英东油田一号构造油砂体展布研究

发布时间：2018-06-03 18:02

本文选题：英东油田 + 地层对比　；参考：《重庆科技学院》2015年硕士论文

【摘要】：英东油田一号构造是2010年发现的一个新油田，该油田类型为多断块背斜油气田，油田储层埋藏浅，油层跨度大。研究区断层情况复杂，钻井钻遇率低，后期分层系开发井位部署优化困难，这些严重影响着油田的增储上产。同时，保证油田早日实现分层系开发和油田开发最大经济效益化，急需开展油砂体的精细解释，摸清油砂体分布情况，，以达到科学合理开发为目的。本论文研究是在前人研究的基础上，充分利用现有的钻录井、测井、试油试采资料，运用精细地层对比技术，厘定油层组划分的标准，确定标志层的位置和油层组层数。通过重点井的沉积相标志和粒度深入研究，还原沉积环境，以及建立测井相与沉积相之间的转化关系，划分出上油砂山组为辫状河三角洲前缘亚相，砂体以水下分流河道为主，下油砂山组为三角洲前缘及浅滨湖交互沉积，砂体以滩坝为主。另外，建立了油砂层测井四性关系和各参数模型，确定了储层岩性、物性、含油性和电性特征。在此基础上，分断块进行砂体分布与油砂体分布研究，提出有利油砂体的分布区域与影响油砂体展布的主控因素，为油田后期分层系开发提供理论依据。
[Abstract]:The No. 1 structure of Yingdong Oilfield is a new oilfield discovered in 2010. The type of oilfield is multi-fault block anticline oil and gas field. The reservoir is shallow buried and the reservoir span is large. The complex fault situation, low drilling rate and difficulty in optimizing the location of stratified development wells in the later stage of the study area seriously affect the increase of reservoir and production in oil fields. At the same time, it is urgent to carry out fine interpretation of oil sand body and to find out the distribution of oil sand body in order to achieve scientific and reasonable development in order to ensure the development of stratified system and the maximum economic benefit of oilfield development as soon as possible. On the basis of previous studies, this paper makes full use of existing logging, logging and production test data, and applies fine formation correlation technology to determine the criteria for the division of reservoir groups, and to determine the location of marked layers and the number of reservoir formations. Through in-depth study of sedimentary facies marker and grain size of key wells, reduction of sedimentary environment and establishment of transformation relationship between logging facies and sedimentary facies, the upper oil sand mountain formation is classified as braided river delta front subfacies, and the sand body is dominated by underwater distributary channel. The Lower Yeshan formation is the delta front and shallow lake interactive deposition, and the sand body is dominated by beach and dam. In addition, the relationship between four properties of oil sand reservoir logging and each parameter model are established, and the lithologic, physical, oil bearing and electrical characteristics of reservoir are determined. On the basis of this, the distribution of sand body and oil sand body in fault block is studied, and the distribution area of oil sand body and the main controlling factors influencing the distribution of oil sand body are put forward, which provides the theoretical basis for the development of stratified system in the later stage of oilfield.
【学位授予单位】：重庆科技学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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