Oil Rig Deep Cleaning
Heavy offshore drilling platform decontamination and mud tank stripping.
Heavy offshore drilling platform decontamination and mud tank stripping.
Offshore Oil Rig & Semi-Submersible Deep Decontamination
Column hydro-blasting, drilling riser flushes, mud pit de-mucking, and splash-zone stripping.
Offshore drilling rigs and production platforms operate in punishing marine environments where heavy crude oil, synthetic drilling muds, and marine growth accumulate simultaneously.
Chow Marine deploys elite offshore decontamination strike teams equipped with Class 1, Division 1 explosion-proof ultra-high pressure water jetting units and pneumatic sludge transfer pumps.
Our crews specialize in deep cleaning drilling mud pits, shale shaker sumps, crude oil storage cells, and marine splash-zone tubular jackets. Using 40,000 PSI heated water lances, we strip hardened oil-based muds (OBM) and heavy crude residues down to bare metal in preparation for regulatory classification surveys.
All operations include continuous 4-gas telemetry, certified atmospheric testing for H₂S and explosive vapors, and closed-loop waste containment adhering strictly to MARPOL Annex I environmental standards.
Gas-Free Permitting & Hazardous Isolation
Atmospheric gas testing, LEL monitoring, lock-out of chemical transfer manifolds, and permit-to-work sign-off.
Hot Water Hydro-Washing
Deployment of 95°C water at 20,000–40,000 PSI to melt, liquefy, and strip heavy paraffin and crude accumulations.
Pneumatic Sludge Evacuation
Heavy-duty pneumatic diaphragm and vacuum transfer of viscous sludge into certified offshore tote tanks.
Class Inspection Clearance
SSPC-SP 12 visual inspection verification with attending rig superintendent and classification society surveyor.
| Safety Classification | Class 1, Div 1 / ATEX Zone 1 Certified |
| Water Jet Temp | Ambient up to 95°C Heated Water |
| Operating Pressure | Up to 40,000 PSI Ultra-High Pressure |
| Sludge Pumping | Pneumatic Double-Diaphragm 60 m³/hr |
| Offshore Crew | BOSIET / HUET / Confined Space Certified |
Semi-Submersible Rig Special Survey Mud Pit Overhaul
Turnkey cleaning and gas-freeing of 6 active synthetic mud pits, 2 reserve tanks, and 24 drill pipe riser sections during scheduled port call.
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Can your equipment be transported offshore via crew boat or crane?
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Can your equipment be transported offshore via crew boat or crane?
Yes. All our offshore UHP units, compressors, and pump packages are skid-mounted in DNV 2.7-1 / ISO 10855 certified lifting frames with certified slings for safe crane transfer.
02
How do you handle hazardous H2S gas when washing oil tanks?
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How do you handle hazardous H2S gas when washing oil tanks?
We utilize continuous electronic multi-gas telemetry monitors with remote repeaters, supply positive-pressure airline breathing systems, and apply chemical H₂S scavenger washes before jetting begins.
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What certifications do your offshore personnel maintain?
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What certifications do your offshore personnel maintain?
All team members hold active OPITO BOSIET, HUET, CA-EBS, Confined Space Rescue, WHMIS, and Fall Protection certifications.
Ready To Mobilize Crew & Tooling?
Connect directly with our Hamilton operations superintendent for emergency rapid mobilization, site evaluation, and firm engineering proposals.