塔里木盆地塔中4油田CⅢ油组油藏精细描述

【作者】 孙磊；

【导师】 向阳； 孙龙德；

【作者基本信息】 成都理工大学 ， 油气田开发工程， 2003， 博士

【摘要】 本文针对塔中4油田开发中后期，含水上升较快，尤其是水平井底水锥进速度加快，在前人工作基础上重新对油藏进行精细描述，建立油藏储层地质模型，进行油藏数值模拟跟踪研究，重点是对单井底水锥进模拟，对现有开发方案进行预测，进而找到解决油田开发中后期存在的主要问题，保证油田稳油控水。 本文的主要内容是进行油藏精细描述，建立地质模型。主要从油藏构造、断层分布、储层沉积特征、物性特征、非均质性几个方面对油藏展开研究。在储层非均质性研究中针对海相地层沉积特点，重点研究夹层的分布规律。 在储层建模时，采用多种手段、方法相结合。首先以现代沉积学理论为指导思想，应用高分辨率层序地层学和高分辨率地震地层学理论方法，建立储层等时格架。在此基础上展开沉积相和微相分析研究，在层序格架和相控约束条件下进行各小层物性及物性数字特征分析研究，应用沉积、测井、地震反演方法建立小层属性确定性模型，同时在未钻井区充分应用水平井水平段资料建立储层属性模型。在建立了储层原型模型后，优选随机模拟方法对储层进行随机模拟，建立储层预测模型。 将上述研究结果建立地质知识库，进行油藏数值模拟跟踪研究，模拟水平单井底水锥进过程，分析水锥影响因素，在现有开发方案和新的开发调整方案下水平井的开发效果，优选开发方案降低底水锥进，稳油控水。更多还原

【Abstract】 The thesis makes an extensive study about the reservoir description and stochastic oil modeling and dynamic production analysis .taking TZ4 oil field CM oil reservoir as an esample.To solving the relative problems of reservoir :the rise of the water content ratio of reservoir.especially the quicken coning speed of horizontal well .We describe the TZ4 reservoir on the base of old study over again.It content the conformation .fault , the character of sediment .matter properties.the restain of the layer distrbuting of the reservoir.We stabling conformation model .geological model of the reservoir and prediction model.with the quantificational data study numerical simulation .On the base of this ,we simulate ang choice the best development project of the reservoir,restrain the bottom water coning rate,keep the state and high oil output.Under the guidance of modern sedimentology ,by means of the theory and method of high defintion stratigraphic geology.we establishes the primary model under the horizontal of high density wells.analyses the elements and mechaism of affecting the residual oil distributing in sandstone reservoir according to the geologic orgin and development condition.Secondly.on the basis of establishing reservoir model.the thesis choose the method of the combination of seismic inversion and stochastic modeling,which is a valid method for rebuilding the reservoir model.establishes the huge model of modeling,this thesie buildes reservoir parameter model by use of the upscding ,and through the study of reservoir simulation.the thesis describes the residual oil different development regulating plans,which provides scientific ground for flood pattern modification and flood development regulation.At the same time, this thesis stress study the layer of the mrrine deposit sand resivoir for the interlayer is the key factor which aroose the reservoir heterogeneity.Thesie build the interlayer model to grasp the key cause which arose the bottom water coning .We simulate the bottom water coning of individual well .pressure .water injection and so on .On the base of the simulation ,we choice the best production project.更多还原