山地资料叠前保真保幅去噪技术研究及应用  

Research and application of pre-stack fidelity and amplitude denoising technology for mountain data

作　　者：刘晗 Liu Han(Sinopec Petroleum Geophysical Exploration Technology Research Institute Co.,LTD,Nanjing 211103)

机构地区：[1]中石化石油物探技术研究院有限公司,江苏南京211103

出　　处：《石化技术》2024年第2期69-71,共3页Petrochemical Industry Technology

摘　　要：山地资料由于地表条件及地下构造复杂,导致干扰波异常发育,严重影响地震资料信噪比。在分析原始地震资料品质的基础上,针对不同噪音,采用针对性强的压制技术,形成了一套叠前保真保幅组合去噪技术流程。实际资料应用表明,该方案能够有效去除噪音干扰,提高目的层信噪比,且较好的保留资料的弱信号和低频有效信号,保幅性良好,为致密砂岩储层预测奠定了良好基础。Due to the complex surface condition and underground structure of mountain data,the abnormal development of interference wave is caused,which seriously affects the signal-to-noise ratio of seismic data.Based on the analysis of the quality of the original seismic data,a set of pre-stack and amplitude preserving combined denoising technology is formed by using targeted suppression technology for different noises.The application of actual data shows that the scheme can effectively remove noise interference,improve the signal-to-noise ratio of the target layer,and retain the weak signal and the low frequency effective signal of the data well,and the amplitude preservation is good,which lays a good foundation for the prediction of tight sandstone reservoir.

关 键 词：山地资料 保真保幅 叠前去噪 干扰波 信噪比 

分 类 号：P631.4[天文地球—地质矿产勘探] P618.13[天文地球—地质学]