The USD 200 million Zawtika Project is a gas field development located in the Gulf of Mottama, Myanmar. Saipem, an international turnkey
contractor in the oil and gas industry, was awarded the transportation and installation contract for the Zawtika processing quarters
platform and bridge. Extensive analytical work was performed to find suitable installation aids for the float-over. Various possible solutions
were also studied for pile installation.
All the installation verifications were done using MOSES. The float-over methods studied and compared included active system vs. passive
system, alignment position installation aid optimization, leg mating unit optimization, and hawser line connection. Methods considered for
pile installation included barge side launch with buoyancy collar, and a controlled launch with a hook-connected controlled upending.
Off the coast of Banten Province, Indonesia, the LIMA Flow Station and associated installations are located above the Parigi, Main Massive,
and Talang Akar formations, owned in part by Pertamina Hulu Energi Offshore North West Java (PHE ON WJ). Studies indicated the station
would soon be unreliable for safe operation due to subsidence. PHE ON WJ nominated P T. Timas Suplindo for the USD 50 million LIMA
Subsidence Remediation Project.
The EPCI contract involved raising the most critical platforms and facilities by 4 meters to ensure their continued safe operation through
the duration of the owner’s production sharing contract, which ends in 2026. P T. Timas Suplindo remedied the subsidence problem by
implementing a simultaneous jacking system to raise the decks of three platforms, associated bridges, and flare tower. SACS was used in the
PT. Timas Suplindo | Tangerang, Indonesia
LIMA Subsidence Deck Raising Project
Saipem | Gulf of Mottama, Myanmar
Innovation in Offshore Engineering