Implementation method for converting time sequence electrical parameter data into period electrical indicator diagram of rod-pumped well

The invention discloses a method for realizing a time sequence electrical parameter data-to-period electrical indicator diagram of a rod pumped well, which comprises the following steps of: filtering electrical parameter data, solving a period through processing, smoothing the electrical parameter data by using low-pass filtering, shearing the smoothed electrical parameter data according to the period, and calculating a bottom dead center through superposition processing on period data, so as to obtain a time sequence electrical parameter data-to-period electrical indicator diagram of the rod pumped well. And the stroke frequency is determined, cubic spline interpolation is combined with a pumping unit suspension point movement rule to convert the time sequence electrical parameters of the pumping unit well into a periodic electrical indicator diagram, and finally related characteristic parameters are obtained. By analyzing the electrical parameters of the rod-pumped well, synchronous acquisition ...