GENEVA, July 6 -- PETROCHINA COMPANY LIMITED filed a patent application (CN2025/129979) for “SELF-PERMEATING WATER-BASED PROFILE CONTROL NANOMATERIAL AND PREPARATION METHOD THEREFOR, AND PLUGGING METHOD FOR RESERVOIR FRACTURE”. With publication no. WO/2026/138117, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: C09K 8/508
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
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