Fine seismic imaging technology for fractured-vuggy carbonate reservoirs in the Tahe oilfield

Ma Xuejun; Li Zongjie

doi:10.11743/ogg20080609

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Fine seismic imaging technology for fractured-vuggy carbonate reservoirs in the Tahe oilfield
Vol. 29, Issue 6, Pages: 764-768(2008)
Online First：24 December 2008，

Published：2008
DOI： 10.11743/ogg20080609
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DOI：

Ma Xuejun, Li Zongjie. Fine seismic imaging technology for fractured-vuggy carbonate reservoirs in the Tahe oilfield[J]. 2008, 29(6): 764-768. DOI： 10.11743/ogg20080609.

摘要

针对塔河油田碳酸盐岩缝洞型油藏的特点

探索出适应塔河油田碳酸盐岩缝洞型储层的精细成像技术方法。主要包括统计去噪、地表一致性处理、子波一致性处理、速度分析、三维DMO叠加、串联偏移等成像技术。这些技术的精细组合使用

使奥陶系顶风化面及内幕岩溶特征准确成像

提高了钻井的油气产率

为塔河油田的稳步快速发展提供了技术保障。

Abstract

A fine seismic imaging technology tailored to fit the characteristics of the fractured-vuggy carbonate reservoirs in the Tahe oilfield is developed.It consists of a series of techniques

including noise elimination

sur-face consistency processing

wavelet consistency processing

velocity analysis

3D DMO stacking

cascade migra-tion to image

and etc.It has been proven that a delicate combination of these techniques can yield fine images of the top erosional surface and inner karst of the Ordovician

thus improving oil well yield and providing technical support for a steady and fast development of the Tahe oilfield.