垦西油田东营组高分辨率层序地层与沉积微相研究——以K71断块区为例  

Study on high resolution sequence stratigraphy and sedimentary microfacies of Dongying Formation,Kenxi Oil Field——Take fault block K71 as an example

作　　者：郭秀蓉[1] 刘晓峰[1] 姜涛[1] 

机构地区：[1]中国地质大学资源学院,湖北武汉430074

出　　处：《大庆石油地质与开发》2007年第6期1-5,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家自然科学基金青年基金项目"东营凹陷盐-泥构造与超压含盐流体活动的关系研究"(40402014)

摘　　要：以高分辨率层序地层学和传统沉积学理论为指导,通过岩心观察和测井相分析,在基准面旋回的识别与划分基础上,建立垦西油田东营组地层的高分辨率等时地层格架,并进行了基准面旋回对比,进而应用油藏描述技术中的沉积微相分析方法,遵循从点(标准井测井沉积微相分析)到线(全区多井对比)的基本原则,对垦西油田K71断块区东营组储层的沉积微相类型及特征进行了详细研究。研究认为,东营组为湖泊—三角洲沉积相,而且可以细分为三角洲平原沉积亚相、三角洲前缘沉积亚相及前三角洲沉积亚相,每种亚相都具有特定的沉积微相构成及特征,这些特征的识别对基准面对比及其储层物性的预测都具有重要意义。Based on core observation and well log analysis, guided by the theory of high - resolution sequence stratigraphy and traditional sedimentology, and with the application of base level cycle identification and classification, the isochronous stratigraphic framework of Dongying Formation in Kenxi oilfield has been established and the basal level cycles are compared. Besides, followingthe basic principle of from a point （sedimentary microfacies analysis from type well logging） to a line （multi wells correlation in the total area） and according to sedimentary microfacies analysis method used in reservoir description, the types and characteristics of sedimentary microfacies in Dongying reservoir of fault block K71 have been studied in detail. The results show that mainly lake -delta sedimentary system has been developed in Dongying Formation. The sedimentary facies can be subdivided into delta plain, delta front and predelta sedimentary subfacies, each of which has special compositions and characteristics. The identification of these characteristics is significant both for basal level cycle correlation and reservoir quality prediction.

关 键 词：高分辨率层序地层 沉积微相 三角洲 垦西油田 

分 类 号：TE121.3[石油与天然气工程—油气勘探]