天然气勘探与开发2025，Vol.48Issue(2)：135-145,11.DOI:10.12055/gaskk.issn.1673-3177.2025.02.013
高压高产气井单井场站噪声分析及治理
Noise analysis and control for single-well stations of high-pressure and high-yield gas wells:A case study of MX gas field
摘要
Abstract
In order to reduce the intense noise generated by the throttling at the wellhead of high pressure(usually corresponding to high yield)gas well,diminish its hazards to well site and the surrounding environment,maintain the physical and mental health of personnel and meet the requirements of environmental protection authorities for noise pollution control standards,this paper analyzed the causes and influencing factors of noise,and explored the noise control methods,by combining computational fluid dynamics(CFD)simulation with field test,based on the investigation on MX gas field.The following research results have been obtained.(i)The noise at a single-well station is mainly the jet noise generated by throttling at each stage and the noise generated by high-speed unstable gas flow.(ii)The gas pressure ratio before and after throttling point(hereinafter referred to as pressure ratio)is an important factor influencing noise:when the pressure ratio is less than the critical value(1.89),the noise is relatively low;whereas the pressure ratio is higher than the critical value,the noise is large,especially when the gas flow velocity reaches or exceeds the sound speed(supersonic),intense shock wave noise is generated to intensify the jet noise,resulting in high noise frequency.(iii)The targeted comprehensive noise control methods are proposed:for intense jet noise,the combination of pressure ratio regulation and sound arrester is adopted to keep the pressure ratio below the critical value during throttling;for high-speed unstable gas flow noise,the combination of local throttling stabilization and sound arrester is adopted;and for the plant boundary noise,the physical wall or sound insulation screen can be built to reduce the noise significantly.The research results provide theoretical support and practical guidance for the noise control of single-well stations of high pressure gas wells,and the green production of natural gas.关键词
高压/天然气/节流/压力比/气流速度/噪声/喷射噪声/噪声治理/降噪Key words
High pressure/Natural gas/Throttling/Pressure ratio/Gas flow velocity/Noise/Jet noise/Noise control/Noise reduction引用本文复制引用
计维安,温冬云,高晓根,吴国霈,张栀,潘弘..高压高产气井单井场站噪声分析及治理[J].天然气勘探与开发,2025,48(2):135-145,11.基金项目
中国石油西南油气田公司科技计划项目(编号:20230305-04). （编号:20230305-04）
