At the heart of Sea NG’s marine CNG System is its patented Coselle™ technology. The innovation lies in using coiled pipe to safely and effectively store gas at high pressure. The result is a cost-effective solution for marine transport of natural gas over short to medium distances.
“Coselle™” is a contraction of the phrase “coiled pipe in a carousel”. A single Coselle™ consists of approximately 21 kilometres (13 miles) of 168 mm (6”) diameter steel pipe that has been coiled into a reel-like steel support structure. The reel is enclosed and then filled with inert gas. The Coselles™ are subsequently permanently installed and integrated into the hull of purpose built ships which are also filled with an inert gas. Due to the large size of the Coselles™, a relatively simple manifold with few valves and controlling systems is required. This simplicity creates a system that is more reliable and less expensive to construct and operate.
Each Coselle™ has a maximum capacity of approximately 4 million standard cubic feet (~116,000 standard cubic metres) of natural gas at near ambient temperature – a very large volume of gas for a single container.
The pipeline industry has been coiling and storing pipe for over forty years. Sea NG’s Coselle™ technology builds upon that experience. Using coiled pipe to store gas is a new application of proven technology and thus new technology risk is limited.
Marine Construction Corporation (MCC), is a wholly owned subsidiary of Sea NG Corporation registered in South Korea. MCC has designed and will construct and operate a Coselle™ manufacturing facility within the Gunsan Free Trade Zone in the City of Gunsan, South Korea.