VSP平均速度的应用

doi:10.3863/j.issn.1000-2634.1999.02.13

西南石油大学学报(自然科学版) ›› 1999, Vol. 21 ›› Issue (2): 46-48.DOI: 10.3863/j.issn.1000-2634.1999.02.13

VSP平均速度的应用

曹统仁¹

1.西南石油学院勘探系,四川南充 637001

收稿日期:1998-10-26 修回日期:1900-01-01 出版日期:1999-04-20 发布日期:1999-04-20

APPLICATION OF VSP AVERAGE VELOCITY

Cao Tong-ren¹

Southwest Petroleum Inst

Received:1998-10-26 Revised:1900-01-01 Online:1999-04-20 Published:1999-04-20

摘要/Abstract

摘要：

从VSP测井与常规地震激发、接收条件的对比出发,对VSP平均速度和常规地震平均速度的精度问题进行了探讨;分析了常规地震平均速度的精度低于VSP平均速度的精度的原因;强调了用VSP平均速度对常规地震平均速度进行约束和校正的重要性,以便为编制高精度油气勘探构造图提供可靠的速度资料。

关键词: 垂直地震剖面, 上行波, 下行波, 初至拾取

Abstract:

According to the comparison of the VSP-log shooting and receiving conditions with the conventional seismic exploration, this paper discussed the accuracy of the VSP-log and the conventional seismic average velocity and the reasons which conventional seismic average velocity accuracy is lower than that of the VSP-log average velocity. The author emphasizes that it is important to restrain and correct the conventional seismic average velocity using the VSP-log average so that it provides good velocity data for the high accurate structure maps compilation used in oil-gas exploration.

Key words: VSP-log, average velocity, application

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