Harmonics On-Site Suppression on Vibroseis Slip-Sweep Data
详细信息
- 责任者：Lan Yijun (Tuha Division ; BGP Inc. ; PetroChina ; Hami 839009 ; China) ; Zhang Shuhui
- 刊名：Oil Geophysical Prospecting
- 出版年：2013
- 卷期：48(4)
- 关键词：地震勘探 ; seismic exploration ; 数据处理 ; data processing
- 页码：p.507-512
- 图表：7 illus., 1 table, 6 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
As a main tool of high-density wide azimuth 3D seismic acquisition,vibroseis slip-sweep can effectively improve the productivity and reduce operation cost in the field.However,the inherent harmonics of multi-vibrations inevitably interfere with adjacent shot records due to application of slip-sweep.Therefore,the effectiveness of harmonics suppression has become the premise to ensure the data quality of slip-sweep recording.The paper approaches the generation mechanism of harmonics and the energy classification of harmonics by analyzing the basic principle of vibroseis excitation,propose target-oriented design with some parameters for slip-sweep,and focuses on the suppression of strong second and third harmonics.Both field tests and field data recordings show that this harmonics suppression method introduced obtains good results.
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