Research of Optical Fiber Fluid Flow Monitoring System Based on Flow-Induced Pipe Vibration

In the oil field development and production, fluid flow is an extremely important parameter which determines the transmission characteristics of the oil production, real-time monitoring of fluid flow parameter provides a scientific basis for oil and gas optimization exploration and increase of reservoir recovery. A method for interrogating fiber optic sensors using flow-induced pipe vibration is proposed, and fluid flow is measured non-intrusively, the study is conducted on vibration induced by turbulent flow when fluid flow through pipe. The frequency characteristics of the pipe's vibration signals is found,then the fixed relationship between standard deviation of pipe wall's vibration induced by fully developed turbulence and mean flow rate is determined.