XM区块剩余油分布规律及挖潜措施研究

发布时间：2018-04-29 03:00

本文选题：断块油藏 + 剩余油分布　；参考：《东北石油大学》2017年硕士论文

【摘要】：XM区块,是一个受多条断裂切割形成的复杂断块油藏,工区构造复杂,油田产能受构造特征、沉积微相变化、砂体的空间展布及物性变化等方面的影响较大,现有井网控制程度低,开发效果较差。XM区块的综合系统研究工作相对比较薄弱,在开发过程中虽然积累了部分基础资料,但也没有得到很好的系统应用。油田开发至今,在多方面存在需要解决的问题。注采井网有待于进一步完善。低效井数逐渐增多,产量递减较快,动态监测资料少,沉积相、地层、岩性、构造及断层发育状况需进一步落实。通过精细油藏描述,可以了解油藏的构造、沉积、储层发育特征,研究其对油气聚集、生产特征的影响,重新复算储量及含油面积,分析评价开发效果,结合数值模拟研究,深入认识目前剩余油分布,研究注采系统对应关系,为及时调整方案部署,制定合理开发政策,减缓油田递减,提高油藏开发效果提供科学依据。应用油藏工程分析方法对XM区块的含水上升规律、注水效果、井网适应性、可采储量、措施效果等开发效果进行评价;应用数值模拟方法,对该井区剩余油类型及数值进行分析,依据油藏评价及剩余油分析结果,提出补孔、压裂、转注、加密等调整措施,进行方案部署优选。确定井网加密方案为下一步调整方案,并计算出未来15年生产时间内可提高的采出程度及采油速度。
[Abstract]:XM block is a complex fault block reservoir formed by multiple faults. The structure of the work area is complicated, and the productivity of the oil field is greatly affected by the structural characteristics, the changes of sedimentary microfacies, the spatial distribution of sand bodies and the change of physical properties, etc. The existing well pattern control degree is low, the development effect is poor. XM block comprehensive system research work is relatively weak, although has accumulated some basic data in the development process, but also has not obtained the very good system application. Up to now, there are many problems to be solved in oilfield development. The injection-production well pattern needs to be further improved. The number of low efficiency wells increases gradually, the production decreases rapidly, the dynamic monitoring data are less, sedimentary facies, formation, lithology, structure and fault development need to be further implemented. Through fine reservoir description, we can understand the structure, deposition and reservoir development characteristics of the reservoir, study its influence on oil and gas accumulation and production characteristics, recalculate reserves and oil-bearing area, analyze and evaluate the development effect, and combine the numerical simulation study. By deeply understanding the distribution of remaining oil and studying the corresponding relation of injection-production system, this paper provides a scientific basis for adjusting the plan in time, formulating reasonable development policy, slowing down the decline of oil field and improving reservoir development effect. Reservoir engineering analysis method is used to evaluate the water cut rising rule, water injection effect, well pattern adaptability, recoverable reserves and measure effect of XM block, and numerical simulation method is used. The types and values of remaining oil in this well area are analyzed. According to the results of reservoir evaluation and residual oil analysis, some adjustment measures, such as filling hole, fracturing, transferring injection and infilling, are put forward to optimize the scheme deployment. The infilling scheme of well pattern is determined as the next adjustment scheme, and the recovery degree and oil recovery speed that can be improved in the next 15 years are calculated.
【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

【参考文献】