榆树林油田树2区块扶扬油层精细油藏描述
发布时间：2018-09-07 13:14
【摘要】：树2区块位于榆树林油田南部,主要开发的扶杨油层属于三类油层,1995年开始注水开发,逐渐暴露出水井注入难、油井采出难,层间和平面非均质性严重,由于井距过大油水井不能建立有效驱替系统,产量递减幅度大等诸多问题。为了改善树2区块开发效果,进一步深化区块地质特征认识,对该区块开展精细油藏描述研究,明确区块非均质程度,圈定剩余油相对富集部位,为高效开发剩余油、有效提高采油速度和采收率提供地质依据。本文通过对树2区块岩心及测井资料进行整理,采取旋回对比分级控制,不同相带区别对待的方法,完成6条骨架剖面闭合对比,最终实现182口井扶杨油层精细划分对比,建立起区块地层格架;在精细制作172口合成记录基础上,结合高分辨率相干体断层识别技术,井震结合完成工区多层系小断层的刻画,以油层组顶面构造作为趋势面,应用单井小层砂体顶面数据,在7个主力层识别正向微构造25个,负向微构造29个;通过调研和本次研究认为,研究区扶杨油层为浅水河流三角洲沉积体系,综合探井报告、岩心及测井曲线确定了各层沉积亚相环境,建立4类亚相15类微相测井相模式,完成树2区块68个沉积单元沉积微相平面组合;通过计算机技术、地质和数学等多学科综合技术有机结合对三维油藏进行精细地质建模,垂向匹配64个沉积单元,建立相控模型;最后运用地质方法结合动态油水井分析把研究区剩余油分为五类,其中以有采无注型和单向受效型剩余油为主,纵向上主要分布于FⅠ61、FⅠ72、YⅡ72、YⅡ61、YⅡ41沉积单元,基于这些研究成果可以进一步为油田开发提供坚实的地质基础。
[Abstract]:Block 2 is located in the south of Yushulin Oilfield. The Fuyang reservoir, which is mainly developed, belongs to three types of reservoirs. It began to be developed by water injection in 1995, and gradually exposed the difficulties of injection of wells, production of oil wells, and serious heterogeneity between layers and planes. Because the well spacing is too large, the effective displacement system can not be established, and the production decline range is large. In order to improve the development effect of block Shu-2 and further deepen the understanding of geological characteristics of the block, the fine reservoir description of the block is carried out, the degree of heterogeneity of the block is determined, the relative enrichment position of remaining oil is delineated, and the remaining oil is developed efficiently. Effectively improve the oil recovery speed and oil recovery to provide geological basis. In this paper, the core and logging data of Block Shu-2 are sorted out, and the closed correlation of 6 skeleton sections is completed by adopting the method of cyclic correlation grading control and different phase zones, and the fine division and correlation of 182 wells Fuyang oil reservoir are realized. On the basis of fine making 172 synthetic records, combining with high resolution coherent block fault recognition technology, well and earthquake combined to complete the description of multi-layer small faults in the working area, taking the top structure of oil formation as the trend surface, Based on the single well small layer sand body top surface data, 25 forward microstructures and 29 negative microstructures are identified in 7 main layers. Through investigation and this study, it is concluded that Fuyang oil formation in the study area is a shallow river delta sedimentary system, and a comprehensive exploration well report. The core and log curves determine the sedimentary subfacies environment of each layer, establish four subfacies and 15 microfacies logging models, complete the sedimentary microfacies plane assemblage of 68 sedimentary units in block Shu 2. The fine geological modeling of 3D reservoir is carried out by combining geology and mathematics, and 64 sedimentary units are matched vertically, and the facies control model is established. In the end, the remaining oil in the study area is divided into five categories by geological method and dynamic oil-water well analysis. The remaining oil in the study area is mainly composed of non-injectable and unidirectional residual oil, which is mainly distributed in F 鈪，
本文编号：2228365
[Abstract]:Block 2 is located in the south of Yushulin Oilfield. The Fuyang reservoir, which is mainly developed, belongs to three types of reservoirs. It began to be developed by water injection in 1995, and gradually exposed the difficulties of injection of wells, production of oil wells, and serious heterogeneity between layers and planes. Because the well spacing is too large, the effective displacement system can not be established, and the production decline range is large. In order to improve the development effect of block Shu-2 and further deepen the understanding of geological characteristics of the block, the fine reservoir description of the block is carried out, the degree of heterogeneity of the block is determined, the relative enrichment position of remaining oil is delineated, and the remaining oil is developed efficiently. Effectively improve the oil recovery speed and oil recovery to provide geological basis. In this paper, the core and logging data of Block Shu-2 are sorted out, and the closed correlation of 6 skeleton sections is completed by adopting the method of cyclic correlation grading control and different phase zones, and the fine division and correlation of 182 wells Fuyang oil reservoir are realized. On the basis of fine making 172 synthetic records, combining with high resolution coherent block fault recognition technology, well and earthquake combined to complete the description of multi-layer small faults in the working area, taking the top structure of oil formation as the trend surface, Based on the single well small layer sand body top surface data, 25 forward microstructures and 29 negative microstructures are identified in 7 main layers. Through investigation and this study, it is concluded that Fuyang oil formation in the study area is a shallow river delta sedimentary system, and a comprehensive exploration well report. The core and log curves determine the sedimentary subfacies environment of each layer, establish four subfacies and 15 microfacies logging models, complete the sedimentary microfacies plane assemblage of 68 sedimentary units in block Shu 2. The fine geological modeling of 3D reservoir is carried out by combining geology and mathematics, and 64 sedimentary units are matched vertically, and the facies control model is established. In the end, the remaining oil in the study area is divided into five categories by geological method and dynamic oil-water well analysis. The remaining oil in the study area is mainly composed of non-injectable and unidirectional residual oil, which is mainly distributed in F 鈪，
本文编号：2228365
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