A drill pipe vibration monitoring system and method that can be quickly disassembled

The drill pipe vibration monitoring system, which utilizes laser displacement detection and downhole multi-level signal preprocessing, solves the problems of high cost, complex structure, and inability to be immediately installed and used in existing devices. It enables rapid disassembly and assembly of drill pipe vibration and stable monitoring, thereby improving the safety and intelligence of drilling operations.

CN122409167APending Publication Date: 2026-07-17SOUTHWEST PETROLEUM UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Filing Date
2026-05-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing drill pipe vibration detection devices are costly, complex in structure, and bulky, making them unusable immediately. They also cannot operate stably in the high-temperature and high-pressure environment downhole, cannot synchronously monitor static displacement signals, lack graded relay in signal transmission, and have poor data stability due to a lack of preprocessing and prediction functions.

Method used

The drill pipe vibration monitoring system using laser displacement detection includes a downhole monitoring device and a data processing terminal. It uses a combination of laser emitting module and photodiode array to synchronously identify dynamic and static displacement and various forms of vibration, relays the data step by step, and performs multi-level downhole signal preprocessing to achieve stable signal uploading. The data is then stored, predicted, and used for early warning at the terminal.

Benefits of technology

It enables rapid assembly and disassembly of drill pipe vibration, has a compact and modular structure, supports key monitoring, has stable signal transmission, adapts to harsh downhole environments, and has real-time monitoring, storage, prediction and early warning functions, thus improving the safety and intelligence level of drilling operations.

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Abstract

The application discloses a drill pipe vibration monitoring system and method which can be quickly disassembled, and the drill pipe vibration monitoring system comprises a downhole monitoring device and a data processing terminal; the downhole monitoring device comprises drill pipe vibration monitoring modules which are arranged on a drill pipe in a multi-stage detachable mode, a first-stage drill pipe vibration monitoring module comprises a laser emission module, a laser receiving module, a signal step-by-step relay transmission and downhole data preprocessing module; the signal step-by-step relay transmission and downhole data preprocessing module comprises a signal storage and preprocessing module and a signal transmitter which are connected, the signal storage and preprocessing module is used for preprocessing a current-stage signal, receiving a next-stage signal, merging the preprocessed current-stage signal and the received next-stage signal, and amplifying and shaping the merged signal; the data processing terminal is used for receiving a signal monitored by the downhole monitoring device, preprocessing and time sequence prediction of the signal, and generating an abnormal early warning signal according to a preset threshold value. The application can more conveniently and accurately monitor drill pipe vibration.
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