Dolphin Delivers Drop-In Exchanger Replacement for Offshore Platform in 9 Weeks

When an offshore operator in the UAE identified a failing shell and tube exchanger on a production train, the standard overseas replacement lead time of 6–12 months was not an option — every day of lost throughput carried a direct cost to the platform's output, and the client's own engineering team had already ruled out a like-for-like order from the original overseas fabricator on schedule grounds alone.

Dolphin Group's Mussafah facility fabricated a full ASME U-stamped drop-in replacement engineered to match the original unit's footprint, nozzle orientation and connection sizing exactly, eliminating any need for piping or skid modification on installation. Matching the original general arrangement drawing to the millimetre was the single decision that kept the installation itself to a matter of hours rather than a multi-day tie-in campaign.

Thermal and mechanical design ran in parallel with long-lead material procurement from day one, rather than waiting for design sign-off before ordering plate and tube stock — the sequencing decision that ultimately set the pace for the whole nine-week programme. Fabrication, welding and NDT proceeded on a compressed but fully documented schedule, with no shortcuts taken on inspection coverage despite the time pressure.

The replacement exchanger was designed, fabricated, hydrotested and delivered in nine weeks — 40% faster than the client's overseas alternative — with full material traceability and NDT documentation included in the handover package, giving the operator's asset integrity team the same audit trail they would have expected from a twelve-month international order.