Engineering Surveys

Using the most advanced equipment and tools in the survey industry, we deliver superior accuracy for dimension control measurements in support of engineering works.

We provide engineering survey services and support for construction and other engineering works, including reservoir monitoring, road and building construction, and fabrication-yard dimension control for subsea structures and vessel systems.

Dimension control surveys

A dimension control survey (DIMCON) measures a structure, a fabricated part or a vessel system precisely and compares it with its design, so that pieces built in different places fit together when they are installed.

We carry out dimension control at fabrication yards and on board vessels: on subsea tree stacks at the TechnipFMC yard for the Bonga development, on vessels at Onne in Rivers State, and on pile guides at the Dangote Refinery free trade zone.

Engineering and construction surveys

• Setting out, and checking that what is built matches the design.
• As-built and as-constructed reports.
• Civil and road works surveys.
• Quality control on construction projects.
• Monitoring the movement and health of completed structures and facilities.
• 3D laser scanning and volume calculations.

Common questions

Can you work at our fabrication yard or on our vessel? Yes. Much of our dimension control work is done at fabrication yards and on vessels, onshore and at the quayside.

What equipment do you use? High-accuracy total stations, GNSS receivers and 3D laser scanners, chosen for the accuracy each job needs.