[1] PetroChina Southwest Oil & Gasfield Co, Engn Technol Res Inst, Chengdu, Sichuan, Peoples R China
[2] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu, Sichaun, Peoples R China
[3] Southwest Petr Univ, Sch Civil Engn & Geomatics, Chengdu, Sichuan, Peoples R China
[4] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China