International Patent: DOWNHOLE IMPACT TOOL WITH AUTOMATIC FREQUENCY TUNING, AND IMPACT FREQUENCY PREDICTION AND CONTROL METHOD

GENEVA, Nov. 6 -- CHINA NATIONAL PETROLEUM CORPORATION filed a patent application (CN2025/144502) for “DOWNHOLE IMPACT TOOL WITH AUTOMATIC FREQUENCY TUNING, AND IMPACT FREQUENCY PREDICTION AND CONTROL METHOD”. With publication no. WO/2026/227836, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: E21B 4/16

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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