针对南堡2号潜山顶部奥陶系非均质碳酸盐岩储层,基于宽方位角采集的地震资料,结合已有钻探成果,开展了碳酸盐岩缝洞型储层的地震综合预测研究.在对地震资料进行相对保幅处理的基础上,通过构造精细解释落实潜山顶面层位和断裂格局；应用P波方位各向异性分析技术进行叠前裂缝预测,利用曲率属性技术进行叠后裂缝预测,再辅之以叠后衰减梯度属性检测溶蚀孔洞分布.通过叠前、叠后预测结果的对比分析,以及FMI成像测井解释结果和钻井实际生产效果的验证,证明了研究思路的正确性和所用预测方法的有效性.综合预测研究成果为圈定南堡2号潜山奥陶系储层裂缝发育的有利目标区提供了依据.%Based on wide-azimuth seismic data and drilling data,the seismic comprehensive prediction of Ordovician heterogeneous carbonate fracture-carst reservoir was conducted in the top of Nanpu2 buried-hill. On the basis of seismic data amplitude-preservation processing, the surface layer and fracture pattern of Nanpu2 buried-hill is identified by fine structure interpretation. Meanwhile, the P-wave azimuth anisotropy analysis technique is used to carry out pre-stack fracture prediction and curvature attribute is adopted to carry out post-stack fracture predictioa Moreover, post-stack attenuation gradient is utilized to detect the distribution of caves. By comparing the pre-stack and post-stack prediction results,combined with FM1 imaging logging interpretation result and drilling data, we proved the correctness of our research clue and the effectiveness of the prediction methods. The comprehensive prediction results provide a basis for identifying the potential target area of Ordovician carbonate reservoir in the Nanpu2 buried-hill.
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