EPC of Low-Pressure Remote Gas Dehydration Units

  • Tatweer Petroleum
  • Bahrain
  • Middle East
Gas Dehydration
Velosi was appointed by TDE Overseas Limited/ Tatweer Petroleum to provide consultancy services for QRA and other HSE studies for the project facility.


The scope of this project was to install Remote Gas Dehydration Units, which comprise Gas Dehydration Units and various Off-Plot facilities as described below:

  • Install Gas Dehydration Unit(S).
  • Install Pressure Control Valves on the wet gas line upstream of the GDU.
  • Install gas-gas exchanger
  • Install fin fan cooler.
  • Installation of dry gas metering system.
  • Install Condensate lines from GDUs to nearest Well Manifolds.
  • Install Dry Gas Lines from the GDU to the Gas transmission network through the nearest J/O.
  • Instrument Air Packages including Air Receiver.
  • Instrument Airline from the IA packages located at GDU to the respective wellhead facility.
  • Install Flare Package including knockout drums.
  • Install fuel gas line from GDU to associated Wellhead
  • Install Glycol and HC Closed Drain System
  • Install Chemical Injection (Anti-Foam, pH Buffer, Corrosion Inhibitor)
  • Install Glycol Make-Up System
  • Install Vent Gas Incinerator


Velosi’s expert technical team efficiently conducted the studies by reviewing and compiling input data, clarifying inputs, and preparing a final report with conclusive outcomes. The models for these safety studies used PHAST & SAFETY 8.4 which encompasses all risks, including unforeseen component failures.


Team Velosi developed the following deliverables:

  • Quantitative Risk Assessment (QRA) Study Report Including ALARP Study.
  • Evacuation, Escape and Rescue Assessment (EERA) Report
  • FIRE AND Explosion (FEA) Study
  • Building Risk Assessment (BRA)
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Mr. Ijaz Ul Karim Rao
Ijaz Ul Karim Rao
MD, Velosi Asset Integrity Limited

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