A Method for Improving VSP Resolution by Inverse Q Filtering
详细信息
- 责任者：Yan Hongyong (State Key Laboratory of Petroleum Resource and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Liu Yang
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(6)
- 关键词：垂直地震剖面 ; vertical seismic profiles ; 地震滤波 ; seismic filtering
- 页码：p.873-880
- 图表：20 illus., 1 table, 11 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
Because the difference of seismic wave attenuation between VSP and surface seismic, it is inaccurate to use inverse Q filtering method of processing directly surface seismic data. Based on the inverse Q filtering for surface seismic data, the authors propose in this paper an inverse Q filtering suitable for VSP data. Firstly, the authors apply wave field separation of upgoing wave and downgoing wave on VSP data. Then, the authors use inverse Q filtering compensation according to VSP upgoing and downing wave characteristics. The results of this method on model data and real VSP data show that the inverse Q filtering compensation is reliable.