D regularization, a well-derived velocity model, high-resolution tomography and Q migration.
The high-frequency ES360 result enhanced the seismic bandwidth relative to the vintage KPSDM image, unlocking higher resolution and allowing more detailed interpretation within the reservoir interval.
