利用相干体技术研究碳酸盐岩裂缝特征  

Application of 3-D coherency cube technique in fracture study for carbonate rock

作　　者：万学鹏[1] 欧瑾[1] 于兴河[1] 

机构地区：[1]中国地质大学

出　　处：《断块油气田》2007年第3期43-45,共3页Fault-Block Oil & Gas Field

摘　　要：地震相干体技术是一种利用传统三维地震数据通过检测地震波同相轴的不连续性来识别断层、裂缝和沉积环境的地震解释方法。该方法在结合成像测井、岩心、钻井等资料后,对K油田的碳酸盐岩裂缝分布特征进行了研究和预测。结果表明,不同强度和密度的断层及裂缝在相干体切片上具有明显的区别,同时清楚反映了裂缝的主要分布区带与断层的关系。这一结果可以非常有效地指导油田后期开发调整工作。The 3-D coherency cube is a kind of seismic interpretation technique which uses the traditional 3-D seismic data after surveyed the similarity of seismic signals between adjacent traces to identify fault,fracture and sedimentary environment.This paper studies and forecasts fracture distribution combined with image logging,core,drilling information in K carbonate rock oilfield.The result shows that varying intensity and density fault or facture have obvious difference in coherency slice.It also shows the relationship between mostly fracture distribution strip and the fault very clearly.This result is highly effective in the oilfield development adjustment.

关 键 词：相干体技术 地震解释 裂缝 成像测井解释 研究 

分 类 号：P618.130.2[天文地球—矿床学]