抄録
Floating LNG (FLNG) is the one of the development concepts to commercialize offshore stranded gas fields, offshore gas fields in a remote area and the associated gas of oil fields. FLNG is a barge shaped floating structure with the process, utility, storage and offloading units on it, which is single point moored with turret system. The main function of the FLNG is to produce and deliver LNG to consumers via LNG Carriers. Therefore, FLNG is generally considered as the combination of the existing technologies, which are onshore LNG plant, LNG Carrier and Floating Production Storage and Offloading (FPSO). FLNG consists of two parts, those are topside and hull. Topside is the upper part of hull, which generally consists of process plant, utility plant, offloading facilities and living quarter. Process plant generally consists of inlet separation, condensate stabilization, pre-treatment, liquefaction, fractionation and associated units. Hull is the barge part of the FLNG, which contains storage systems for the products, i.e. LNG, LPG and condensate, and other marine related equipment and machineries. There are several projects that FLNG may be applied for their gas field developments. However no project has been completed yet so far. Though FLNG is the combination of the existing technologies, it is known that there are several technical challenges, which has to be solved to realize and design FLNG concept. This paper introduce these technical challenges as below taking the Abadi LNG Project which INPEX Masela Ltd., is developing in Arafura Sea in Indonesia with FLNG solution:
· Liquefaction Process on FLNG;
· Layout for FLNG;
· Marinization of equipment on FLNG;
· LNG storage in FLNG; and
· LNG offloading from FLNG to LNG Carrier.
