Principles and Application of a Seismic Trend Anomaly Diagnostic Technique: A Case Study on Carbonate Fractured-Cavity Reservoirs in Yingmai 2 Area, Tarim Basin
详细信息
- 责任者：Yao Qingzhou (Northwest Branch ; Research Institute of Petroleum Exploration & Development ; PetroChina ; Lanzhou 730020 ; China) ; Meng Xiangxia
- 刊名：Acta Petrolei Sinica
- 出版年：2013
- 卷期：34(1)
- 关键词：碳酸盐岩储集层 ; carbonate reservoirs ; 反射波法 ; reflection methods ; 塔里木盆地 ; Tarim Basin
- 页码：p.101-106
- 图表：illus., 24 refs.
- 分类号：1600
- issnNo：ISSN0253-2697
- isbnNo：CN11-2128/TE
摘要
As for carbonate fractured-cavity reservoirs,especially for those characterized by chaotic weak reflection,it is very difficult to make a reservoir prediction.Based on analyzing formation mechanism of seismic reflection,a new method to recognize carbonate fractured-cavity reservoirs by using seismic trend anomaly was proposed.This method uses a technique of trend surface analysis to approximately obtain the interface reflection wave,effectively decomposes seismic reflection of fractured-cavity reservoirs according to principles of wave superposition,and finally predicts fractured-cavity carbonate reservoirs efficiently.The technique can not only recognize reservoirs represented by "beadlike" seismic reflection but also those by "chaotic" seismic reflection with weak amplitude.The method has produced good effects in practical application,such as providing a significant reference value for the geometric arrangement of wells and complementing the prediction of fractured-cavity reservoirs in the carbonate area of Tarim Basin.
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