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Our Profile
Plantsite Location
The Arun LNG plant, owned and
built by Pertamina is located at Blang Lancang,
Lhokseumawe region, in the special province of Aceh
along the northern coast of Sumatra.
The plant location was chosen because it satisfactorily
met the criteria of access to deep water, proximity to
the gas field, and minimum site preparation costs.
Plantsite Discovery
The decision to build the Arun
LNG plant followed the discovery in 1971 of one of the
world's largest gas reservoirs by Mobil oil Indonesia
Inc. working under a production sharing contract with
Pertamina.
PT. Arun NGL Company's well publicized success has
exceeded expectations and the plant is presently one of
the largest LNG processing facilities in the world.
As the nation's reliance on
LNG revenues continues to grow, the challenges
confronting PT. Arun also increases. Some of the
major challenges are human resource development;
mastery of advanced technologies; new growth in a
competitive market;daily operational demands which
require optimum levels of safety and security;
maintaining, stabilizing and improving upon
production levels; and increasing the realibility of
plant performance.
About Plantsite
Construction
Construction of the Arun
LNG processing facilities, which initially consisted
of 3 LNG trains, was set in motion in late
1974 by Bechtel Inc., as the main
contractor. Mobil Oil Indonesia Inc., as Pertamina's
production sharing contractor, discovered, developed
and presently operates the Arun gas field which
provides the entire feed stock for the Arun LNG
plant.
Feed gas was first introduced into the plant in
March 1978. Train 1 yielded its
first drop of LNG in August 1978,
train 2 in September 1978 and train
3 in February 1979. Condensate
production commenced in May 1977.
The Arun LNG processing plant is operated by PT Arun
NGL Co., a non-profit operating company. PT Arun NGL
Co. is owned by
Pertamina (55%), Mobil Oil Indonesia Inc. (30%) and
JILCO (Japan Indonesia LNG Co. - 15%),
which represents the buyers.
In early 1981, the gas treating
units of Trains 1, 2 and 3 were modified to increase
the capacity to 115% of their original design of 1.7
million tons of LNG per train per year. In
1982, the Arun plant expansion program
started with 2 additional trains (4 & 5). This
expansion increased annual production capacity by an
additional 3.4 million tons, all of which was
exported to Japan. The expansion project was awarded
to Chiyoda Chemical Engineering and Construction Co
Ltd., in association with Mitsubishi Corporation and
PT Purna Bina Indonesia.
Train 4 came on-stream in October 1983
and train 5 in January 1984. The
expansion continued with train 6, engineered and
constructed by JGC Corporation, and was on-stream in
October 1986, one month ahead of
schedule.
The contruction of the LPG facilities was started in
February 1987. The project included
extraction facilities in the Arun gas field and at
the Arun LNG plant. Separate LPG storage and loading
facilities located at the Arun LNG plant were also
built. This project was awarded to JGC Corporation
and was completed in October 1988.
In order to fulfil targeted production assigned by
the buyers, a capacity improvement project was
initiated in 1990 and completed in
1993. Several pieces of LNG Trains
equipment were modified and the plant capacity now
reaching 138% of their original design capacity.
These modifications increase the yield to more than
2 million tons of LNG per train per year.
To meet future demand, new gas fields will be
integrated into the existing gas supply system. the
South Lhoksukon gas field located 10 miles South
inland of the Arun gas field will be online. Also,
the Pase gas field which is located further south
and the NSO gas field located 100 miles north east
offshore of the Arun plant will be online before the
year 2000.
The new gas fields will ensure adequate gas supply
to meet contractual LNG demand until the year
2015.
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