On-Site Services

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AOTC specializes in providing pipeline solutions as an innovative engineering solutions company. We prioritize the delivery of expert on-site services and maintain the integrity of production, process plant and pipe work. AOTC focuses on piping, pipeline integrity, maintenance, online modifications, provides comprehensive products and services for joint free leakage, pipeline inspection, intervention, isolation, repair, connection and pressure testing.

AOTC is a service driven, professional organization, and we take pride in offering the highest quality site based services. Our goal is to offer you the coast effective pipeline solutions you need in one convenient location, so you can make optimal use of your operational assets, and minimize downtime.


Our Services

Pre commissioning services

  • Tank maintenance
  • Chemical cleaning service
  • Lube oil flushing services
  • Hot oil flushing services
  • Hot water flushing services
  • Hot nitrogen blowing services
  • Hydro test
  • Steam blowing
  • Air blowing
  • Tank de-sluding
  • Internal cleaning manual and third tank nozzle
  • Internal inspection
  • Repair / replacement of bottom plates

Chemical cleaning services

  • Internal cleaning
  • De- sludging
  • Internal modification

Heat exchanger and Fin fan

  • Cover opening
  • Manual and chemical cleaning
  • Hydro test
  • Tube bullet cleaning
  • Chemical cleaning of carbon steel piping
  • Chemical cleaning of stainless steel piping
  • Decreasing treatment for removing hydrocarbon sludge or oily residues
  • Acid treatment for removing mill scale build up
  • Passivation to protect surface layer from oxidation
  • Circulation – pumping a cleaning solution around a process system
  • Soaking – used when circulation is not feasible
  • Foam – concentrated chemicals mixed with gas
  • Chemical cleaning of tanks using low pressure 3D spray head
  • Chemical neutralization
  • Exchanger chemical cleaning
  • Furnace external convection coil cleaning
  • Reactor and exchanger solvent flushing
  • Fin fan foam cleaning
  • Fin fan dry power blasting (online method)

Pipeline Service

  • Nitrogen purging & leak testing
  • Pipeline pigging & intelligent pigging
  • Pipeline online maintenance pigging
  • Pipeline stopping, pipeline freezing & pipeline by pass services
  • Pipeline leak detection
  • Pipeline geometry and location caliper survey flooding, cleaning and gauging
  • Specialized mechanical and chemical cleaning bulk dewatering
  • Drying by vacuum, nitrogen or air
  • Pipeline intelligent pigging and inline inspection
  • Tomography
  • Endoscopy (microscopy)
  • Motor current signature analysis
  • Technical bearing consultancy
  • Bearing failure analysis
  • Controlled bolting
  • Commissioning of new pipeline
  • Specialized mechanical and chemical cleaning of equipment’s and pipelines field
  • Cold Cutting Services
  • Bolt Torquing & Tensioning Services

Services Engineering

  • Testing cleaning & drying services
  • System testing with water, air or nitrogen
  • System flushing by water or air
  • System cleaning and decreasing
  • Hot oil flushing and lung oil flushing
  • Field service engineering
  • Machinery fault diagnose offline vibration analysis and troubleshooting
  • Alignment service
  • Insitu balancing