This complete system delivery for five tanks included (per tank):
- One radar gauge, type Rosemount RTG 3960 with WM 660 emulation, for secondary level measurement.
- Two servo gauges, type Whessoe 1143, for primary level and Hi-Hi alarm.
- One Whessoe 1146 LTD (Level, Temperature and Density) profiler.
- Two Rosemount Field Communication Units, type FCU 2160; one serving three tanks and the other serving two tanks.
MHI (Mitsubishi Heavy Industries Co. Ltd) was responsible for tank construction and instrumentation.
The installation comprises three LNG tanks, in operation since December 2007/January 2008. The complete system delivery included:
- One radar level gauge per tank, type Rosemount RTG 3960.
- One Rosemount Field Communication Unit, type FCU 2165. The system solution also comprises integration of capacitive gauges from Foxboro.
- PCs and cabinet.
- LMS tank management software from MHT, which communicates with a DCS.
- One Scientific Instrument 6290 LTD (Level, Temperature and Density) profile gauge per tank.
The Japanese engineering company, IHI (Ishikawajima-Harima Heavy Industries Co. Ltd), was responsible for tank construction and instrumentation.
One more tank was built and installed at the existing terminal in 2007. The instrumentation includes:
- Two Rosemount RTG 3960 radar gauges for secondary level and Hi-Hi alarm.
- One Rosemount Data Acquisition Unit (DAU).
- One Rosemount Multi-spot Thermometer (MST), type NL-Cryo.
- One Whessoe LNG Manager inventory software license
- One Whessoe 1146 LTD (Level, Temperature and Density) profiler.
- Two Whessoe 1143 gauges for primary level and Hi-Hi alarm.
Two tanks are equipped with radar for all level applications. An additional tank is under construction and it will have identical instrumentation. The delivery included:
- Three Rosemount RTG 3960 radar gauges per tank; for primary and secondary level, plus a third device for Hi-Hi alarm.
- Four Rosemount Data Acquisition Units (DAUs) per tank; two on tank top and two at tank side.
- Two Rosemount Multi-spot Thermometer (MST), type NL-Cryo, per tank.
- One Rosemount Field Communication Unit, type FCU 2165, in total for the two tanks.
- LMS tank management software from MHT.
- One Scientific Instrument 6290 LTD (Level, Temperature and Density) profile gauge per tank.
Zachry was the contractor responsible for instrumentation.
Five tanks are planned to be in operation during 2008. The main contractor for this project, CB&I (Chicago Bridge & Iron Company N.V.), has specified the following instrumentation for the site:
- One Rosemount RTG 3960 radar gauge per tank for primary level measurement.
- One Rosemount Data Acquisition Unit (DAU) per tank.
- One Rosemount Multi-spot Thermometer (MST), type NL-Cryo, per tank.
- Two Rosemount Field Communication Units (FCUs), type FCU 2160, in total for the five tanks.
- One Whessoe LNG Manager inventory software license.
- One Whessoe 1146 LTD (Level, Temperature and Density) profiler per tank.
The Pluto LNG project is probably the fastest developed LNG project from
discovery of the gas field in 2005 to the production of the first gas in late 2010.
The Pluto project is a joint venture between Woodside (90%), which also is the
operator, Tokyo Gas (5%), and Kansai Electric (5%). CB&I in London is the
contractor.
The tank gauging system consists of equipment for five tanks (two LNG tanks and three
condensate tanks), and includes:
- One radar gauge, type Rosemount RTG 3960 per tank for Hi-Hi level alarm.
- One FCU, type 2160.
Whessoe Process Control is the system integrator and is supplying LNG inventory management software, servo gauges,
type 1143 and LTD gauges, type 1146.
Gas will be processed from the Pluto and Xena gas fields, located in the Carnarvon Basin about 190 km north-west of
Karratha, Western Australia. The Pluto gas field is estimated to contain a total
dry gas volume of 4.4 trillion cubic feet (Tcf). The smaller Xena field holds an
additional 0.6 Tcf volume gas reservoir.
Construction of the storage tanks and fabrication of the offshore and onshore infrastructure is underway.
The project includes a complete system delivery for five tanks, made in October 2007.
- Each tank is equipped with three radar gauges, type Rosemount RTG 3960, mounted on still-pipes. One gauge is used as a primary level device, another is used for secondary level and the third for Hi-Hi and Lo-Lo alarm detection. In this project, radar is the preferred technology for all three independent measurements.
- Each tank has two Scientific Instrument LTD 6290 Level, Temperature and Density profilers.
- Each tank has one dedicated PC with the LMS inventory and management software from MHT in the control room. Tank data is also fed into a DeltaV host computer system.
Qatargas II comprises some of the world’s largest Prestress Concrete LNG storage tanks, 50 m high and with a net capacity of 140 000 m
3 each.
The first tank is estimated to be in operation in early 2008, with the next ones being started up within one month intervals. IHI (Ishikawajima-Harima Heavy Industries Co. Ltd), a leading Japanese engineering company, is responsible for tank construction and instrumentation within the project. The Qatargas II project is split between Qatar Petroleum (65%), ExxonMobil (18.3%) and Total (16.7%). The project provides two additional very large gas liquefaction trains at the Ras Laffan industrial city natural gas facility in Qatar. Each new train is capable of processing in excess of 5.3 mtpa of natural gas for export by LNG tankers.
The delivery includes equipment for one tank, 46 m (150 ft) tall and with a diameter of 30 m (100 ft):
- One Rosemount RTG 3960 for secondary level measurement. The relay outputs in the radar level gauge are used for pump-and valve shutdown.
- One Scientific Instrument LTD 6290 for primary level, combined with level, temperature- and density profile measurement.
The system solution comprises integration to the Foxboro DCS via the RS485 interface.
CB&I (Chicago Bridge & Iron Company N.V.) was the contractor, also responsible for building the tank.
Rosemount RTG 3960 radar gauges have been used for more than 10 years to measure level at several LNG import terminals in Japan. Rosemount Tank Gauging equipment has been delivered to:
- Ohgishima Terminal (Tokyo Gas Co. Ltd.): Three underground tanks, 60 m (213 ft) high, with 200 000 m3 capacity.
- Chita Midorihama Works (Toho Gas Co. Ltd.): One semi-underground tank, 65 m (213 ft) high, with 200 000 m3 capacity.
- Himeji LNG Terminal (Osaka Gas Co. Ltd. and Kansai Electric Power Co. Ltd): One cylindrical on-ground tank, with 180 000 m3 capacity.
- Sakai LNG Terminal (The Kansai Electric Power Co. Inc.): Three cylindrical on-ground tank, with 140 000 m3 capacity.
- Kagoshima LNG Terminal (Nippon Gas Co. Ltd.): One cylindrical on-ground tank, with 50 000 m3 capacity.