Bayu-Undan

Bayu-Undan Field

 The Bayu-Undan surface facilities consist of three primary components:
 
  • A Central Production and Processing (CPP) complex
  • An unmanned Wellhead Platform
  • A Floating Storage & Offloading facility (FSO) Bayu-Undan

The Central Production and Processing complex - comprises two separate platforms linked to each other by a bridge.The platforms are the Drilling, Production and Processing (DPP) platform and the Compression, Utilities and Quarters (CUQ) platform.The combined topsides facilities weigh close to 26,000 metric tons, and they sit on top of two eight-pile steel jackets.

Both jackets are built from high strength steel to withstand extreme cyclones and earthquakes as well as collisions with boats. The decks were installed onto the jackets using the “float-over’ method.

The DPP platform provides approximately two thirds of the 1.1 billion standard cubic feet per day of raw liquid rich gas from the reservoir via four production wells. It also provides the processing facilities to separate the well fluids into gas and liquid products

The CUQ platform provides the compression facilities for the processed gas to be either reinjected back into the Bayu-Undan reservoir or exported to shore via a subsea pipeline.It also contains living quarters for eighty people and a helideck.

The unmanned Wellhead Platform is located 7.4 kilometres to the east of the CPP platform and comprises of 1,500 metric tons of topsides. It serves as a secondary production centre for the field, normally supplying approximately one third of the 1.1 billion standard cubic feet per day of raw liquid rich gas to the DPP platform via a subsea pipeline.

The FSO is equipped with refrigeration, liquefaction, and gasification facilities and can store 130,000 cubic metres of condensate and 95,000 cubic metres combined of propane and butane.

Condensate offloading is conducted in a tandem shuttle tanker bow to FSO stern configuration, whilst LPG offloading is carried out in side by side configuration.

The FSO is permanently positioned 2.2 kilometres north of the CPP complex and is linked to it by four subsea pipelines carrying condensate, butane and propane as well as fuel gas for power generation. 

Bayu-Undan to Darwin Pipeline

A 502 kilometre 26-inch subsea pipeline connects the Bayu-Undan facility, located in the Timor Sea, to the Darwin LNG plant in Darwin, Australia. The pipe laying commenced in Darwin Harbour in August 2004 and was completed in January 2005.