大庆南四区西部萨ⅡC-D油层油藏工程方案研究

发布时间：2018-02-02 02:16

本文关键词： 南四区西部背斜构造地质特征开发方案　出处：《东北石油大学》2016年硕士论文　论文类型：学位论文

【摘要】：大庆萨尔图油田南四区西部位于大庆长垣萨尔图油田南部,北起南三区三排,南至南四区三排,西起葡Ⅱ组内油水边界线,东至萨大公路,开发面积为8.44km~2,地质储量5690.76×104t。通过对南四区西部萨ⅡC-D油层区块地震、钻井、录井、取心、分析化验资料的分析整理,综合评价构造特征、油气水分布特征、油藏类型、流体性质、沉积特征、储层特征、温度系统、压力、渗流物理特征和试油试采试注分析等综合地质特征,精细刻画地质体,搞清开采特性,编制开发方案,明确了本块的开发原则、开发方式、井网、井距、注水方式、注采压力系统和合理压力水平等开发指标。获取以下成果和认知:1、油藏特征认识。大庆萨尔图油田南四区西部萨尔图、葡萄花、高台子油层为统一压力系统,通过研究平均原始地层压力、原始饱和压力、原始地饱压差、油层温度、油层原始压力系数及岩石压缩系数,确定油藏类型为背斜构造油藏,边水、底水均不活跃。2、储层特征研究。综合考虑完善的分析化验、系统取心的资料,对储层矿物的沉积特征、孔隙结构、岩石学特征、物性等储层特征的研究,充分评价储层特征。3、油藏工程设计。结合此区的油藏综合地质特征、试油试注试采分析等方面的研究,确立开发方式、开发原则、井网、井距、注水方式、注采压力系统及合理压力水平等详细开发的指标。4、注采井别方案设计。在油藏地质特性的研究及油藏工程设计的基础上,精确定位油层富集区域,明确合理的注采井网,整体部署,实现高质量合理的开发。5、开发指标预测。对开发前期试油、试采的资料进行分析和论证,考虑平面上的产能不同,合理确定单井初期产量及递减率,准确地预测开发各项指标。通过对油藏进行综合地质特征的研究及试油试采试注详细的分析,精细描述刻画地质体,搞清开采的特性,编制完备的开发方案,实现高效合理开发的目的。其研究思路及技术方法对其它区域的相类似油藏开发研究具有积极的借鉴意义。
[Abstract]:Daqing Saertu oil field in the west of the south of Daqing Changyuan Saltu oil field in the south, three rows from the south to the south, three rows from the south to the south, three rows from the south to the south, the oil and water boundary line in the west, and the oil and water border from the east to the Sada highway. The area of development is 8.44 km2 and the geological reserves are 5690.76 脳 104t.The seismic, drilling, logging and coring of the SaIIC-D reservoir block in the western part of the southern fourth district are carried out. Analysis and analysis of laboratory data, comprehensive evaluation of structural characteristics, oil, gas and water distribution characteristics, reservoir types, fluid properties, sedimentary characteristics, reservoir characteristics, temperature system, pressure. The physical characteristics of percolation and the comprehensive geological characteristics such as oil test and production test injection analysis are used to depict the geological body, to find out the characteristics of exploitation, to draw up the development plan, and to make clear the development principle, development mode, well pattern and well spacing of this block. Water injection mode, injection-production pressure system, reasonable pressure level and other development indicators. Obtained the following results and cognition: 1, understanding reservoir characteristics. The Gaotaizi reservoir is a unified pressure system. The average original formation pressure, the original saturation pressure, the original saturation pressure difference, the reservoir temperature, the original pressure coefficient of the reservoir and the rock compression coefficient are studied. It is determined that the reservoir type is anticlinal structure reservoir, edge water and bottom water are not active. 2. The study of reservoir characteristics, comprehensive consideration of perfect analysis and test, systematic coring data, sedimentary characteristics of reservoir minerals, pore structure. The study of reservoir characteristics, such as petrology, physical properties, etc., fully evaluates reservoir characteristics. 3, reservoir engineering design, combined with the comprehensive geological characteristics of reservoir in this area, oil test injection test production analysis and other aspects. Establish development mode, development principle, well pattern, well spacing, water injection mode, injection-production pressure system and reasonable pressure level. On the basis of the study of reservoir geological characteristics and reservoir engineering design, the reservoir enrichment area is accurately located, the rational injection-production well pattern is clearly defined, the overall arrangement is made, and the development of high quality and reasonable is realized. Prediction of development index. The data of oil test and production test in the early stage of development are analyzed and proved. Considering the different productivity on the plane, the initial production rate and decline rate of single well are reasonably determined. By studying the comprehensive geological characteristics of the reservoir and analyzing the production test injection in detail, the geological body can be described and described in detail, the characteristics of exploitation will be clearly understood, and a complete development plan will be worked out. The research ideas and technical methods can be used for reference in the development of similar reservoirs in other regions.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE34

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