TRAINS 1 AND 2 WERE RASGAS' FIRST ONSHORE LNG TRAINS, CAPABLE OF PRODUCING 6.6 MILLION TONNES OF LNG PER YEAR.
In June 1999, the first spot cargo loaded on the LNG tanker GIMI marked a major milestone for
RasGas. Soon afterwards, in August that year, the SK Summit transported the first LNG cargo from Ras Laffan port. This cargo was the first LNG produced by Train 1, the first LNG exported to KOGAS (RasGas’ first customer), and the end of a development process that had begun years earlier, in 1971, when natural gas was first discovered off the north-east coast of Qatar. It also marked the beginning of a commercial success story that continues today
Trains 1 and 2 were RasGas’ first onshore LNG trains, capable of producing a combined 6.6 Mta of LNG per year. This plant includes inlet gas reception and treatment facilities; condensate stabilisation, gas liquefaction, sulphur recovery and loading facilities; and all necessary utility and off-site systems and infrastructure.
The construction of Trains 1 and 2 was itself an extraordinary undertaking, unlike any previous engineering project in Qatar. Yet it was still completed ahead of schedule, and the subsequent start-up periods were 45 days for Train 1 and just 11 days for Train 2. Operating staff were on site 12 months before start-up for familiarisation and training and during the 55.6 million man-hours worked, there were only two lost-time incidents (LTIs).
The project set many new benchmarks for the LNG industry. Although the trains themselves
are onshore, there is a substantial offshore infrastructure supplying the raw natural gas that they process. Three wellhead platforms supply gas and condensate from 15 offshore wells with a production capacity of 1.2 billion standard cubic feet per day (Bscfd). The gas and condensate extracted from the North Field are dehydrated offshore, then transported onshore together through a 32-inch diameter, 92km export pipeline. The offshore facilities also include two 16-inch intrafield pipelines, a riser, utilities, living-quarter platforms and a flare structure.
Trains 1 and 2 also produce 44,000 barrels per day of stabilised field condensate, barrels per day of plant condensate and tonnes per day of granulated sulphur. LNG from Trains 1 and 2 is stored in three large, insulated storage tanks the size of a football field, each with a capacity of 140,000m3.