• 责任者：Wei Jidong (Geophysical Corporation ; Shengli Oil Administration Bureau ; Dongying 262400 ; China)
• 刊名：Geophysical and Geochemical Exploration
• 出版年：2011
• 卷期：35(2)
• 关键词：去噪 ; denoising ; 数据采集 ; data acquisition ; 地震勘探 ; seismic exploration
• 页码：p.238-242,247
• 图表：12 illus., 2 tables, 1 ref.
• 分类号：1600
• issnNo：ISSN1000-8918
• isbnNo：CN11-1906/P

The geophone array in field data acquisition can suppress both the regular interference noise and the scattering interference noise. The regular interference noise is mainly suppressed by directional effect, while the scattering interference noise is mainly suppressed by statistical effect. Relevant theories hold that, when other factors remain fixed, the more geophones are used, the better results are obtained. It seems therefore that more geophones should be used to improve the seismic data quality; nevertheless, the authors’ studies have proved that, if the number of geophones in a liner array whose sensitivities are suitably weighted is more than "+3" (where =effective-array-length /minimum-wavelength of regular interference noise), no obvious advantage can be seen by using more geophones. On such a basis, by calculating rose diagrams, the suitable number of geophones in an area-geophone-array or smearing can be pointed out, which is more economical. On the other hand, for the purpose of attenuating environmental noise, the more geophones are used in an array, the better result can be obtained under the condition that the effective array length is fixed.