Today’s Patent – Remote intelligent active drilling pressure control system and method

The said invention (US12024961B2) was invented by Gao LiHongtao LiYijian ChenDong XiaoJun JiangWenhe XIAYongjie Li, patented by USPTO on 25-01-2022. Currently, it stands assigned to Southwest Petroleum University

The state-of-the-art in this invention lies in its innovative approach to drilling pressure control through a remote intelligent active system. It integrates a ground multi-parameter online monitoring system, MPD (Managed Pressure Drilling) intelligent control platform, and a remote monitoring and control system to achieve real-time data collection, analysis, and precise pressure regulation. The system employs machine learning algorithms for intelligent pressure management, addressing drilling safety challenges by expanding the “drilling safety density window.” Furthermore, it overcomes limitations in current technologies such as back-pressure compensation device failures, unstable flow, and high operational costs. By incorporating advanced components like electrically controlled throttle valves, a drilling hydraulic calculation system, and a multi-slug graded plugging mechanism, the invention ensures stable, efficient, and safe drilling operations under varying conditions.

This advancement enhances traditional MPD systems by introducing a remote, closed-loop control mechanism, enabling intelligent regulation of wellbore pressure across multiple drilling modes. It significantly reduces land usage, operational costs, and response times while addressing issues like excessive pressure fluctuations and equipment failures. The incorporation of an anti-leakage plugging mechanism and multi-slug graded plugging operation further strengthens the system’s ability to handle complex scenarios like well leakage, overflow, and kick control. The seamless integration of real-time monitoring, machine learning-driven decision-making, and remote control capabilities sets a new standard for efficient, reliable, and intelligent pressure management in drilling operations.