【作者】 李继红；

【导师】 曲志浩；

【作者基本信息】 西北大学 ， 矿产普查与勘探， 2002， 博士

【摘要】 本文以胜坨油田坨30断块沙二段油藏为例，运用现代地层学、沉积学、构造地质学、储层地质学及油藏工程学等多学科的理论和方法技术，针对胜坨油田坨30断块这一复杂断块油藏的地质特征、开发特点，综合多学科信息，采用动静态结合进行了储层多层次解剖、建立了复杂断块油藏地质模型，揭示了剩余油分布特征，提出了剩余油挖潜方向和措施。研究成果及创新在于： 依据现代层序地层学原理首次对研究区进行了高分辨率层序地层的划分与对比；克服了砂体对比的局限性，准确建立了层序地层格架及储层细分格架；揭示了各砂体的成因类型及微相展布。 重新确定了研究区的断层展布及构造特征；首次从断层纵向和横向封堵特征入手，运用模糊数学综合评价方法对研究区断层的封闭性和封闭程度进行了综合评价；总结归纳了断层封闭模式。 详尽论述了储层的微观结构及渗流特征；首次从岩石相的角度，按不同相带和不同开发时期分析了注水开发对储层岩石物理性质的影响及其变化规律。提出了地质条件约束测井建模和处理的方法，按照不同沉积相带和不同开发时期建模，使储层参数计算及水淹层定量评价精度提高。 首次进行了不同开发时期储层多参数流动单元分析和建模，应用聚类分析方法提出了四级划分方案，同时提出了不同级别流动单元内剩余油的分布特征及其控制因素。 从沉积微相、微型构造、断层封闭性、流动单元、储层非均质性、真实砂岩水驱油实验和油藏数值模拟及注采关系等方面详尽揭示了研究区复杂断块油藏主力油层剩余油分布特征、形成机理及其影响因素，建立了剩余油分布模式。研究成果已用于油田剩余油挖潜，产生了好的经济效益。更多还原

【Abstract】 With Sha 2 member of the fault block of Tuo 30 in ShengTuo Oilfield as an example, the author studied on aspects of the characteristics of reservoir, established a geological model of the oil accumulation of complex fault block, revealed the distribution of remaining oil. Based on the theory and methods of modern sequence stratigraphy, sedimentology, structure geology, hydrocarbon reservoir geology and reservoir engineering, this study put forth measures and directions of digging remaining oil in view of the geological characteristics and exploitation condition of the oil accumulation, applying multidiscipline information and combining static information with dynamic information. The results and new ideas are as follows:According to the theory of modern sequence stratigraphy, Sha 2 member of the fault block of Tuo 30 were first studied on the division and contrast of high discernible formation sequence. The results had advantages over limits of contrasts between sandbodys. Consequently, formation sequence and reservoir subdivision framework were established accurately, genesis types and sedimentary micro-facie distribution of sandbody units were indicated.The fault distribution and structure characteristics of the fault block were reconfirmed. The sealing degree was firstly evaluated based on the sealing characteristics of the faults transversally and longitudinally, by means of comprehensive assessment of fuzzy mathematics. Sealing models of the faults were developed.The paper disserted in detail micro-textures and filtration characteristics of the reservoir. It is first time that the factors of injecting development affecting on rock physical characteristics of the reservoir and its changing systems were analyzed with respect to rock-facies, according to different periods of injecting development and different sedimentary facies. The author put forward a method of establishing log explanation models with the restriction of geological conditions. The log explanation models for different periods and different sedimentary facies were developed to improve the calculation of reservoir parameters and quantitative evaluation of water flooding beds.The author originally analyzed the characteristics of flow units at different periods of injecting development and established four types of the flow units from many parameters of reservoir, meantime, introduced the remaining oil distribution within the different types of the flow units at the different periods of injecting development and its control factors.From sedimentary microfacies, mini-structure, fault sealing, flow units, reservoir heterogeneity, water-oil displacement experiment with real sandrock, reservoir numerical imitation and injecting and producing relation etc., the distribution characteristics, formation mechanism and controlling factors of the remaining oil in the oil accumulation were revealed in detail and the distribution pattern of them was established. The results have been applied to the fault block of Tuo 30 in ShengTuo Oilfield. As a result, significant economic benefits are brought into play.更多还原