摘要
塔中西部地表沙漠厚度大,碳酸盐岩目的层埋藏深,地震反射信号弱,资料信噪比和分辨率较低,控制油气的走滑及其相关断裂难以有效识别,制约了本区的滚动评价研究。利用GeoEast系统开发的构造导向滤波技术对地震资料进行解释性处理之后,资料信噪比明显提高,断裂及岩性边界更为清晰。在此基础上利用相干体、曲率体等体属性综合分析与解译,提高了断裂解释精度。同时,应用该系统开发的碳烃检测模块开展了油气检测工作,预测了外围区油气富集程度,加快了向外围区滚动评价的进度。
The thick desert and deeply buried carbonate reservoirs in the Tazhong Area cause weak-reflection, low signal-to-noise ratio and low-resolution3 D seismic data, which leads many difficuties in fault and fracture recognitions for hydrocarbon progressive evaluation. We first conduct seismic interpretable processing with structure-guided filtering provided by GeoEast, which improves obviously data signal-to-noise ratio. And much clearer lithologic boundaries are delineated. Then we improve the fracture interpretation accuracy with comprehensive attribute analysis such as coherence cube, curvature volume, and other attributes.Meanwhile we carry out fluid monitoring, and hydrocarbon detection in adjacent areas with a hydrocarbon detection module developed under GeoEast.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2017年第A01期195-198,共4页
Oil Geophysical Prospecting
关键词
塔中西部
构造导向滤波
相干曲率碳烃检测
Western Tazhong
structure-guided filtering
coherence and curvature
hydrocarbon detection
