Quality Assurance – Nigeria LNG

logo-lngNigeria LNG Limited is jointly owned by Nigerian National Petroleum Corporation, Shell, Total and Eni. It was incorporated in 1989 to harness Nigeria’s vast natural gas resources and produce Liquefied Natural Gas (LNG) and Natural Gas Liquids (NGLs) for export from the LNG Plant Complex, Bonny Island. In 1999, Nigeria LNG (NLNG) invited tenders for the redraw of all its 341 Process Engineering Flow Scheme (PEFS) drawings.

The contract was awarded to an offshore company due to the low price tendered. Unfortunately on completion of the contract NLNG became aware of serious quality issues with the drawings. Errors found included; Tag Nos; Equipment Nos; Line Nos; Class Nos; line types; layering; line thickness; arrow direction; revision status; text styles and height; dimensions; symbols; attributes.

NLNG sought advice from Shell, one of its owners, who recommended that the entire 341 PEFS should go through an independent Data Validation and Quality Checking exercise. Furthermore, Shell recommended Cad-Capture as a solutions provider, having successfully redrawn 2000 PEFS for Shell UK Stanlow Refinery in 1997.

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