丰富川油田延长组长2油层沉积微相测井识别技术的分析研究.pdf

中文摘要论文题目: 专业: 硕士生: 指导教师: 丰富川油田延长组长2油层沉积微相测井识别技术研究石油与天然气工程.. 高新奎(签名) 量堑垒谭成仟(签名) 杨悦(签名) 摘要丰富川油田位于陕西省延安市李渠镇丁庄与冯庄附近,构造上位于鄂尔多斯盆地陕北斜坡中南段,构造比较平缓,地层倾角小于10。纵向上发育了上三叠统延长组长6、长2油层等多套含油层系,开发目的层为长2油层。长2储层属于三角洲水上平原亚相沉积,岩性细、物性差,属于中低孔、低渗~特低渗储层,%,。基于前人研究,从研究区实际资料出发,以层序地层、沉积岩石学、矿场地球物理、计算机技术等理论为指导,综合运用岩心、测井等资料,用最佳方差聚类分层法理论,实现了利用测井曲线进行自动分层的技术方法;通过曲线元分析方法, 建立了一套较为完善的测井沉积微相识别技术方法,对大批非取心井沉积微相的划分; 以标志层为基准、以旋回及厚度为参考,运用标准井和骨干剖面分级控制、反复对比, 将丰富川油田长2l含油层组划分为长211、长212、长213、长214四个小层。运用由点到线、由线到面的研究方法,在单井相分析的基础上,辅以先进的数学理论和计算机方法, 进行沉积微相剖面及平面展布特征分析,对研究区沉积微相演化规律进行了综合研究。关键词:沉积微相;测井相;最佳方差聚类:测井曲线元:丰富川油田论文类型:应用研究英文摘要 Subject:Logging Recognition ofSedimentary Microfacies inFeng Fuchuan OiWield Speciality:Oil&Gas Engineering Name:Gao Xinkui(signature) Instructor:Tan Chengqian(signature) Yang Yue(signature) ABSTRACT Feng Fuchuan oilfieldislocated inDing country andFeng country ofLiqu town inYanan, whose structure,relative placid and angle ofbedding smaller than one degree,is located in middle and southpart intheShanbeislope ofEerduos develops Chang 6,Chang 2 and other oillayers ofYanchang Formation Tsystem vertically and itsexploitation subj ect reservoir isChang 2 reservoir isdelta on water plain lithologic character isslender and physical property intolow-to-moderate holes,low permeable andextremely low permeable,whose oilporosity %andpermeability is on predecessors’rearch and actualdata,guided by the Sequence stratigraphy,seismicexploration,puter technology theory,bined谢th core,logging,etc,using optimum variance clustering procedure theory produces automatic zoning method by bore logs;by CHIVe primary analysis technique,improved logging sediment microfacies identify technique isframed and numerous noncoring sediment microfacies axe divided;based onmarker bed,cyclic and thickness,by repeated step control oftype welland mainstay cutplane pare,the Chang 2 oillayer isdivided intoChang 21,Chang 212,Chang 213andChang