Maintenance Services
Industrial Cleaning Services
High-pressure and chemical cleaning of pipelines, tanks, heat exchangers, and process equipment — restoring operational efficiency and extending asset life.
Service Overview
Industrial Cleaning for Oilfield Assets
Sequential International provides professional industrial cleaning services for all categories of oilfield and process plant equipment. Our trained operatives use high-pressure water jetting, vacuum systems, and approved chemical cleaning agents to restore equipment performance.
From crude oil storage tank cleaning to heat exchanger tube descaling, we deliver safe, thorough cleaning operations that comply with environmental regulations and waste disposal requirements.
“Clean equipment runs efficiently — our industrial cleaning services restore capacity, reduce energy consumption, and extend equipment service life.”
What We Deliver
Scope of Work
High-Pressure Water Jetting
Ultra-high-pressure water jetting (UHP) for pipeline internal cleaning, tank decontamination, and surface preparation.
Tank Cleaning
Safe degassing, sludge removal, and internal cleaning of crude oil, produced water, and chemical storage tanks.
Heat Exchanger Cleaning
Tube-side and shell-side cleaning of heat exchangers using hydroblasting and chemical circulation.
Chemical Cleaning
Controlled chemical cleaning circuits for scale, wax, and corrosion removal from process lines and vessels.
Vacuum Extraction
Industrial vacuum units for dry and liquid waste extraction including sludge, sand, and hydrocarbon residues.
Waste Management
Licensed collection, transport, and disposal of all cleaning residues in compliance with NESREA regulations.
How We Work
Our Service Process
Gas Freeing & Testing
Atmosphere testing and gas freeing of enclosed spaces before any cleaning begins.
Isolation & PTW
Equipment isolation, pressure bleed-off, and formal confined space permit issuance.
Cleaning Operations
Systematic cleaning using approved methods with continuous atmosphere monitoring.
Inspection & Handover
Post-clean inspection, waste disposal documentation, and handover to client.
Why Choose Us
Key Benefits
Restored Equipment Efficiency
Clean heat exchangers and pipelines operate at design efficiency, reducing energy consumption.
Extended Asset Life
Regular cleaning removes corrosive deposits that accelerate equipment degradation.
Regulatory Waste Compliance
All waste is handled and disposed of in accordance with NESREA and NUPRC requirements.
Confined Space Certified
Our operatives are trained and certified for confined space entry and rescue.
Minimal Production Impact
Efficient turnaround minimises equipment downtime during planned maintenance windows.
Environmental Responsibility
Water and chemical usage managed to minimise environmental footprint.
Industrial cleaning frequently involves confined space entry, high-pressure equipment, and hazardous substances. All cleaning operations follow a formal confined space entry procedure with stand-by rescue, continuous atmosphere monitoring, and full body harness PPE.
Capabilities
Equipment & Capabilities
UHP Water Jetting
Ultra-high-pressure jetting units up to 40,000 psi for the toughest scale and deposit removal.
Industrial Vacuum Units
High-capacity vacuum lorries for bulk liquid and dry waste extraction.
Chemical Dosing Skids
Chemical circulation and dosing systems for controlled in-situ chemical cleaning of process systems.
Gas Detection
Multi-gas detectors and continuous atmosphere monitoring equipment for confined space operations.
Tube Cleaning Tools
Rotating tube cleaning lances and brushes for heat exchanger tube-side cleaning.
Waste Disposal
Licensed waste manifests and approved disposal facilities for all categories of cleaning residue.
Plan Your Industrial Cleaning Today
Talk to our industrial cleaning team about your next maintenance window. We will provide a detailed scope, method statement, and competitive commercial proposal.