INTERNATIONAL PATENT: PETROCHINA COMPANY LIMITED, 中国石油天然气股份有限公司 FILES APPLICATION FOR "NANO VISCOELASTIC SURFACTANT-BASED FRACTURING FLUID AND PREPARATION METHOD THEREFOR"

GENEVA, July 7 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North StreetDongcheng District, Beijing 100007), 中国石油天然气股份有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2024/111351) for "NANO VISCOELASTIC SURFACTANT-BASED FRACTURING FLUID AND PREPARATION METHOD THEREFOR" on Aug 12, 2024. With publication no. WO/2025/138853, the details related to the patent application was published on Jul 03, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellec...