OrbitDC Surveys provides specialist engineering dimensional control services to the oil and gas, petrochemical and nuclear energy sectors worldwide. Our engineers deliver precision survey and fabrication control on site and in the fabrication yard, supported by ORBIT, our own dimensional control software, so every result is fully checked, statistically verified and clearly reported.
From a single tie-in to a full fabrication programme, every dimension is measured, verified and reported before it can cost you time on site.
Survey of existing tie-in points and fabricated spools, so closing pieces are built right first time, with deviations reported against design before anything is cut.
Dimensional control of modules, skids and steel structures from fabrication yard to installation, including interface and set-down checks.
Precise control networks established and adjusted by least squares, with chi-square testing and error ellipses so every coordinate can be defended.
Roundness, verticality, nozzle position and orientation checks on vessels, tanks and rotating-equipment foundations.
Pipework, flanges, steel and key features extracted from laser scan point clouds, delivering accurate as-built geometry for modelling, clash checking and tie-in design.
Survey and as-built data delivered as BIM models, ready to integrate with your project's design and asset information.
Clear survey reports, deviation tables and 3D AutoCAD models, produced with ORBIT, the software we build and use ourselves.
Every survey is reduced, verified and turned into an accurate 3D model of the as-built condition, ready for design modelling, fabrication, tie-in and delivery into BIM.
Survey data is reduced and placed directly in the AutoCAD drawing, with every flange identified and annotated with its position, tilt and bolt roll.
Each flange is fitted by least squares and modelled at its true tilt and bolt roll, with every bolt hole drilled, in place within the existing plant.
ORBIT builds the as-built model in context, with flanges inserted, pipe routed between the connection points and every deviation annotated.
Thirty years of surveying and fabrication in industries where every millimetre matters.
Onshore and offshore facilities in the UK North Sea, the Norwegian sector and the Gulf of Mexico, from pipe spools and tie-ins to modules and structures.
Refinery and process plant piping, vessels and equipment, during new build and shutdowns.
Dimensional control to the tight tolerances and rigorous quality records nuclear projects demand.
Fabrication yards and workshops, checking pipework and steel before it ships.
A rigorous process, with the statistics to support every result.
We agree the scope, tolerances, control and deliverables with you before we mobilise.
Precision total-station survey on site or in the yard, by experienced dimensional control engineers.
Data reduced and adjusted in ORBIT, with least squares, chi-square tests and error ellipses.
Clear reports, deviation tables and 3D AutoCAD models, delivered promptly to keep the project moving.
Our team has been involved in several large oil and gas and nuclear projects, including offshore developments in the UK North Sea, the Norwegian sector and the Gulf of Mexico.
Oil and gas · Petrochemical · Nuclear energy
UK North Sea · Norwegian sector · Gulf of Mexico
UK based, working wherever your project is
Tell us about your project and we will set out how we would approach it.