曙三区块剩余油分布与二次开发方案设计

发布时间：2018-06-17 05:38

本文选题：曙3区块 + 剩余油　；参考：《东北石油大学》2015年硕士论文

【摘要】：曙三区位于辽河盆地西部凹陷西斜坡中段,是曙光油田储量较集中、地质条件较复杂的主力开发区块之一。针对本区油藏地质、开发现状及存在的问题,论文以高精度层序地层学为指导建立精细的油藏等时地层格架,应用储层沉积学的系统理论和方法解剖油藏微相单元,建立精细、客观的三维地质模型,将已有岩芯分析资料和邻区开发资料相结合,以沉积微相为单元和三维地质模型为基础进行开发动态分析,明确曙三3区水淹状态和剩余油分布规律,在此基础上提出调整部署建议,制定二次开发方案。论文在分析曙3区块剩余油分布规律的基础上,针对开发中存在的难点问题,通过动静态相结合的分析方法,制定了二次开发方案,提出了合理的剩余油挖潜对策,取得以下认识：(1)通过曙三区块开发现状、构造特征和储层非均质性综合分析,明确了目前曙三区块油井开发中存在的主要问题。(2)以高分辨率层序地层学为指导,运用本区湖水面变化的信息,识别全区的对比标准层,采用旋回对比、分级控制的方法建立了精细油藏地层格架。(3)在沉积微相、储层横向预测和储层建模分析基础上,以沉积模式为指导,探讨研究区储层砂体的分布规律,指出了曙三区杜家台油层三角洲前缘砂体三次明显的进积→退积过程。(4)以小层沉积微相为单元进行水淹状态及剩余油分布分析,在采出程度、水淹状况和油井侧钻后测井解释与原井的差异性等分析基础上,提出了调整部署建议,提出了二次开发建议,制定了相应的挖潜对策,同时进行了产油效果预测。论文的相关研究成果为曙3区块剩余油的开发方案编制打下了良好基础,对我国东部老油田的开发具有参考价值。
[Abstract]:Shu3 area is located in the middle section of west slope of western depression of Liaohe basin. It is one of the main development blocks of Shuguang Oilfield with concentrated reserves and complicated geological conditions. In view of the present situation of reservoir geology, development and existing problems in this area, the fine isochronous stratigraphic framework is established under the guidance of high-precision sequence stratigraphy, and the microfacies unit of reservoir is dissected by the systematic theory and method of reservoir sedimentology. The objective three-dimensional geological model combines the existing core analysis data with the development data of adjacent areas, and based on the sedimentary microfacies as the unit and the three-dimensional geological model as the basis, the development dynamic analysis is carried out, and the water-flooded state and the distribution law of remaining oil in the Shu _ 3 area are clarified. On the basis of this, the proposal of adjusting deployment is put forward, and the secondary development scheme is formulated. On the basis of analyzing the distribution law of residual oil in block Shu 3, aiming at the difficult problems existing in the development, by combining the dynamic and static analysis method, the paper formulates the secondary development scheme, and puts forward reasonable countermeasures for tapping the potential of remaining oil. Through the comprehensive analysis of the present development situation, structural characteristics and reservoir heterogeneity of Shu3 block, the main problems existing in oil well development in Shu3 block are clarified.) the high resolution sequence stratigraphy is used as the guide. On the basis of sedimentary microfacies, reservoir lateral prediction and reservoir modeling analysis, using the information of lake water surface change in this area, identifying the contrast standard layer in the whole area, adopting the method of cyclic correlation and hierarchical control, the fine reservoir stratigraphic framework is established, which is based on sedimentary microfacies, reservoir lateral prediction and reservoir modeling analysis. Under the guidance of sedimentary model, the distribution law of reservoir sand body in the study area is discussed. It is pointed out that there are three distinct progradation and retrogradation processes in the delta front sand body of Dujiatai oil reservoir in Shu 3 area. The sublayer sedimentary microfacies are taken as the unit to analyze the water-flooded state and the distribution of remaining oil, and the recovery degree is obtained. On the basis of the analysis of water flooding condition and the difference between the log interpretation and the original well, the adjustment and deployment suggestions are put forward, the secondary development suggestions are put forward, the corresponding countermeasures for tapping potential are worked out, and the oil production effect is forecasted at the same time. The related research results of this paper lay a good foundation for the development scheme of remaining oil in Block Shu 3 and have reference value for the development of old oil fields in the east of China.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE327

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