Oil & Gas
Thermal equipment engineered for upstream, midstream and refining service — built and serviced in Abu Dhabi.
What This Sector
Demands
Dolphin Group is an ADNOC-approved, ICV+ certified manufacturer of API 660-compliant shell & tube exchangers, air-cooled coolers and pressure vessels for oil & gas service. Operating from its Mussafah, Abu Dhabi facility for over 40 years, it delivers emergency exchanger repair and drop-in replacements to upstream, midstream and refining operators worldwide.
Sour service degradation
H₂S and CO₂ attack tube bundles and welds. Material selection to NACE MR0175 decides whether an exchanger lasts two years or twenty, and a wrong call shows up as cracked welds and leaking tubes long before the next scheduled turnaround.
Shutdown-critical lead times
A failed exchanger on a production train costs millions per day. Overseas fabrication lead times of 6–12 months are not an answer when a unit is down now — operators need drop-in replacements and emergency response measured in hours, not quarters.
Fouling and capacity loss
Crude preheat trains and gas coolers lose duty to fouling — driving energy cost up and throughput down between turnarounds. Left unaddressed it forces earlier, more expensive shutdowns instead of running to the planned maintenance window.
What We Deliver for
Oil & Gas
The specific heat exchange equipment and services we design, fabricate and maintain for this sector.
Shell & Tube Heat Exchangers
Crude preheat trains, gas coolers, reboilers and overhead condensers to API 660.
Air-Cooled Heat Exchangers
Gas compression aftercooling, condensing and process cooling to API 661.
Pressure Vessels
Separators, KO drums, pig launchers/receivers, filter vessels.
Proven in Oil & Gas
Real outcomes from real oil & gas projects — not catalogue claims.
Offshore platform exchanger replacement
ASME U-stamped drop-in replacement delivered in 9 weeks — 40% faster than the overseas alternative.
Gas plant turnaround — 34 exchangers
Cleaning, NDT, repair and hydrotest of 34 units completed inside a 28-day window.
ADNOC-approved, ICV+ certified
Qualified to the procurement standards ADNOC group companies require, with in-country value that scores directly on operator tenders. That status is one of roughly 70 ICV+ certifications held in the UAE, so it carries real weight against competing bids.
Why Oil & Gas
Operators Choose Dolphin
ADNOC-approved, ICV+ certified
Qualified to the procurement standards ADNOC group companies require, with in-country value that scores directly on operator tenders. That status is one of roughly 70 ICV+ certifications held in the UAE, so it carries real weight against competing bids.
Hours, not weeks, to site
Emergency response and drop-in replacement bundles mobilise from Mussafah in hours — overseas fabrication cannot match that when a production train is down. An offshore platform exchanger replacement delivered ASME U-stamped in 9 weeks, 40% faster than the overseas alternative, and a 34-exchanger gas plant turnaround was completed inside a 28-day window.
40+ years of sour-service experience
Four decades of NACE MR0175 material selection and API 660 fabrication inform every exchanger and vessel we build for oil & gas duty. That track record is what lets us call H₂S and CO₂ attack on tube bundles and welds a decided material question, not a guess, before it shows up as a cracked weld.
Frequently Asked Questions
Yes. We design and fabricate to API 660 supplementary requirements alongside TEMA Class R for petroleum service, with ASME U-stamp on every unit.
Yes. Material selection follows NACE MR0175/ISO 15156, with hardness-controlled welding and PWHT where the service demands it.
Emergency crews and spares mobilise from Mussafah within hours for UAE sites, with drop-in replacement bundles typically delivered in weeks rather than the 6–12 months common with overseas fabrication.
Yes. We reverse-engineer from the physical unit and nameplate data, verify thermal performance in HTRI, and fabricate a dimensionally identical drop-in replacement.
Duplex, super duplex and NACE-compliant carbon and low-alloy steels are standard, selected against the specific H₂S, CO₂ and chloride levels in the service.
Yes. We plan and execute multi-unit cleaning, inspection, repair and retube campaigns inside fixed turnaround windows, with documented coverage for every exchanger.
Yes. Dolphin Group is ADNOC-approved and ICV+ certified — one of roughly 70 ICV+ certified companies in the UAE.
Send your datasheet, TEMA sheet or existing unit nameplate details through our RFQ form or to connect@dolphin.ae — we typically respond within two working days.
Talk to Our Oil & Gas Engineering Team
Tell us about your duty requirements — our engineers will help you find the right heat exchange solution and get you a quote.