Special Waveform Analysis in Detecting Dynamic Fluid Level of Oil Well

A slice of special waveforms often appear in the echo signal of oil well dynamic fluid level detected by acoustic wave, but there is no relevant research on that at present. In order to deeply study these special waveforms, this paper studies and analyzes them by combining the theory of acoustic wave detection with several special waveforms collected in the process of acoustic wave detection of dynamic fluid level. Through the field verification, the relationship between the several special waveforms and the actual situation is determined, which provides another way to judge the down hole and the field situation, and has certain practical value in the future.