地震多属性断裂识别技术在中拐凸起石炭系中的应用  

Fault and fracture identification in Carboniferous,Zhongguai Uplift,Junggar Basin with seismic multiattributes

作　　者：仲伟军[1] 姚卫江[1] 贾春明[1] 党玉芳[1] 蔡义峰[1] 庞志超 

机构地区：[1]中国石油新疆油田分公司勘探开发研究院地球物理研究所,新疆乌鲁木齐830013

出　　处：《石油地球物理勘探》2017年第A02期135-139,共5页Oil Geophysical Prospecting

摘　　要：中拐凸起石炭系被断裂分割为不同的断块,所形成的油藏具有不同的油水界面,均为受断裂控制的带底水的块状油藏,断裂识别及裂缝预测难度增加了该区对油藏主控因素的认识。综合利用了相干体/方差体属性、构造曲率体以及多窗口倾角扫描体、构造导向滤波、相干能量梯度体、蚂蚁体追踪、边缘检测等技术手段,形成了以倾角导向等技术为代表的断裂描述的配套技术流程,识别了不同级别、不同期次发育的断裂,预测了断层/裂缝发育区,并克服了单一方法在断裂识别及裂缝预测中的缺陷,拓展了中拐凸起石炭系油气勘探领域。Carboniferous strata in Zhongguai Uplift,Junggar Basin were divided into different fault reservoirs,which have different oil-water interfaces.These fault reservoirs controlled by faults and fractures with bottom water are difficult to be identified.To solve the problem,we carry out fault and fracture identification with interpretation tools provided by GeoEast such as coherence and variance cube,structural curvature cube,multi-window dip scanning,structure-guided filtering,coherence-energy gradient calculation,ant cube tracking,and edge detection.Faults and fractures with different grades and stages are identified,and fault and fracture areas for the future development are predicted.The fault and fracture identification approach with multi-attributes has obtained more success than a single attribute,which lays a good foundation for the hydrocarbon exploration in Carboniferous in Zhongguai Uplift,Junggar Basin.

关 键 词：地震多属性 断裂识别技术 中拐凸起 石炭系 

分 类 号：P631[天文地球—地质矿产勘探]