1. College of Petroleum & Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
2. Oil & Gas Pipeline Technology Research Institute, Chengdu 610037, China
3. Chengdu Branch of Sinopec Petroleum Engineering Design Co.,Ltd., Chengdu 610000, China
4. Southwest Pipeline Co., Ltd of China Oil & Gas Pipeline Network Corporation, Chengdu 610037, China