Shale gas is a high quality and efficient clean energy,natural gas fracturing China's shale gas reserves in the world, its effective development and utilization for the adjustment of China's energy structure, promote energy conservation, prevention of air pollution is important.
Research on shale gas exploration and development technology patents in the field situation and risks showed that: in the oil, Sinopec as the representative of Chinese enterprises with strong technical strength, but US companies patent portfolio in China intentions clear, Chinese enterprises should strengthen the horizontal well trajectory control fracturing method, fracture monitoring and other key technology research and development and patent portfolio.
Through patent search, the global shale gas exploration and development in the field of 40,000 patent applications, of which, the United States ranked first application, ranked second in China.Shale gas revolution  Patents mainly in the hands of Schlumberger, Baker Hughes, Halliburton and other three US companies, PetroChina, Sinopec ranked the world's fourth respectively, 7th.