Oil & Gas
| Mon 23 Mar 2026
Beijing, March 23 -- State Intellectual Property Office of China has received PetroChina patent application for Demulsifier Suitable for Alkalescent Produced Liquid and Preparation Method of Demulsifier. Qi Shucheng, Zuo Peng, Xu Jian, Yan Yinqiang, Zhai Huaijian, Chen Chao, Que Tingli, Zhang Jizhou, Hao Hongyong, Li Tianyue, Wa..