井震结合复杂断裂分级识别技术及应用——以魏岗油田①号断裂带为例  

Classification and identification technology ofcomplex faults and its application with well-seismic integrated method—By taking No.1 fault zone of Weigang Oilfield as an example

作　　者：朱煜华 张晓亮[1] 王树芳 庞萌 马玉[1] ZHU Yuhua;ZHANG Xiaoliang;WANG Shufang;PANG Meng;MA Yu(Exploration&Development Research Institute of Henan Oilfield Company,SINOPEC,Zhengzhou,Henan 450048,China)

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南郑州450048

出　　处：《石油地质与工程》2023年第3期9-16,共8页Petroleum Geology and Engineering

摘　　要：南阳凹陷中部魏岗鼻状构造带主体已整体实现井网覆盖,滚动勘探范围由鼻状构造主体转向相对勘探程度较低的周缘,目标由简单的整装构造油藏向断块破碎、储层非均质强的复杂构造油藏、断层-岩性油藏转变,因此,复杂断裂系统的精细刻画是增储挖潜的关键。利用断裂模型正演、构造导向滤波、反褶积提频、RGB属性融合等技术,井震协同建立复杂断裂分级识别技术,将测井资料垂向上与地震资料空间上对低级序断裂的高分辨率优势结合起来,实现高效快速地识别低序级小断裂,建立了魏岗油田小断裂的识别模式,降低了构造解释的多解性,有效指导了魏岗油田Ⅱ断块地堑构造带复杂断块油藏的高效增储建产。The main body of the Weigang nose structure zone in the central part of the Nanyang sag has been covered by well patterns.The scope of rolling exploration has shifted from the main body of nose structure to the periphery with relatively low degree of exploration,and the target has shifted from simple packaged structural reservoirs to complex structural reservoirs with broken fault blocks and strong reservoir heterogeneity,and fault lithologic reservoirs.Therefore,fine description of complex fault system is the key to increase reservoir and tap potential.By using the forward modeling of fault model,structural guided filtering,deconvolution frequency-raising,RGB attribute fusion and other technologies,well-seismic integrated method is used to establish the classification and identification technology of complex faults.The vertical logging data are combined with the high-resolution advantages of low-order faults in seismic data space,so as to realize the efficient and rapid identification of low-order small faults,establish the identification mode of small faults in Weigang Oilfield,reduce the structural interpretation ambiguity,and provide guidance for the efficient increase of reserves and production of complex fault block reservoirs in the graben structural belt of fault block II in Weigang Oilfield.

关 键 词：魏岗油田 断块油藏 断裂数值正演 属性体 断点校正 

分 类 号：P631.445[天文地球—地质矿产勘探]