Offshore platform vertical pipe detection device

Abstract

The invention discloses an offshore platform vertical pipe detection device which comprises ultrasonic guided wave detection equipment, low-energy ray detection equipment and vertical pipe detection fixing equipment. The ultrasonic guided wave detection equipment comprises an array sensor and a signal conditioning module which are connected with each other, and the array sensor is arranged along the outer circumference of the vertical pipe to be detected; the signal conditioning module is connected with a data acquisition and analysis module of a computer system; the vertical pipe detection fixing equipment comprises a steel fixing framework, and a magnetic adsorption part, a radiation source fixing part and a detector fixing part are arranged on the steel fixing framework; the low-energyray detection equipment comprises a ray source and a detector, wherein the detector is connected with the data acquisition and analysis module of the computer system. According to the device, the offshore platform vertical pipe can be accurately and quickly detected, the vertical pipe defect position and defect form can be found, and the device is suitable for offshore platform vertical pipe corrosion detection and corrosion condition evaluation.

Description

technical field [0001] The invention relates to the field of offshore platform riser detection, and more specifically relates to an offshore platform riser detection device. Background technique [0002] The riser of the offshore platform has special features. The external corrosion area of ​​the riser starts from the atmospheric area and passes through the splash area, tidal range area, full immersion area, and sea mud area. Hardest hit areas where corrosion occurs. [0003] For a long time, domestic offshore platforms have been in a fragmented state for in-service inspection and evaluation and emergency maintenance of risers, and an overall effective hidden danger detection and defect evaluation method has not yet been formed. China National Offshore Oil Corporation has carried out a variety of detection technologies for riser corrosion, including low-frequency guided wave, MsS, ultrasonic thickness measurement and water penetration detection, etc. The effect is not ideal...

AI Technical Summary

Problems solved by technology

[0003] For a long time, domestic offshore platforms have been in a fragmented state for in-service detection and evaluation of risers and emergency maintenance, and have not yet formed an overall effective hidden danger detection and defect assessment means

China National Offshore Oil Corporation has carried out a variety of detection technologies for riser corrosion, including low-frequency guided wave, MsS, ultrasonic thickness measurement and water penetration detection, etc., the effect is not ideal, especially for the inner pipe of the double-layer riser, the inside of the riser clamp and other parts There are detection blind spots, which become a hidden danger to the safe operation of submarine pipelines

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