LPG check metering at pipeline and jetty receipt points

The brief

When a company buys LPG by the tonne, the seller's meter decides the invoice. Indian Oil buys LPG from GAIL at four receipt stations on the Jamnagar to Loni pipeline, and HPCL receives imported LPG from tankers at the Mangalore jetty. Both wanted their own meters on the line, so every delivery could be checked independently.

What we built

Emerson Micro Motion mass flow meters read by GE iFIX over Modbus at four IOCL receipt stations on the Jamnagar to Loni LPG pipeline (Ajmer, Jaipur, Loni and Madanpur Khader) and at HPCL's Mangalore jetty, with daily, monthly and yearly reports and a ship summary report for each tanker unloaded. We supplied, installed and commissioned the SCADA at every site.

• IOCL on the Jamnagar to Loni pipeline

  Emerson supplied Micro Motion mass flow meters as check meters at Ajmer, Jaipur, Loni and Madanpur Khader. Our iFIX SCADA reads them over Modbus and produces daily, monthly and yearly reports. With an independent figure for every delivery, IOCL recovered the money it had been losing to inaccurate readings sent to it by the supplier.

• HPCL at the Mangalore jetty

  LPG imported from the Gulf arrives by tanker, is offloaded at the jetty and travels by pipeline to HPCL's bottling plant. Micro Motion meters on the transfer line are read by iFIX, which produces a daily report and a ship summary report for each tanker. Manual recording, and the errors that came with it, ended.

• Our scope

  Supply, installation and commissioning of the complete SCADA system at each site, alongside Emerson's meters.

Outcomes