大庆X油田葡萄花油层精细描述及剩余油分布特征研究

发布时间：2018-04-05 17:24

本文选题：油藏精细描述　切入点：井震结合　出处：《东北石油大学》2017年硕士论文

【摘要】：大庆X油田渗透率低、断层发育,在注水开发过程中暴露出注水井欠注比例高、油井受效差、产量递减快的矛盾。本论文的主要目的是运用多学科的理论和方法技术,对X油田葡萄花油层进行精细描述和剩余油的分布特征研究,为后续研究和评价该油田的剩余油挖潜措施、提高采收率服务。本文在调研国内外文献的基础上,通过开展以“井震结合、动静结合”及三维地质建模为手段的构造精细研究,落实了葡萄花油层精确的构造形态,同时对488条断层进行重新认识。通过储层相带精细刻画、单砂层物性参数解释等手段,开展了储层非均质研究,搞清了砂体空间展布状况,通过研究认为葡萄花油层平面及层间非均质性较强,层内非均质性较弱。结合三维地质建模与数值模拟,开展“动静结合”井点剩余油研究,搞清了剩余油的分布特征及形成原因,认为注水受效差、平面矛盾、层间矛盾形成的剩余油具有挖潜余地。通过开展挖潜对策潜力研究,共落实补空区8个、外扩区1个、油水井补孔25口井、转注2口井。该研究不仅为低渗透油田增储挖潜找到一条出路,同时也为大庆西部外围低渗透储层中断层发育的油田高效开发储备了技术。
[Abstract]:Daqing X oilfield has low permeability and developed faults. During the process of water injection development, the contradiction of high ratio of underinjection, poor efficiency of oil wells and rapid decline of production is exposed.The main purpose of this paper is to use multi-disciplinary theory and method technology to study the fine description and the distribution characteristics of residual oil in Gaohua reservoir of X Oilfield, and to explore the potential of remaining oil in this oilfield for further study and evaluation.Enhanced recovery service.On the basis of investigation and investigation of domestic and foreign literature, this paper carried out a detailed study of the structure by means of "combination of well and earthquake, combination of dynamic and dynamic" and 3D geological modeling, and carried out the precise structural form of the Grape Oil Reservoir.At the same time, 488 faults were rerecognized.By means of fine characterization of reservoir facies belt and interpretation of physical parameters of single sand layer, the study of reservoir heterogeneity is carried out, and the spatial distribution of sand body is made clear. It is considered that the plane and interlayer heterogeneity of Puhua oil reservoir is strong.The heterogeneity in layer is weak.Combined with 3D geological modeling and numerical simulation, the remaining oil in the well point of "dynamic and static combination" is studied, and the distribution characteristics and formation reasons of remaining oil are clarified. It is considered that the residual oil formed by poor water injection efficiency, plane contradiction and interlayer contradiction has the potential to be formed.Through the research on the potential of tapping potential, 8 filling areas, 1 expanding area, 25 oil and water wells filling holes and 2 injection wells were carried out.This study not only provides a way out for increasing reservoir potential in low permeability oil field, but also reserves technology for high efficiency development of low permeability reservoirs in the western part of Daqing.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13;TE327

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