Pipeline transport are usually buried. The oil is moved through the pipelines by pump stations along the pipeline. Natural gas (and similar gaseous fuels) are lightly pressurised into liquids known as Natural Gas Liquids (NGLs). Natural gas pipelines are constructed of carbon steel. Hydrogen pipeline transport is the transportation of hydrogen through a pipe. Pipelines conveying flammable or explosive material, such as natural gas or oil, pose special safety concerns and there have been various accidents. Pipelines can be the target of theft, vandalism, sabotage, or even terrorist attacks. In war, pipelines are often the target of military attacks. It is uncertain
Central Asia–China gas pipeline from the Karachaganak, Tengiz and Kashagan gas fields. The branch line will have a capacity of 15 billion cubic meters of natural gas per year. It will be commissioned in 2014. Central Asia–China gas pipeline The Central Asia–China gas pipeline (known also as Turkmenistan–China gas pipeline) is a natural gas pipeline system from Central Asia to Xinjiang in the People's Republic of China. By connecting Turkmenistan to China’s domestic grid, this pipeline makes it possible to transport gas some 7000 km from Turkmenistan to Shanghai The initial proposal for Central Asia–China gas pipeline was presented as the Kazakhstan–China gas pipeline,