TY - DATA AU - Xutao,Huang ED - Research Institute of Petroleum Exploration & Development ED - World Petroleum Congress (16th. : 2000 jun. 11-15 : Calgary, Alberta, Canada) ED - Research Institute of Petroleum Exploration & Development TI - A CLEAN AND ECONOMIC DOWNHOLE ARTIFICIAL SEISMIC OIL RECOVERY TECHNOLOGY U1 - CD W938 1 0013960 ER -