摘要
By analysis of the characteristics of unconventional hydrocarbon resources,this paper assesses the potential for unconventional hydrocarbons in China,summarizes the key technical progress in exploration and development,and discusses the prospects and developing strategies of unconventional hydrocarbons.The resources of unconventional oil and gas in China are abundant.The recoverable tight gas is 8.8×1012 12.1×1012m3,the recoverable shale gas is 15×1012 25×1012 m3,the recoverable coalbed methane is 10.9×1012m3,the recoverable tight oil is 13×108 14×108t,and the recoverable shale oil is 160×108t.There is also some resource potential for oil sand.Such key techniques as the full-digital seismic exploration technique,low permeability and low resistivity reservoir identification technique have been developed and their applications in oil and gas fields obtained good results.Tight gas and tight oil are the most realistic to develop in China,and the development and utilization of coalbed methane and shale gas just begins.In the next ten or twenty years,the production of unconventional hydrocarbons in China will increase remarkably and play an important role in national hydrocarbon resources.