Tellurian Inc., through its subsidiaries Driftwood LNG LLC and Driftwood Pipeline LLC, has applied to the Federal Energy Regulatory Commission (FERC) to construct and operate a liquefied natural gas (LNG) export facility near Lake Charles, Louisiana, USA, and a 96-mile (154-km) pipeline connecting the facility to interstate pipelines.
Tellurian expects the Driftwood LNG project to begin construction in 2018 and produce its first LNG in 2022, with full operations beginning in 2025. Once complete, the terminal will be able to export up to 29 million tons (26 million tonnes) of LNG per year.
The LNG export facilities will consist of five LNG plants, three LNG storage tanks, marine facilities, and associated infrastructure and support facilities. Each LNG plant will consist of one gas pre-treatment unit (acid gas removal unit, dehydration unit, and mercury removal unit), one condensate stabilization unit, and four heavy hydrocarbon removal and liquefaction units.
Three LNG storage tanks, each with a net 8.3 million cu.ft. (235,000 m3) capacity and a gross capacity of 8.7 million cu.ft. (247,650 m3), will be installed to house LNG from the five plants. Each tank will be a full containment design, with a 9% nickel steel inner tank, post-tensioned concrete outer tank, and suspended insulation support deck.
The marine facilities will include three berths designed to allow the safe berthing and un-berthing of three LNG ships up to 7.6 million cu.ft. (216,000 m3) each. The marine facilities will have cryogenic piping and loading arms for loading LNG ships. At each berth, a vapor management system, including a vapor arm, will be installed to transfer boil off gas (BOG) from the LNG ship to the BOG handling system. The LNG storage tanks will be fitted with pumps to transfer LNG to ships at each berth at a loading rate of up to 423,776 cu.ft. (12,000 m3) per hour, per ship. Two berths will have the capability to load LNG simultaneously. At full capacity, the Facility will load a ship a day or approximately 365 ships per year.
The 96-mile interstate natural gas pipeline and compression and related facilities will be capable of transporting up to 4 Bcfd (113 x 106 m3/d) of natural gas to the Driftwood LNG facility.
Driftwood will construct and operate three compressor stations along the pipeline. The compressor stations will include gas turbine driven centrifugal compressors to boost pipeline pressure.
Gillis Station will be located in Jefferson Davis Parish, Louisiana, will include five natural gas powered compressor turbines. The station will have a total rated capacity of approximately 150,000 hp (111,900 kW).
Basile Station will be located in Acadia Parish, Louisiana, and will include three natural gas powered compressor turbines. The station will have a total rated capacity of approximately 78,500 hp (58,561 kW).
Mamou Station will be located in Evangeline Parish, Louisiana, and will include two natural gas powered compressor turbines. The station will have a total rated capacity of approximately 41,000 hp (30,586 kW).
Houston-based Tellurian was founded in 2016 by former Cheniere Energy CEO Charif Souki and former Parallax Energy Chairman Martin Houston. The company is working to develop LNG projects along the Gulf Coast of the United States.
In November, GE Oil & Gas made a US$25 million investment in Tellurian. Tellurian President and CEO Meg Gentle said, “This investment represents another step forward in the development of Driftwood LNG, where we are working together with GE to design the lowest cost liquefaction for the global market. GE Oil & Gas has provided technology for LNG facilities worldwide for over 25 years and is a pioneer in innovation and a leader in reliability. We look forward to a long and beneficial partnership with the GE team.”