Structure Research Of A Helical Blade Flowing-stabilizer

This is a self-operated machinery without additional downhole and uphole regulation.We can control the pressure and flow which would make the separation to get relativelystable flow, pressure, velocity and other parameters in the separation environment. Thestructure is simple, reliable and self-adaptability.According to the theory of fluid-structure interaction and Bernoulli’s principle, thispaper puts forward to changing the flow area to realize pressure’s stabilization. Weestablished the analysis model with the three-dimensional modeling software UG and haddone some structural optimizations and improvements according to the fluid-structureinteraction analysis of the current stabilizer in ADINA. Through the analysis result of theinitial model’s pressure and velocity curve, the device has the desired effect,but its steadyflow effect is not ideal enough. Therefore, through the proper expansion method from thebaffle flow area to improve current stabilizer, we simulated analysis again. From theanalysis results of optimization model, the inlet and outlet pressure are ideal, it satisfies therequirement of the basic design of current stabilizer. The results show that the currentstabilizer in downhole complex situation, it can control the injection pump used in60~80m3/d, pressure, and the outlet pressure can be control in1~3MPa after pressure loss.This paper uses a combination of theoretical analysis and experimental researchmethods. The results show that to optimize the design and performance of the currentstabilizer model with fluid-structure interaction numerical simulation technology is stable,viable and efficient; In the meantime, the method of numerical simulation of fluid-structureinteraction can also be used in the study of petroleum, pipe network, drilling and otherrelated equipments.