The EPO published a patent application (EP4634488A1) for a method using artificial intelligence—specifically neural network architectures including G06N 3/045 and G06N 3/09—to verify the classification of log files generated during drilling operations. The system analyzes drilling operation data to ensure log files are correctly categorized, combining IPC classifications E21B 44/00 (drilling) with AI/machine learning categories G06F 16/35, G06F 18/2431, and G06F 40/279. Designated states include all EU member states plus CH, LI, NO, TR, MC, RS, SM, ME, AL.

Patent holders and companies in oil and gas extraction or drilling services should review this publication to assess whether similar AI classification methods for drilling operations may be covered by this intellectual property. The publication date of March 25, 2026 marks the start of the 18-month examination period. No immediate compliance action is required, but entities developing competing AI solutions for drilling data classification should conduct freedom-to-operate analyses.