Hi-Res Site Survey

A high-resolution seismic survey (0.5 – 1 ms sampling rate) is critical prior to drilling for oil and gas because it provides detailed imaging of the subsurface, reducing the risks and costs associated with exploration and development. Drilling is expensive, and accurate seismic data ensures better decision-making by helping identify the optimal drilling locations whilst minimising exposure to hazards.

Geophysical site surveys prior to O&G drilling are required to help operators target productive zones, avoid drilling dry holes, and optimise production. These surveys also mitigate risks by detecting geohazards like shallow gas pockets, overpressure zones, and unstable layers that could compromise well safety and stability.

Using the highest standard of seismic data further minimises risks because it reduces the uncertainty within the interpretation of the subsurface, supporting the delivery of the most accurate charts and reporting.

Most site surveys are acquired with only a single hydrophone streamer (2D), however where hazards exist as only discrete features such as pockets of shallow gas, they could be missed if the 2D line spacing is too large. 3D hi resolution site surveys reduce this risk, by sampling the subsurface in both inline and crossline directions. Depending on the bin spacing achieved through a given acquisition design, then spatial resolution can be significantly enhanced when compared to even a tightly spaced 2D grid.

We are experienced at processing seismic for oil and gas exploration (0-250 Hz bandwidth) and offshore wind foundation or cable routes (>1,000 Hz), which puts us in a unique position in the seismic processing industry, as high-end technology and learnings can be transferred from both for the benefit of the conventional site survey subsurface data.

Contact us about ensuring you work with the most reliable site survey seismic data.

Related services: Seismic Acquisition Partner; 3D UHRS