川西北地区下二叠统储层研究

【作者】 石新；

【导师】 王兴志； 张帆；

【作者基本信息】 西南石油学院 ， 地球探测与信息技术， 2004， 硕士

【摘要】 本文主要依据地层学、古生物学、沉积学、成岩作用和储层地质学的理论，以野外剖面和钻井岩心为研究对象，采用传统野外、室内和现代测试手段的研究方法，结合前人研究成果，对川西北地区下二叠统地层、沉积相、成岩作用类型、特征、分布规律以及储层的基本特征和控制因素进行了详细的研究。主要内容包括：对川西北地区下二叠统地层进行了划分与对比，研究了该套地层的岩石结构组分特征、类型和形成条件：通过沉积相横向剖面的对比，并结合区域地质特征，深入研究了沉积相在纵、横向上的变化规律，确定了沉积相在平面上的分布及主要控制因素，分析了沉积相的纵向演化过程和建立了沉积相的平面立体模式：详细研究了该套地层所经历的成岩作用类型、特征及对储集空间的影响，建立了滩相储层的形成与演化模式：详细阐述了储层的基本特征和主要控制因素。最后，从沉积相、成岩作用的角度，分析了区内下二叠统储层的分布规律和有利储层的发育区块。更多还原

【Abstract】 Under the guidance of the theories of stratigraphy, palaeobology , sedimentology, diagenesis and reservoir geology, taken field profile and drilling cores as research object, and combined with achievement of predecessors, the sedimentary facies, diagenesis essential characteristics of reservoir and controlling factors for reservoir of lower Permian series Formation in northwest sichuan have been comprehensively studied. Both classic and modern methods have been used in this research. The main contents includes: stratigraphic classification and correlation of under Permian Formation, the rock texture characteristics, type and forming conditions of rock; change rule of the sedimentary facies in vertical and horizontal direction and distribution in plane and the essential controlling factors through correlation of sedimentary facies transverse profile and regional geologic characteristics; establishing plane stereoscopic model of sedimentary of beach by studying diagenesis; basic characteristic and the primary control factors controlling the formation of reservoir are analyzed. Finally, the distributed rule and the advantageous reservoir growth sub-area of reservoir in lower Permian series are analyzed through the sedimentary facies and diagenesis.更多还原