【作者】 虞云岩；

【导师】 林畅松；

【作者基本信息】 中国地质大学（北京） ， 矿产普查与勘探， 2009， 博士

【摘要】 论文针对大安北油田的地质特点和开发现状,综合应用各种勘探开发资料,以石油地质学、现代沉积学、储层地质学、开发地质学和油藏工程等学科理论为指导,运用高精度层序地层学、油藏三维建模技术、储层预测技术、油藏数值模拟技术等现代油藏描述技术和方法,对大安北油田葡萄花油层进行了精细油藏描述和剩余油分布研究。运用高精度层序地层学的原理和方法,建立了研究区的高精度层序地层格架,在密集骨架剖面对比的基础上,将葡萄花油层划分为3个四级层序9个五级层序,为储层的精细描述奠定了基础。在前人研究的基础上,通过岩芯观察、沉积特征分析,进行了储层沉积微相研究,认为该区位于三角洲前缘相带,沉积微相主要发育分流河道、河口坝、远砂坝、席状砂等微相类型,储集砂体主要为河道及河口坝砂体。通过建立测井相识别标准,应用计算机自动识别实现了沉积微相识别定量化。针对研究区储层泥质含量高,物性差的特点,在测井曲线区域化校正的基础上,将岩心资料和测井资料结合起来进行大量统计分析,确定了本区葡萄花油层的四性关系解释模型,进行了单成因砂体属性解释。在岩心分析及储层属性参数解释基础上,对储层的非均质性进行了研究,统计分析了本区不同油层的宏观非均质特征,分析了主要微相的韵律特征。认为本区总体属于低渗较强非均质储层。应用储层建筑结构分析的思路将储层纵向细分,在高精度层序格架基础上在不同级次界面上下细划出了隔夹层。在建筑结构研究基础上对砂岩连通体内依据试油资料与储层物性之间的关系确定流动单元划分标准,细分了三类流动单元。以单井层序界面、隔夹层及单成因砂体为基础,采用不同建模方法确定井间隔夹层及单砂体属性空间分布,对于分布较为稳定的属性采用确定性方法建模,针对不稳定夹层采用随机或相控随机建模方法。采用油藏数值模拟方法,对剩余油进行了定量研究,确定了剩余油饱和度的时空定量分布,认为本区剩余油的分布主要受储层非均质控制。更多还原

【Abstract】 Considering the geological characteristics and development of Daanbei oil-field, applying exploration and development data, guided by the theory of petroleum geology, sedimentology, reservoir geology, development geology, and reservoir engineering, adopting the technical means of high-resolution sequence stratigraphy, reservoir 3D modeling, and reservoir numerical simulation, fine description and distribution of the remaining hydrocarbon of oil-field have been studied.Applying theory of high resolution sequence stratigraphy, Putaohua layer can be divided into three 4th order and nine 5th order high-resolution sequences Correlation of these stratigraphic units based on densely-spaced borehole data provides a high resolution correctable stratigraphic framework for the study of fine reservoir description.Analyzing the background and characteristics of sedimentary and core, the micro facies of the formation are studied. The conclusion is that this area is at the frontal delta zone, micro facies are mainly distributary channel, mouth bar and bays. sand sheet, and shallow-lake facies, the main reservoir sand is river sand and the bar, Based on microfacies types been recognized in the oil field , build a discriminance criterion for well logging curves and determine sedimentary microfacies automaticly.Considering the high shale content, poor rock difference and litho-electric, difficult physics interpretation in this area ,a better reservoir interpretation model for this area is presented by using the calibrated logging and Analyzing the relationship between core and well logging the reservoir parameters interpretation model established,Based on the analysis of core and reservoir parameters interpretation model the heterogeneous interpretation is studied. Macro heterogeneity and Vertical permeability rhythmicity study indicates that the reservoir bed is high heterogeneous.Barrier/interbed and architectural elements is built Based on observation of drill core and analysis of well logging curves,Based on the relationship between porosity,permeability and produced data , the inner connected sands can be classified three types of flow units ,The 3D geology model is build by applying 3D geology modeling. Some reservoir parameters are modeled using deterministic averaging methods,other are modeled using stochastic algorithm .The reservoir numerical simulation, quantitative research and distribution of remaining hydrocarbon in putaohua are discussed, The research indicated that the remaining oil distribution is controlled mainly by the reservoir heterogeneity更多还原