1. SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms , Wuxi, Jiangsu , China
2. Wuxi Research Institute of Petroleum Geology, Research Institute of Petroleum Exploration & Production, SINOPEC , Wuxi, Jiangsu , China
3. The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University , Wuxi, Jiangsu , China