西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (5): 10-13.DOI: 10.3863/j.issn.1000-2634.2004.05.003

• 地质勘探 • 上一篇    下一篇

共聚焦点成像技术

王锡文1 张果2 杨春梅1
  

  1. 1.中原油田分公司物探研究院,河南濮阳457001; 2.中国地质大学研究生院,湖北武汉430074
  • 收稿日期:2003-11-03 修回日期:1900-01-01 出版日期:2004-10-20 发布日期:2004-10-20
  • 通讯作者: 王锡文

COMMON FOCUS POINT IMAGING TECHNIQUES

WANG Xi-wen ZHANG Guo YANG Chun-mei   

  1. Geophysical Research Institute of Zhongyuan Oilfield Co., SINOPEC, Puyang Henan 457001, China
  • Received:2003-11-03 Revised:1900-01-01 Online:2004-10-20 Published:2004-10-20
  • Contact: WANG Xi-wen

摘要: 提出一种全新的地震偏移处理方法—共聚焦点(CFP)成像技术。CFP成像技术借助于两个连续且相互独立的聚焦步骤,将叠前偏移与速度分析独立开来,并且用算子更新代替传统上对速度场的直接更新,最后从经过正确更新的聚焦算子反演出地下速度场。通过模型试算了CFP成像技术,结果表明了方法的有效性。
       

关键词: 共聚焦点, 聚焦算子, 成像, 双聚焦偏移

Abstract: A brand new kind of approach is presented for seismic migration processing-Common Focus Point (CFP) imaging techniques in this paper. CFP imaging techniques will separate prestack migration from velocity analysis recurring to two consecutive and independent focusing steps, and substitute operator up-
dating for the direct updating of velocity filed in a traditional way, in the end calculate subsurface velocity filed using correctly updated focusing operator. The effectiveness of CFP imaging techniques was verified on a model.

Key words: common focus point, focusing operator, imaging, bifocal migration

中图分类号: