Waterjet services for refineries and petrochemical plants
Dezu delivers the refinery scopes that need water instead of flame or impact — hydro demolition, flame-free cold cutting, tank and floating roof seal services, and heat exchanger cleaning — as the specialized subcontractor international EPC chains select. Delivered on Philippine petrochemical expansions and a Pacific fuel terminal.
What does Dezu do inside refineries and petrochemical plants?
The scopes that need water instead of impact or flame: hydro demolition for structural repairs, flame-free cold cutting on tanks and lines in hydrocarbon service, storage tank cleaning and floating roof seal replacement, and heat exchanger tube cleaning during turnarounds. All delivered by a PCAB-licensed contractor with documented project safety and health programs.
Has Dezu delivered under EPC contract chains?
Yes. On a petrochemical plant expansion, Dezu delivered specialized hydro demolition under an international EPC joint venture and a major Philippine construction company — exposing a shear key so a structure that tilted from ground settling could be lifted and corrected. International EPCs repeatedly select Dezu as the specialized subcontractor.
Why do hydrocarbon facilities specify waterjet methods?
Waterjet methods offer flame-free cutting, selective concrete removal and process cleaning. Each application still needs asset release, isolation, atmosphere controls, containment and permits determined for the work. Method selection does not by itself make an operating area safe.
For turnarounds where tube integrity testing follows the cleaning, the source-cited guides on tube inspection after cleaning and IRIS vs eddy current vs APR cover how bundle cleanliness decides what each method can see — including a published cleaning-validation case on a petrochemical exchanger where water jetting alone left 50–80% blockages that 100% screening caught.
Relevant proof
Shear Key Exposure — Petrochemical Plant Expansion (2021)
Selective hydro demolition under an international EPC joint venture. Full case study.
Crude Oil Tank Door Sheet — Guam (2022)
Flame-free cold cut on a tank converting to ULSD service. Full case study.
Floating Roof Seal Replacement — Three Naphtha Tanks (2022)
External floating roof seal systems repaired and replaced at a petrochemical plant. Register at projects.
Planning the work
Need more evidence about tube condition?
Review APRIS tube-screening and cleaning-validation enquiries · Review poor performance after cleaning · Plan chiller tube inspection
Turnaround or repair scope in a hydrocarbon facility?
Send the scope and the window. We reply with a method recommendation and a scope-based quotation.