Seismic Response Characteristic Analysis of Oil-rich Reservoirs

Geoscience ›› 2012, Vol. 26 ›› Issue (6): 1250-1257.

• Energy Exploration • Previous Articles Next Articles

Seismic Response Characteristic Analysis of Oil-rich Reservoirs

YU Zhen ¹, WANG Yan chun¹, HE Jing ², ZHANG Feng qi¹，WANG Da quan ³

1 School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China；
2 Land Ocean Energy Services Co,Ltd, Beijing100084, China；
3 Yunnan Geophysical Company, Southwest Petroleum Bureau Group, SINOPEC, Kunming, Yunnan650233，China

Received:2012-06-15 Revised:2012-08-23 Online:2012-10-24 Published:2012-10-31

Abstract

Abstract:

The seismic response characteristics of oil layer and water layer are close, and conventional fluid prediction methods cannot get satisfactory result for oil layer prediction.Through integrated study of well logging, geology and geophysics, and statistical analysis of theoretical model and field data, the seismic response characteristic of oil-rich reservoir was analyzed from the point of the relative variations of amplitude and sweetness, and its regularity was summarized quantitatively.The results show that when the thickness of oil layer is small, the relative variations of amplitude and sweetness are small too, and they have no obvious relationship with the thickness of oil layer.With the thickness of oil layer increasing, the relative variation of amplitude increases linearly, and that of sweetness increases exponentially with higher rate.Sweetness can amplify the difference between oil layer and water layer

Key words: oil-rich reservoir, seismic response characteristic, amplitude, sweetness, relative variation

TU Zhen, WANG Pan-Chun, HE Jing, ZHANG Feng-Qi, WANG Da-Quan. Seismic Response Characteristic Analysis of Oil-rich Reservoirs[J]. Geoscience, 2012, 26(6): 1250-1257.

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Seismic Response Characteristic Analysis of Oil-rich Reservoirs

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