Autonomous Wellbore Tool with Sonar Positioning

The patent removes the setting tool and wireline conveyance system from the tool string, extracting these functions entirely. The plug is deployed and set directly without requiring a setting tool, and the perforating guns are initiated through fluid-borne signals rather than wireline connections. This extraction eliminates multiple connection points and reduces overall system complexity while maintaining the essential functions of plug deployment and gun initiation.

The system enables autonomous operation where the plug and perforating guns perform their functions without external control equipment. The plug sets itself upon deployment, and the perforating guns are initiated through acoustic or pressure signals that propagate through the wellbore fluid, eliminating the need for wireline-connected control systems and reducing reliance on complex external equipment.

The patent replaces electronic positioning and control systems with mechanical and acoustic alternatives. Instead of using electronic sensors and processors for positioning, the system uses mechanical depth markers and acoustic signaling for communication. The initiation of perforating guns is achieved through fluid-borne pressure waves rather than electrical circuits, eliminating electronic components while maintaining autonomous operation capability.

The system employs simple, disposable components such as acoustic initiators and mechanical depth markers that are consumed during operation rather than complex electronic systems requiring maintenance. These simple components reduce the risk of failure from complex electronics while enabling autonomous function through straightforward mechanical and acoustic mechanisms.