顺南地区奥陶系碳酸盐岩储层地震识别与评价

发布时间：2018-06-17 10:44

本文选题：顺南地区 + 碳酸盐岩　；参考：《石油物探》2017年02期

【摘要】：顺南地区碳酸盐岩储层类型多、埋深大,储层规模、空间分布及发育程度复杂,区内钻井少,地震资料信噪比相对较低,储层识别与评价难度大。针对研究难点,首先,基于研究区内钻井、测井、地震和地质资料,进行了岩石物理参数特征分析,建立了符合地下实际情况的地震地质模型,通过正演模拟研究了碳酸盐岩储层的地震波场特征,建立了不同类型储层的地震识别模式;其次,开展不同类型储层的地震敏感参数分析,明确了不同尺度储层的预测方法以及小断层、裂缝的识别方法;最后,综合储层、断层及裂缝、油气等预测结果开展含油气储层发育区评价,优选有利区带及勘探目标。结果证明,采用上述思路对顺南地区碳酸盐岩储层进行识别与评价是有效的。
[Abstract]:There are many types of carbonate reservoirs in Shunnan area with large buried depth, complex reservoir size, spatial distribution and development degree, less drilling in the area, relatively low signal-to-noise ratio of seismic data, and great difficulty in reservoir identification and evaluation. In view of the research difficulties, firstly, based on drilling, logging, seismic and geological data in the study area, the characteristics of rock physical parameters are analyzed, and a seismic geological model is established in accordance with the actual underground conditions. Through forward modeling, the seismic wave field characteristics of carbonate reservoir are studied, and the seismic identification patterns of different types of reservoirs are established. Secondly, the seismic sensitive parameter analysis of different types of reservoirs is carried out. The prediction methods of reservoirs with different scales and the identification methods of small faults and fractures are defined. Finally, the comprehensive prediction results of reservoirs, faults and fractures, oil and gas are used to evaluate the development areas of oil-bearing reservoirs and to select favorable zones and exploration targets. The results show that it is effective to identify and evaluate carbonate reservoirs in Shunnan area.
【作者单位】：中国石油化工股份有限公司西北油田分公司勘探开发研究院;中国石油化工股份有限公司西北油田分公司塔河油田采油二厂;
【基金】：国家科技重大专项(2011ZX05014-001)资助~~
【分类号】：P631.4;P618.13

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