Truck loading in the oil & gas industry

Loading of refined products into truck, train or ship

Truck transport is mainly used for transport of refined products by road to their end destination, to a local supplier or customer. This destination might be a local fuel station storage tank, from where it is sold on to the public. Other larger users, like distributors and bunkering service suppliers, if not served by pipeline, might have fuel delivered by railcar tanks on a train, or by a ship or barge. A tank truck loading system is used to transfer the refined products into the road tanker, railcar, or ship’s tank: this is a custody transfer and so accurate metering is required. Any tanker loading system typically uses two hose connections - one to load the liquid product into the truck and another to recover and collect the fumes that come out of the truck as they are being replaced by the delivered liquid.

Requirements
  • Risk of overfill or dry run
  • Ensure continuous supply of crude oil or refined product
Requirements
  • Control of the tank farm
  • Inventory measurement
Requirements
  • Maintenance of the non-explosive atmosphere
  • Low flows with mostly low pressures
  • Monitoring of minimum throughput
Requirements
  • Avoid damage to bearings of the pump
  • Indication of the flow
Requirements
  • High accuracy measurement of crude oil and refined product
  • Custody transfer approvals required
Requirements
  • Visualisation and monitoring of critical processes
  • Control of reporting, trends and alarm handling
  • Statistical evaluation of measurement data
Requirements
  • Integration of flow computers, PLCs, supervisory computers and printers
  • Installation of single flow computers up to fully redundant cabinet
  • Complying with custody transfer requirements
Requirements
  • Fully certified according to local and international metrology requirements
  • Lowest possible measurement uncertainty
  • High reliability and low maintenance
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