文档介绍：中国石油大学胜利学院本科生毕业设计
( 论文)
孤东二区Ng沉积相研究
学生姓名崔新颖
学号 200610012102
专业班级资源勘查工程06级1班
指导教师: 常兵民
2010年 6 月 6 日
摘要
本文主要通过岩心和薄片观察、粒度分析、测井资料解释等手段,对孤东油田二区馆陶组沉积相进行了研究。通过进行单井和连井剖面相分析以及综合相关地质资料,建立了孤东油田二区馆上段沉积微相模型,阐明了该区域内沉积微相的展布与演化规律,揭示了沉积微相对储层物性、剩余油分布规律的重要控制作用。研究表明:该区发育馆上段上部曲流河与下部辫状河两种沉积相模式,具备河床亚相、堤岸亚相、河漫亚相和废弃河道亚相四种亚相类型,具有边滩、河道充填沉积、心滩微相、谷底滞留沉积、河道边缘、决口扇、道间洼地和漫滩沉积等8种沉积微相。平面上沉积微相中以边滩、河道边缘、河漫沉积为主,砂体呈席状、条带状、豆荚状等,分叉、交叉频繁,厚度变化较快。沉积微相对储层物性和剩余油分布具有控制作用,该区沉积微相模型的建立对储层非均质性研究及控水稳油和寻找剩余油气具有重要意义。
关键词:沉积特征;相模式;微相类型;馆上段;孤东油田二区
ABSTRACT
In this paper, core and slice through observation, particle size analysis, logging data interpretation and other means, Guantao Gudong Oilfield as sedimentary facies were studied. Well connected through to the single well and integrated facies analysis and geological data related to the establishment of the isolated East Oilfield as in the upper sedimentary facies model, illustrates the region microfacies distribution and evolution, revealing the sedimentary microfacies reservoir properties, the remaining oil distribution of the important control function. The results show that: the area-steps developed in the upper river and the lower part of the braided river facies model of two, with river facies, subfacies embankment, River Man subfacies and abandoned channel facies of four sub-facies, with beach side , channel deposits, the heart beach facies, bottom sediment retention, river edge, crevasse splay, floodplain deposits located between depression and 8 kinds of sedimentary facies. Micro-phase deposition plane to side beach, river edge, river diffuse deposits in the sand takes the shape of sheet, strip, pod-like, etc., bifurcation, cross-frequent changes in the thickness of fast. Sedimentary microfacies Reservoir and the remaining oil distribution is controlled, the district sedimentary facies model of the reservoir heterogeneity and control oil and water stability is important to find the remaining oil and gas.
Key words: Sedimentary characteristics;