Quantity surveying and claims support for subsea installation packages, landfalls and associated construction.
Subsea cable and pipeline projects bring marine installation together with shore approaches, landfalls and onshore connections. Supply, marine operations and civil works may be contracted separately. The commercial review needs to distinguish the installed asset from mobilisation, temporary works and the agreed installation support.
A changed crossing or seabed condition can require a different burial method, extra protection or a revised route. Vessel time and material quantities may both increase.
We compare the survey baseline and specified protection scope with the instructed route. Quantities and vessel records are reconciled separately so changed work and productivity effects are not counted twice.
Installation vessels, fabrication slots and port loading windows are interdependent. Late delivery or unavailable workfronts can cause standby, storage and remobilisation far beyond the delayed item's value.
We examine the delivery and readiness obligations alongside the booked campaign. A missed loading slot can affect port handling, storage and vessel mobilisation, but the full chain needs evidence. Actual bookings, daily reports and mitigation decisions help separate incurred costs from provisional or duplicated claims across the suppliers.
Landfall drilling, pull-ins and crossings can involve separate contractors and asset owners. An incomplete duct, delayed consent or changed crossing detail can hold up the offshore operation.
We link the offshore delay to the particular landfall, duct or crossing dependency and assess its consequences across the onshore and offshore packages.
Weather downtime is not the same as a vessel waiting for preparation or recovering from a breakdown.
We compare the logged cause with the measured conditions and the operating limits for the activity being attempted. Different laying, jointing and intervention tasks may have different limits, so a single weather label for the whole shift can be misleading.
Installed length alone may not satisfy requirements for burial depth, protection, testing and as-laid records. Remedial surveys or additional protection can delay acceptance and associated payments.
We assess the acceptance findings against the specified burial, protection and test scope. Additional payment must distinguish an instructed change from completing or rectifying the original work, with surveys and attendance records supporting the difference.
