Dong Xiaoxu

School of Mathematics and Computer Engineering, Xihua University, Chengdu, China

Li Shunchu

School of Mathematics and Computer Engineering, Xihua University, Chengdu, China

Gui Dongdong

Beijing Dongrunke Petroleum Technology Co., Ltd., Beijing, China

Pu Jun

School of Mathematics and Computer Engineering, Xihua University, Chengdu, China

Li Huichun

Geological Research Department of the Fourth Oil Production Plant of DaGang Oilfield Company, Tianjin, China