大庆萨中开发区中区西部高台子油层精细地质研究

发布时间：2018-04-19 14:54

本文选题：中区西部高台子 + 油藏精细描述　；参考：《东北石油大学》2017年硕士论文

【摘要】：中区西部高台子区块位于萨尔图油田中部,加密井于2009年投入开发,由于区块加密井开发的目的油层较多、油层物性差且临近高含水层,该区块基础含水高于预期含水,含水上升速度较快,短期内就进入特高含水期开采阶段。为了进一步延长高台子区块稳产期,实现“稳油控水”的目的,必须进一步对油层进行精细地质研究,弄清剩余油分布特征,适时采取措施挖潜方法。中区西部高台子加密井网已进入特高含水期开采,注入水低效无效循环严重。通过动、静态资料综合分析,寻找剩余油的富集区。针对不同储层沉积微相及单砂体的动用、水淹状况,优化各项措施。本文介绍了中区西部高台子的地质特征和开发概况,为进一步提高采收率,对该区块油藏进行精细描述,介绍了沉积单元的划分、沉积类型和特征以及储层非均质性特征分析;通过数值模拟计算,得到了中区西部平面剩余油饱和度分布图,并通过数值模拟结果数据,统计分析了中区西部剩余油分布规律,总结出了中区西部平面剩余油的分布特征和规律。针对区块存在的问题和剩余油潜力分布,制定了调整思路,确定了精细挖潜的工作安排,进行了效果预测和效益评价。总结出开采过程的实践认识,解决影响因素,摸清单井潜力,大力推进精细分析,精细挖潜,精细测调,通过油水井的综合调整,使开发效果达到极限,为水驱特高含水期的“控水挖潜”工作提供一定的理论和实践依据。
[Abstract]:Gaotaizi block in the west of Central region is located in the middle of Saltu Oilfield, and the infill well was put into development in 2009. Due to the large number of target reservoirs, poor physical properties of reservoir and close to high aquifer, the basic water cut of this block is higher than the expected water cut.The speed of water-cut rise is fast, and it will enter the stage of very high water cut in the short term.In order to further prolong the stable production period of Gaotaizi block and realize the purpose of "stabilizing oil and controlling water", it is necessary to further study the fine geology of the reservoir, make clear the distribution characteristics of remaining oil, and take appropriate measures to tap the potential.The pattern of Gaotaizi infill well in the west of central district has entered the stage of super high water cut, and the inefficient cycle of injection water is serious.Through comprehensive analysis of dynamic and static data, a rich area of remaining oil is found.According to the production of sedimentary microfacies and single sand body in different reservoirs, the measures are optimized.In this paper, the geological characteristics and development situation of Gaotaizi in the western part of the central area are introduced. In order to further improve the oil recovery, the reservoir in this block is described in detail, and the division of sedimentary units, sedimentary types and characteristics, and the analysis of reservoir heterogeneity characteristics are introduced.Through the numerical simulation, the distribution map of the remaining oil saturation in the western part of the central region is obtained, and the distribution law of the remaining oil in the western part of the central region is statistically analyzed through the data of the numerical simulation results.The distribution characteristics and laws of the remaining oil in the western part of the central region are summarized.In view of the problems existing in the block and the potential distribution of remaining oil, the adjustment thought was made, the working arrangement of fine tapping potential was determined, and the effect prediction and benefit evaluation were carried out.This paper summarizes the practical understanding of the production process, solves the influence factors, finds out the potential of the single well, vigorously promotes the fine analysis, the fine tapping of potential, the fine survey and adjustment, and makes the development effect reach the limit through the comprehensive adjustment of the oil and water wells.It provides a certain theoretical and practical basis for "controlling water potential" in the period of water flooding with extra high water cut.
【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】：TE327;P618.13

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