东胜堡潜山精细油藏描述

发布时间：2018-04-04 04:02

本文选题：东胜堡潜山　切入点：裂缝　出处：《东北石油大学》2015年硕士论文

【摘要】：本次选题是为了配合勘探布署,通过油藏精细描述,利用现代地震、测井和油藏综合分析技术,对该油藏裂缝进行精细、定量的三维空间描述,建立潜山双重介质模型(裂缝和潜山变质岩基质孔隙)。在裂缝精细刻画的基础上,对东胜堡潜山进行储层测井综合评价,并利用容积法对其储量进行计算,达到提高最终采收率、改善油藏开发效果的目的,对研究区具有重大的理论和实践意义。得到如下认识和结论:(1)钻井揭示东胜堡潜山地层自下而上依次为太古界、下第三系沙河街组沙四段、沙三段、沙一段、东营组及上第三系馆陶组和第四系地层,其中太古界潜山和下第三系沙河街组沙三段为该区含油气目的层;(2)分布有3组构造裂缝,即北东~北北东向,北西向和近东西向,其中以北东~北北东向最为发育;(3)东胜堡潜山地层的岩性为一套变质岩体系,主要有长英质混合岩、浅粒岩、变粒岩、斜长角闪岩、片麻岩、以及辉绿岩、煌斑岩岩脉等,从孔隙类型和孔隙结构特点分析,东胜堡古潜山变质岩储层具有双重介质的特点;(4)利用7块压汞分析数据计算了东胜堡潜山油藏的基质含油饱和度,其含油饱和度为60%,与宏观裂缝含油饱和度加权后,计算出东胜堡油藏总的含油饱和度为69.44%。
[Abstract]:The purpose of this topic is to carry out a precise and quantitative 3D spatial description of the fractures in the reservoir by using modern seismic, logging and reservoir comprehensive analysis techniques, in order to coordinate with the exploration deployment, through fine reservoir description, and by using modern seismic, logging and reservoir comprehensive analysis techniques.The dual medium model of buried hill (fracture and buried hill metamorphic rock matrix pore) is established.On the basis of fine description of fractures, the comprehensive evaluation of reservoir logging on Dongshengbao buried hill is carried out, and its reserves are calculated by volume method, so as to improve the ultimate recovery factor and improve the reservoir development effect.It is of great theoretical and practical significance to the research area.The following understanding and conclusion are obtained: (1) drilling reveals that the strata of Dongsheng Fort buried hill are Archean, Shahejie formation, Sha 3, Sha 1, Dongying formation and Upper Tertiary Guantao formation and Quaternary strata from the bottom to top, and the lower Tertiary Shahejie formation, the Shahejie formation, the Sha 1 formation, the Dongying formation and the Upper Tertiary Guantao formation and the Quaternary strata.The Archean buried hill and the third member of Shahejie formation of the Lower Tertiary Shahejie formation are oil and gas bearing target beds in this area.) there are three groups of structural fractures, namely, NNE, NW, NW and NW, respectively.The lithology of Dongsheng Fort buried hill strata is a set of metamorphic rock system, mainly composed of felsic migmatite, shallow-grained rock, granulite, amphibolite, gneiss, diabase, lamprophyre vein, etc.Based on the analysis of pore types and pore structure characteristics, the reservoir of Dongshengbao buried hill metamorphic rock has the characteristics of dual media. (4) the matrix oil saturation of Dongshengbao buried hill reservoir is calculated by using 7 block mercury injection analysis data.The total oil saturation of Dongshengbao reservoir is 69.44 after weighted with macroscopic fracture oil saturation.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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