Automatic abnormal trend detection of real time drilling data for hazard avoidance

US11481706B2 · kind B2 · utility

Assignee

• Landmark Graphics Corporation · US

Inventors

• Hewei Tang · College Station, US
• Shang Zhang · Tulsa, US
• Feifei Zhang · Beijing, CN
• Suresh Venugopal · Spring, US
• Youli Mao · Houston, US

Key dates

• Filing date: Feb 22, 2018
• Grant date: Oct 25, 2022
• Expiry date: Jul 16, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/45129
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

An abnormal trend detection system for detecting one or more hazards may provide for a safe and effective drilling operation as any of the one or more hazards may be avoided. Several indicators may be defined including a first, second, third and fourth indicator. The indicators are used to identify in a trend analysis abnormal trends. One or more thresholds may be defined. When a trend analysis indicates that a threshold has been reached or exceeded an alarm may be triggered, a drilling operation may be altered or a combination thereof.