A drilling working condition and stuck drill pipe working condition simulation bench and application thereof

By designing a drilling and stuck pipe simulation bench, full-condition simulation and automatic identification were achieved, solving the problems of existing technologies being unable to simulate full conditions and lacking automatic identification, thus reducing drilling risks and improving drilling efficiency.

CN117404081BActive Publication Date: 2026-07-03PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2022-07-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing drilling simulation benches cannot simulate all working conditions, especially conditions such as receiving drill bits, running in, pulling out, reaming, circulation, overflow, drilling, receiving drill collars, and stuck drill bits, and they lack automatic identification functions for drilling conditions.

Method used

A drilling and stuck-pipe simulation bench was designed to simulate all working conditions using parameters such as torque, drilling pressure, and rotational speed. It is equipped with sensors and an industrial control computer for data acquisition and analysis, and a working condition identification model is constructed to automatically identify complex downhole working conditions.

Benefits of technology

It enables full-condition simulation and automatic identification, reduces drilling risks, improves drilling efficiency, and ensures safe and efficient drilling in complex deep oil fields.

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Abstract

This invention belongs to the technical field of oil drilling engineering equipment, and discloses a simulation bench for drilling and stuck pipe conditions and its application. The simulation bench includes a drill string assembly, drilling fluid pipelines, and an industrial control computer. The drill string assembly is located in the riser, and a casing is installed around the riser. The drilling fluid pipeline includes a drilling fluid input pipeline and a drilling fluid return pipeline. A hydraulic lifting device is installed at the upper end of the drill string assembly, and a rotary drive device is installed on the drill string assembly below the hydraulic lifting device. A drill pipe torque measuring device and a riser pressure sensor are installed on the upper outer side of the drill string assembly at the wellhead. A wellhead casing pressure sensor is installed on one side of the upper end of the casing, a bottom casing pressure sensor is installed on one side of the bottom end, and a drill pipe stuck pipe pusher is installed on one side of the middle section. All the above devices are connected to the industrial control computer through a command transmission line. This invention can simulate all drilling control conditions and stuck pipe risk conditions, and can also verify and calibrate the automatic identification algorithm for drilling conditions, providing support for wellhead testing and actual drilling operations.
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