【作者】 杨承林；

【导师】 樊太亮；

【作者基本信息】 中国地质大学（北京） ， 能源地质工程， 2008， 博士

【摘要】 本文将油藏描述和油藏数值模拟两大支柱技术紧密结合起来,从静态和动态、从地质和开发不同角度对东濮凹陷文33块沙二下油藏进行综合研究,预测剩余油分布,探讨一条老油田油藏描述和数值模拟一体化研究思路。采取沉积旋回-岩相厚度法,将本区划分了8个砂组58个细分小层,建立了对比骨架剖面和细分小层基础数据库。从区域构造发育展布规律入手,重点理顺断块西部、北部复杂带的断层格局及小断层组合及其对剩余油的影响。北部复杂带自西向东主要发育三个条带。西部复杂带断层有规律展布,由一系列西倾的、文东断层的补偿断层组成,是文东断层和文140断层所夹持的地堑带。研究地层沉积特征表明,本区为浅水湖泊三角洲沉积体系,主要发育水道、前缘砂、水道间、远砂及泥坪等5种微相。在测井资料环境校正及数据标准化的基础上,根据水淹井与邻近老油井测井资料的变化关系,分析注入水对四性关系的影响及其在测井资料上的反映,建立储层参数解释模型。储层非均质性研究认为本区层间非均质性较强,储层层内非均质性强。渗透率在平面上变化快,分布极不均匀,非均质性严重。采用相控建模方法建立储层参数的三维模型,以细分小层为基础输出三维地质模型数据体,直接用于数值模拟模型,实现油藏描述与数值模拟一体化;通过垂向上细分层策略、细化相渗曲线类型及其辅助技术应用,实现非均质属性在油藏数值模型中的表征;通过精细历史拟合,储量拟合相对误差仅0.5%,各项开发指标拟合程度比较高。通过动态综合分析和数值模拟方法有机结合,分别以剩余油饱和度、剩余油有效厚度和剩余油丰度表征剩余油分布。研究表明,剩余油形成与分布主要受构造、沉积相带、储层非均质性和开发因素的控制。断层附近、断层夹角区域、构造高部位剩余油富集;水下分流河道微相采出程度高,水淹严重,剩余油零散分布;前缘砂、水道间和远砂微相采出程度相对低,水淹较轻,剩余油基本上连片分布;平面上井网不完善、注采不配套的部位是剩余油的相对富集区。分析了剩余油潜力,提出挖潜思路。更多还原

【Abstract】 According to the integrated research mentality, this work unifies closely two big prop technologies (the reservoir description and the reservoir numerical simulation) and conducts the comprehensive study from the static state, the dynamic and the perspective of different geology and the development to the Wen 33 S2 under reservoir Hollow Dongpu. To take deposition cycles - the thickness of the rock, this area will be divided into eight sand groups 58 sub-layer.A contrast skeleton profile and the basic database of sub-layer will be established.Start from the areal structure growth and distribution rule, the focus straightening out the fault pattern and minor fault combination and distribution and to remaining oil influence in fault block west, northern part complex zone. The north complex zone mainly grows three bandings from west to east. The fault in the western complex zone orderly distribute and compose of a series of the fault which leans west, Wendong compensation fault. It is the rift valley belt which Wendong fault and Wen 140 faults support on both sides.Study of sedimentary strata characteristics indicate that this area is shallow lakes Delta sedimentary system, growing five kinds of micro-phase such as the canal,between the canals, front sand, far sand ,mud and so on.On the basis of data correction in the environment and standardized data, analysis of the relations of injected water and four property ,and the impact of the logging data on the reflection ,the reservoir parameters interpretation model established.The research of the reservoir heterogeneity reveals the heterogeneity between the layers and the inner layer to be strong. The permeability changes quickly in the plane, the distribution is extremely non-uniform, heterogeneity is serious.Using a modelling method controlled by facies, three-dimensional model of the reservoir parameter was established.Be output directly the data body of a 3D geological model built up by Petrel modeling software to a VIP numerical simulation software, set up a geological model for reservoir simulation, achieving reservoir description and simulation integration.Through vertical on the breakdown of the strategy, details of the relative infiltration curve type and its supporting technology applications, and heterogeneous properties in the reservoir numerical model be characterized.The the historical fitting indicated that each development index matching degree is quite high.Through organicly combining dynamic and comprehensive analysis and numerical simulation, the remaining oil distribution be described with the remaining oil saturation, the effective thickness of the remaining oil and remaining oil in abundance, respectively. The research indicated that the remaining oil forms with the distribution is controlled mainly, the sedimentary facies zone, reservoir heterogeneity and the development factor. Nearby the fault, the region clamped with faults , high structural parts ,the remaining oil is enriched.The submarine distributary channel micro-facis has high recovery, the flooding is serious, remaining oil scattered distribution. These Minin phase such as Front sand, between the canal and far sand have a relatively low recovery level, the flooding is light, basically remaining oil sectors-connecting distribution. In the plane the location the well pattern is imperfect, injection-production well pattern is not matching , is the remaining oil relatively rich region.By analyzing the potential of the residual oil , the specific ideas excavated the residual oil was proposed.更多还原