Pipeline Pre Commissioning

Pipeline pre-commissioning is the process of proving the ability of a pipeline and piping systems to contain product without leaking. This ...

Pipeline pre-commissioning is the process of proving the ability of a pipeline and piping systems to contain product without leaking. This product may be liquid, gaseous or multiphase hydrocarbons, water, steam, CO2, N2, petrol, aviation fuel etc.

Pre-commissioning is the series of processes carried out on the pipeline before the final product is introduced. The process during which the pipeline is made "live" i.e. the product is put in the pipeline, is called pipeline commissioning or start-up.
Despite being seen as an offshoot, or minor part of the business for the larger oil service companies, the pipeline pre-commissioning industry possesses quite a large portfolio of services including, but not limited to the following services:
·         Pipeline Cleaning - this is carried out by pushing pigs or gel pigs through the pipeline to remove any debris dirt.
  • ·         Pipeline Gauging - this is carried out to prove the dimensional quality of the internal diameter of the pipeline.
  • ·         Pipeline Filling (Flooding) - which can be carried out by propelling pigs through the pipeline with water or free flooding with water (normally for smaller or unpiggable pipelines).
  • ·         Hydrotesting - this is a process by which the pipeline in question is pressure tested to a predefined pressure above the operating design pressure of the pipeline.
  • ·         Dewatering - this involves pushing pigs through the pipeline propelled by a gas to remove the water prior to start-up.

·         Umbilical Testing and Commissioning - The flushing, cleaning, hydraulic testing and electrical testing of all subsea control umbilicals is completed to a high degree of cleanliness in a safe and efficient manner.
  • ·         Fiber Optic Testing
  • ·         Leak Testing
  • ·         Dewatering
  • ·         Air Drying
  • ·         Nitrogen Drying
  • ·         Vacuum Drying
  • ·         Methanol Swabbing
  • ·         Glycol Swabbing
  • ·         Nitrogen Packing


Sumber
http://www.halliburton.com/en-US/ps/production-solutions/pipeline-process-services/pipeline-services/precommissioning/

https://en.wikipedia.org/wiki/Pipeline_pre-commissioning

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