鄂尔多斯盆地延长组长6粘土矿物分析

发布时间：2018-05-18 08:42

本文选题：鄂尔多斯盆地 + 粘土矿物　；参考：《东北石油大学》2017年硕士论文

【摘要】：论文的研究基于大量的岩心样品、测井录井资料的分析;同时采用了普通薄片、铸体薄片、电子显微镜、X-衍射、恒速压汞实验、物性测量实验、敏感性实验(水敏、速敏、酸敏、碱敏)、相渗实验和水驱油实验。总结分析了粘土矿物同储层各种特性之间的关系,其研究成果对油田开发和开采过程具有很好的指导作用。为了从整体上对储层粘土矿物的特征进行掌握,首先通过岩心观察描述、测井解释等对研究区域的沉积背景、物源体系、沉积相类型等基础性特征进行了研究。随后,在沉积学的研究的基础之上,通过镜下鉴定、压汞实验等手段对储层岩石学、物性及孔隙类型等特征进行了分析。在对储层特征有了整体掌握之后,运用扫描电镜、X-衍射及各种渗流实验,逐步开展对粘土矿物的研究。首先是粘土矿物自身特征,分为宏观与微观两部分。宏观上探究不同种类粘土矿物的组合关系,其相对含量变化趋势,以及在平面上不同种类粘土矿物的绝对含量展布特征。在微观上分析粘土矿物的产状、晶体形状、与矿物颗粒关系等赋存状态,探讨其与沉积、成岩作用等相关的成因机制。其次是粘土矿物对储层的影响。这种影响分为粘土矿物自身形成对储层物性、孔隙结构的影响以及开发过程中同孔隙流体反应对储层产能造成的破坏两方面。文中通过对不同样品测量的孔渗数据、压汞实验中的部分数据,和X-衍射得出的粘土矿物含量数据进行交汇比对分析,分析不同种类的粘土矿物对储层物性与孔隙结构的影响与控制作用。根据压汞实验讨论粘土矿物对储层整体容纳能力的影响、并且运用样品测试得到的敏感性指数、相渗数据与水驱油实验数据,比对粘土矿物含量,研究不同粘土矿物对储层产能造成的影响。
[Abstract]:The research of this paper is based on a large number of core samples, the analysis of logging data, the use of ordinary slice, casting thin slice, electron microscope X-diffraction, constant speed mercury injection experiment, physical property measurement experiment, sensitivity experiment (water sensitivity, speed sensitivity), Acid-sensitive, alkali-sensitive, phase permeation and water flooding experiments. The relationship between clay minerals and reservoir characteristics is summarized and analyzed. In order to master the characteristics of clay minerals in reservoir, the basic characteristics of sedimentary background, provenance system and sedimentary facies are studied by core observation and log interpretation. Then, on the basis of sedimentology, the petrology, physical properties and pore types of reservoirs are analyzed by means of microscopic identification and mercury injection experiment. After the reservoir characteristics have been mastered, the study of clay minerals has been carried out step by means of scanning electron microscope (SEM) X-ray diffraction and various percolation experiments. First of all, clay minerals have their own characteristics, which are divided into two parts: macro and micro. Macroscopically, the combination relationship of different kinds of clay minerals, its relative content change trend, and the distribution characteristics of absolute content of different kinds of clay minerals on the plane are studied. The occurrence states of clay minerals, such as occurrence, crystal shape, and relationship with mineral particles, are analyzed microscopically, and the genetic mechanisms related to sedimentation and diagenesis are discussed. The second is the influence of clay minerals on reservoir. This influence can be divided into two aspects: the formation of clay minerals themselves, the influence of pore structure and the destruction of reservoir productivity caused by the same pore fluid reaction during the development process. In this paper, the porosity and permeability data measured by different samples, some data in mercury injection experiment and the clay mineral content data obtained by X- diffraction are compared and analyzed. The influence and control of different kinds of clay minerals on reservoir physical properties and pore structure are analyzed. According to the mercury injection experiment, the influence of clay minerals on the overall capacity of reservoir is discussed, and the sensitivity index, the permeability data and the experimental data of water flooding are used to compare the clay mineral content. The effect of different clay minerals on reservoir productivity is studied.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE31;P618.13

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