For verifying the sound wave propagation characteristic in pipeline and ideal frequency point or frequency band of sound wave propagation in realistic well condition

this paper proposed and designed the experimental scheme. At the same time

this paper studied the feasibility of wireless wellbore control technology based pipeline as channel through using the research of sound wave propagation characteristic in pipeline based measurement data of pilot hole. Meanwhile

this paper studied the relationship between the k（ wave number） and f（ frequency curve） or group velocity frequency curve through the ideal pipeline frequency equation based the 800 meters pipeline. In the pilot hole

conventional 27/8pipeline is used as the sound wave channel for making sound wave propagation characteristic testing. At the different sound wave frequencies

the comb filter characteristic and chromatic dispersion of sound wave propagation in pipeline are analyzed

and the frequency point and frequency domain of sound wave propagation in 800 meters pipeline are obtained. The measured data of sound wave propagation can provide the effective evidence for ideal model amendment.