Organization
1. Northeast Sichuan Gas Field,Southwest Oil and Gas Field Company, CNPC, Dazhou, Sichuan 635000, China 2. Langfang Branch, Exploration and Development Research Institute, CNPC, Langfang, Hebei 065007, China)Journal of Southwest PetroleumUniversity, Vol. 33, No. 2, 104 – 108, 2011(1674 – 5086,in Chinese)