A hydraulic linkage automatic drilling control system for a live drilling machine

By constructing a multi-parameter collaborative diagnostic mechanism and a dynamic unblocking strategy, the problems of low efficiency and low intelligence level in the diagnosis and handling of stuck drill faults in the existing hydraulic linkage automatic drilling control system of the live drilling machine are solved. This enables rapid and accurate diagnosis of stuck drill faults and efficient unblocking, thereby improving the safety and stability of drilling operations.

CN122304702APending Publication Date: 2026-06-30DEYANG LONGKAI MACHINERY EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DEYANG LONGKAI MACHINERY EQUIPMENT CO LTD
Filing Date
2026-05-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing hydraulic linkage automatic drilling control system for pressurized drilling rigs suffers from problems such as low efficiency, low level of intelligence, rigid unblocking strategies and poor linkage in the diagnosis and handling of stuck drill faults, which leads to risks such as increased stuck drill severity, drill string damage and wellbore abandonment.

Method used

The system comprises a hydraulic power unit, an actuator unit, a parameter acquisition unit, a main control unit, a stuck drill intelligent diagnostic unit, a linkage unblocking control unit, and a human-machine interaction unit. Combined with a PID adaptive adjustment module, a multi-feature fusion prediction model, and a knowledge graph, it achieves multi-parameter collaborative diagnosis, real-time prediction, and dynamic unblocking.

Benefits of technology

It enables rapid and accurate diagnosis and efficient unsticking of stuck drill faults, reduces the rate of false and missed diagnoses, improves the safety and stability of drilling operations, reduces damage to drill strings and wellbore, and is adaptable to different models of pressurized drilling rigs and complex formation conditions.

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Abstract

This invention discloses a hydraulic linkage automatic drilling control system for live drilling rigs, comprising a hydraulic power unit, an actuator unit, a parameter acquisition unit, a main control unit, a stuck drill intelligent diagnosis unit, a linkage unsticking control unit, and a human-machine interaction unit. This invention simplifies the diagnostic process and improves diagnostic efficiency by constructing a multi-parameter collaborative diagnostic mechanism. It achieves intelligent prediction and accurate identification of stuck drill faults using a multi-feature fusion model, reducing false positives and false negatives. Furthermore, it enhances the unsticking effect and reduces damage to the drill string and wellbore by relying on a dynamically adjustable stuck drill strategy and the collaborative linkage of multiple actuators. Simultaneously, it breaks the diagnostic "black box" model, enhancing the interpretability and versatility of diagnosis and treatment, thereby improving the efficiency, safety, and stability of live drilling operations, reducing operational risks and costs, and addressing existing pain points in the industry. It has significant engineering application value and market prospects.
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