ROV NZSUBSEA SERVICES

ROV NZ / SUBSEA SERVICES

Subsea photogrammetry & 3D metrology

Turn underwater stereo imagery into reconstructed asset geometry, textured models and recorded dimensions for engineering review.

Discuss your project

Capture geometry and asset condition

Stereo imagery and 3D reconstruction document underwater asset surfaces and geometry. In-field coverage review supports acquisition planning and helps identify areas that need additional capture.

Measure reconstructed features

Applications include chain dimensioning, line orientation, flange and spool geometry, and structural measurements. Annotated dimensions can be placed directly on processed models to support review. Survey control, measurement uncertainty and acceptance criteria are defined for each scope.

Supply models and measurement records

Outputs can include point clouds, textured OBJ models, annotated measurements and agreed engineering documentation. Relative accuracy, absolute accuracy and repeatability describe different aspects of a result; requirements are agreed before field work.

PROJECT EVIDENCE / DECOMMISSIONING & MOORING CHAINS

Reconstructed geometry.
Recorded dimensions.

Photogrammetric reconstruction of the Julimar East 1 subsea well
Selected reconstruction from the 17-well Australian decommissioning campaign

ROV NZ surveyed 17 subsea wells as part of a major Australian oil and gas decommissioning project, using stereo imagery and 3D reconstruction to support engineering review.

Our mooring-chain examples show dimensions placed directly on image-reference views and processed models. Achieved measurement repeatability in the featured chain campaign was approximately ±0.5 mm; this is distinct from absolute accuracy.

View the subsea well campaign

View annotated chain measurements

LET’S TALK ABOUT YOUR PROJECT

What do you need
to see or measure?

Share the asset, location, scope and intended deliverables. We’ll help identify a practical approach.