为有效降低次声，保护油气田增压站周围声环境，通过对压缩机组次声的产生及传播规律深入研究，并依据频谱分析，对压缩机组实施有针对性的噪声治理措施。通过现场调查、压缩机组噪声测量、数据及频谱分析、声学理论论证，确定了所测压缩机组辐射的噪声中确实含有声压级较高的次声。依据测得的噪声频谱图，设计可听声及次声治理方案。通过对比分析治理前后的噪声频谱图可知，经过治理后可听声及次声对周围声环境的影响已有明显改善。

 In order to reduce the infrasound effectively and protect the acoustic environment around oil and gas compressor stations， intensively studied are generation and propagation rule of the infrasound from compressor unit and taken are some nichetargeting noise control measures according to spectral analysis results. Through field investigation， compressor unit noise measurement， data and spectral analysis and acoustics theory demonstration， it’s proved that there is high sound pressure level infrasound in compressor unit noise. Prepared are control measures of audible sound and infrasound according to the noise spectrum. Comparative analysis is conducted on the noise spectrums before and after noise control measures are taken and analysis results show that effects of audible sound and infrasound on surrounding acoustic environment have been obviously reduced.