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Image courtesy Seequent sub bottom profle,” she said. While Oasis montaj may not

REDUCE UNCERTAINTY

The trick isn’t just “more data,” rather it’s data that is process every format, the ability to bring in and visualize ft for purpose, processed reliably, integrated with other supporting datasets — and view seismic SEG-Y, for ex- ample — helps teams build a clearer picture of what’s on sources, and used to reduce uncertainty — especially un- the surface versus what’s buried.

certainty caused by false positives and false negatives.

Grove put it plainly: if magnetometry shows an anomaly, “One of the biggest challenges for our customers is the false positives, false negatives,” Grove said, describing the but multibeam or side scan provides context, you can start to answer the frst-order question: is it on top of the seabed, uncertainty created by clutter on the seabed. In magne- or under it? The outcome isn’t academic — those determina- tometry, the physics can be non-unique: small and shal- low can resemble big and deep, and vice versa. That’s why tions can change where a turbine foundation sits, how a ca- ble route is adjusted, or where risk mitigation is prioritized.

integration matters.

Seequent’s answer in the marine UXO space is its UXO

BEYOND UXO

Marine module within Oasis montaj—built as part of a

One of the more pragmatic points in the discussion: modular, end-to-end geophysics workfow. Bodger described

UXO isn’t a standalone “checkbox.” It’s often the frst hard it as covering planning through QA/QC, map/report gener- gate in a sequence of subsea decisions.

ation, and target list creation from processed magnetic data.

Bodger noted that Seequent’s portfolio extends beyond

Key capabilities in that workfow include automated target picking: users can set parameters based on what the UXO Marine into products like Leapfrog for geological “smallest detectable object” is for a given survey design and modeling, where targets and hazards can be integrated into a broader ground model — including clays, silts and in- mission requirement, and pick everything above a mini- mum threshold. The module also offers modeling tools that terpreted seabed structures. Grove referenced recent work can provide depth estimates — critical information when around cable routing and thermal response, where under- you’re trying to decide what requires investigation, what can standing sediments and their behavior directly infuences design and operational performance.

be discounted, and where to shift infrastructure if needed.

In short, UXO fndings don’t live in a vacuum. They inform

But Bodger was clear: in marine UXO, magnetometry is the geotechnical interpretation, and they ultimately infuence necessary but often not suffcient. That’s why Seequent fo- cuses heavily on integrating and visualizing multiple data engineering decisions — foundation placement, cable burial types in one place. “You need side scan sonar, multi-beam, strategy, route selection, and other infrastructure choices.

JANUARY/FEBRUARY 2026 OFFSHORE ENGINEER 45