Organization
1. School of Petroleum Engi-neering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 2. Sinopec Corp, SINOPEC, Chaoyang, Beijing 100728, China)Journal of Southwest Petroleum University, Vol. 33, No. 2, 165 – 170, 2011(1674 – 5086,in Chinese