Automatic flaw detection device for drill rod

Abstract

The invention relates to an automatic drill rod flaw detection device which comprises a rack, a lifting plate arranged on the rack and a lifting driver, a probe assembly and a decontamination assembly are arranged on the lifting plate, the probe assembly comprises a probe mounting ring and a scanning probe, and the probe mounting ring comprises a mounting ring left part and a mounting ring right part; the decontamination assembly comprises a connecting frame and a decontamination rope arranged on the connecting frame. According to the automatic flaw detection device for the drill rod, scanning of the drill rod is achieved through the arrangement of the probe assembly, the decontamination function of the drill rod is achieved through the arrangement of the decontamination assembly, detection personnel do not need to manually decontaminate the drill rod, the detection risk is greatly reduced, and meanwhile the detection efficiency and accuracy are improved.

Description

technical field [0001] The invention relates to a flaw detection device, in particular to an automatic flaw detection device for drill pipes. Background technique [0002] With the vigorous development of national science and technology and economy, the amount of resource mining is also gradually increasing, which in turn promotes the continuous development of industrial flaw detection. In the oil exploration industry, common defects on drill pipes include internal and external surface cracks, internal and external surface corrosion pits, external surface card grooves, punctures, etc. In order to avoid production accidents, inspectors need to use ultrasonic shear wave detection technology to detect cracks and corrosion pits on it. [0003] At present, during on-site drill pipe inspection, flaw detectors need to carry a portable ultrasonic flaw detector on their backs, and hold a small probe for contact flaw detection when the drill pipe is raised. Since the number of drill...

AI Technical Summary

Problems solved by technology

This requires a lot of physical strength and energy for the inspectors. Although 2 to 3 inspectors are usually deployed for a single trip, the work intensity and safety environment on the rig floor can easily accelerate the physical fatigue of the inspectors, and the labor intensity of a single inspector is relatively high; Secondly, during the drilling process, the inspectors have to stand at the wellhead for manual flaw detection, and the oil film on the drill pipe needs to be manually removed before the flaw detection, which has a high risk of operation; in addition, the inspectors are prone to judgment of the detection results during long-term continuous operation. Wrong phenomenon, thereby reducing the accuracy of detection

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