China has successfully mined flammable ice at sea after nearly two decades of research work.
The flammable ice was discovered in the South China Sea in 2007.
According to Chinese state run Xinhua, one cubic metre of combustible ice is equal to 164 cubic metres of natural regular gas.
Minister of Land and Resources Jiang Daming announced the success on May 18. The mining site was located in the Shenhu area of the South China Sea, 320 kilometres of the coast of Zhuhai City.
The trial mining started on March 28 at a depth of 4,153 feet. During the trial, around 16,000 cubic metres of gas was extracted each day.
The methane content was up to 99.5 percent of natural gas.
Footage shows the bore head being lowered down into the sea to extract the gas from the ice.
The Minister claimed that it was a major breakthrough that may lead to a global energy revolution.
The amount of predicted resources is equivalent to more than twice that of fossil fuels such as coal, oil and natural gas.
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