井震联合断层识别技术在南贝尔凹陷东次凹中的应用  

Application of joint well-seismic technique to fault interpretation in Southern Beier Sag,Hailaer Basin,China

作　　者：樊晓东[1,2] 李忠权[1,3] 陈国飞[2] 高兴友[2] FAN Xiaodong;LI Zhongquan;CHEN Guofei;GAO Xingyou(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology Chengdu 610059,China;Exploration and Development Research Institute of Daqing Oil field Company Ltd.,Daqing 163712,China;Key Laboratory of Tectonic Controls on Mineralization and Hydrocarbon Accumulation,China Ministry of Land and Resources,Chengdu 610059,China)

机构地区：[1]油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [3]构造成矿成藏国土资源部重点实验室(成都理工大学),成都610059

出　　处：《成都理工大学学报（自然科学版）》2018年第5期640-648,共9页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金项目(41672196;41741004);"十三五"国家重大科技专项(2016ZX05004-005;2017ZX05008-001);中国石油重大科技专项(2008E-12);四川省科技计划项目(2018TY0014);福建省高校人文社科研究基地互联网创新研究中心项目(IIRC20170102;闽江学院)

摘　　要：探讨逆时偏移处理技术及井震联合断层识别技术在复杂断块构造解释中的应用。以海拉尔盆地南贝尔凹陷东次凹为例,通过逆时偏移处理技术对原始三维地震资料进行重新处理,改善断层成像效果,频带和频率均提高10Hz以上;优选了倾角-方位角、三色混相分频、相干体和蚂蚁体属性,采用分步、分层次进行断层精细识别,结合井断点信息,精细刻画了断距15m以上断层。断层变化以新增小断层为主,断层组合样式为放射状、棋盘式、羽状、"入"字形等,走滑作用是导致断裂系统复杂化的重要因素。Reverse time migration technology and joint well seismic fault interpretation technology were used in fault interpretation in the complicated fault block reservoir in the southern Beier Sag of Hailaer Basin. In the practical application, seismic data were re processed by using reverse time migration technology to enhance accuracy of fault images, in which the frequency range and frequency were enhanced to above 10 Hz. For the new seismic data, dip azimuth attribute, color blending, coherence cube and ant-tracking attribution were optimized to achieve fine recognition of fault, and with well fault point information, faults above 15 m long can be identified and recognized. It was found that the main character of fault was the newly appeared minor faults with the fault combination patterns of radial shaped, orthogonal shaped, feather shaped, and ＂λ＂ shaped. It was considered that strike slip motion was responsible for the formation of complex faulting patterns.

关 键 词：井震联合 断层解释 逆时偏移 南贝尔凹陷 

分 类 号：P631[天文地球—地质矿产勘探] P54[天文地球—地质学]