At the beginning of this century , America , Canada on the North American continent exploitation of tight reservoir oil and gas , coal-bed methane , shale gas and oil sands and other so-called non conventional oil and gas began to highlight the achievements . The author has been specially wrote that : with the tremendous change of working object , the upstream oil industry is experiencing a revolution . Both the exploration idea , development idea , technical means , evaluation method and system and so on will have obvious different with the traditional . Unconventional oil and gas has huge resource potential . The revolution on the upstream oil industry , our country is very important, is a rare historical opportunity . Calls upon the revolution with open arms to greet people upstream oil industry ! Here , the author refers to as the upstream oil industry revolution and ...