缝洞型碳酸盐岩储层地震属性优化方法及应用

英文篇名：Seismic attribute optimization method and its application for fractured-vuggy carbonate reservoir
中文刊名：石油地球物理勘探
英文刊名：Oil Geophysical Prospecting
作者：刘立峰 ; 孙赞东 ; 杨海军 ; 韩剑发 ; 敬兵
英文作者：Liu Li-feng1 ; 2 ; Sun Zan-dong1 ; 2 ; Yang Hai-jun3 ; Han Jian-fa3 and Jin Bin3. 1. Lab for integration of Geology and Geophysics ; China University of Petroleum ; Beijing City ; 102249 ; China2. State Key Laboratory of Petroleum Resource and Prospecting ; China University of Petroleum ; Beijing City ; 102249 ; China3. Research Institute of Exploration and Deveopment ; PetroChina Tarim Oilfield Company ; Kuerle City ; Xinjiang Uygur Autonomous Region ; 841000 ; China
中文关键词：储层预测 ; 地震属性优化 ; 碳酸盐岩 ; 多元逐步判别 ; 核主成分分析 ; 缝洞型储层
英文关键词：reservoir prediction ; seismic attributes optimization ; carbonate ; multiple stepwise discrimination method ; kernel principal component analysis ; fractured-vuggy reservoir
出版日期：2009-12-15
机构：中国石油大学地质地球物理综合研究中心;中国石油大学油气资源与探测国家重点实验室;中国石油塔里木油田分公司勘探开发研究院;
年：2009
期：06
出版单位：石油地球物理勘探

摘要

针对塔里木盆地缝洞型碳酸盐岩储层各向异性特征显著、纵横向非均质性强的特点,本文在分析多元逐步判别法和核主成分分析法的基础上,将两种算法有机结合起来用于地震属性的优化,并以塔中45井区为试验区,建立了该区缝洞型碳酸盐岩储层的预测模型。实际应用中,剔除模型中对判别结果不敏感的属性,使各属性变量互不相关,很好地处理了地震属性之间的非线性问题,确保计算结果的稳定性;对模型进行回判检验,总符合率达到90.57%,表明所建模型的可靠性,可为地震属性优化与缝洞型碳酸盐岩储层预测研究提供一种有效的方法。
Regarding the obvious anisotropy and inhomogeneity characteristics for the fractured-vuggy carbonate in Tarim Basin and based on the multiple stepwise discrimination method and kernel principal component analysis method,the seismic attributes optimization is conducted by integration of the two methods. By using 45 Well Block in middle Tarim Basin as pilot area,a prediction model is developed for fractured-vuggy carbonate reservoir in this area. In applying the model to the real data the attributes which are not sensitive to discrimination results are removed,all attributes are made not correlated with each other,and the non-linear problem among the attributes are dealt with very well,as a result the stability of the computation results is secured. When using real data to test the model,the model's average coincidence rate reaches 90.46%,this means that the model is reliable,and it provides an effective tool for seismic attribute optimization and fractured-vuggy carbonate reservoir studies.

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