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BS is providing classification services to Unocal
and its Unocal Makassar Ltd. subsidiary for the next phase in
the company’s development of the West Seno Field, located
in the deep |
waters off East Kalimantan, Indonesia. ABS will class a second tension
leg platform (TLP), West Seno B, reports Ian Simpson, ABS Manager
of Energy Project Development.
“Unocal is currently considering bids for the construction
and installation of TLP-B, with ABS selected to provide classification
services from the very beginning to streamline the process,”
said Simpson.
ABS classed Unocal’s West Seno TLP-A in early 2003, becoming
the first TLP in Southeast Asia and the first well of a 28-well
drilling program.
In classing the TLPs, ABS is determining the structural and mechanical
fitness of the facilities. ABS also has classed a floating production
unit (FPU) for the project. TLP-A is located 300 to 500 feet from
the FPU, and TLP-B will be located two to three miles away. Produced
fluid is routed to the FPU from TLP-A via multiphase flexible flowlines
and from TLP-B via steel catenary risers and rigid intrafield pipelines.
The ABS-classed FPU supports full separation and fluid treatment
systems, utilities, pumps, compression systems, a control power
distribution unit, drain systems and a ballast system. The FPU exports
stabilized oil and gas streams via newly installed separate pipelines
approximately 38 miles to the Santan terminal in East Kalimantan.
The process facilities for oil and water are designed as a single
train for peak rates of 60,000 barrels per day of oil and 40,000
barrels per day of water. The gas facilities consist of three export
compression trains designed for 150 million standard cubic feet
per day of produced gas and 20 million standard cubic feet per day
of gas lift.
Unocal anticipates future development of eight more offshore fields
in the area, including: Bangka Channel, 2005; Ranggas, 2006; Merah
Besar, 2007; Gehem, 2008; Gendalo, 2010; Gandang, 2013; and Gada
and Gula, 2013.
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