Obtaining method and device of oil well flowing speed

The invention provides an obtaining method and device of an oil well flowing speed. The obtaining method comprises the steps that the pressure differential and the density of fluid in a well section of the oil well are obtained, wherein the pressure differential is the difference value of the fluid pressure at the two ends of the well section; and according to the pressure differential and the density of the fluid, the flowing speed of the oil well is determined. According to the technical method, in the process of production, the flowing speed of the oil well cannot be measured accurately due to a densitometer problem, the flowing speed of the oil well can be accurately calculated through the fluid pressure differential and the fluid density value of the oil well section, and therefore, reliability of oil well assessment is improved. 本发明提供种油井流速的获取方法与装置。该方法包括：获取所述油井的井段中流体的压力差和流体的密度；其中，所述压力差为所述井段两端的流体压力的差值；根据所述流体的压力差和所述流体的密度，确定所述油井的流速。本发明的技术方法，在生产过程中由于密度计问题无法准确测量油井的流速时，通过油井井段的流体压力差和流体密度值准确计算出油井的流速，进而提高了油井评估的可靠