Device for detecting multiphase flow law and flow pattern characteristics in oil and gas shaft and pipeline by using micro-vibration

The invention discloses a device for detecting multiphase flow law and flow pattern characteristics in an oil gas shaft and a pipeline by using micro-vibration, and relates to the technical field of oil gas and natural gas hydrate drilling and production. The device comprises an oil way pipeline, two rack plates are fixedly installed on the outer wall of the oil way pipeline, and a fixing lantern ring is arranged on the outer wall of the oil way pipeline; an arc-shaped sliding block slides along the surface of a circular sliding rail, the arc-shaped sliding block enables a micron vibration monitor to rotate with the axis of a fixed lantern ring as the circle center through a hollow sleeve, the fixed lantern ring horizontally moves, the hollow sleeve and the micron vibration monitor horizontally move through the fixed lantern ring, and the micron vibration monitor rotates and horizontally moves. According to the micro-vibration monitoring system for the oil-way pipeline, the micro-vibration of the outer wall o