Crude Oil Wellhead Platform Revamp Nigeria

Project     Crude Oil Wellhead Platform Revamp Nigeria
Client    Mobil Producing Nigeria Unlimited (MPNU)
Country    Nigeria
Project-Period    1998 - 1999


Revamping of six wellhead platforms, riser repair

Technical data:

Three or four pile supported crude oil production facilities with three levels platforms are compromising mainly of wellheads, manifolds, test separators and flow lines.
Location is approx. 30 miles offshore in the bight of Basim (offshore Eket) with water depth of approx. 20 to 50 m.

ILF Services:

Improvement / refurbishment of five (5 out of 38) platforms as being crude oil production facilities (in order to comply with API 14C) covering:

  • As-built surveys ( equipment layouts and P & ID´s)
  • Detailed engineering for the required changes
  • Replacement of:

    • all valves
    • instrumentation
    • instrument / power gas skids
    • sump tank skids
    • wellhead control panels
    • wellhead pilot panels
    • personnel shelters
    • hoists
    • aids to navigation
    • platform extensions

  • Installation of a new vent scrubber
  • Safety evaluation & HAZOP Study
  • Material bulks
  • Bid package preparation for construction works
  • Riser repair engineering (incl. split sleeve repair method, RISER CLAD, corrosion evaluation acc. To ASME B31G)