延长油田白狼城油田高效注水开发研究

发布时间：2018-03-19 03:02

本文选题：白狼城区块　切入点：长2油层组　出处：《西安石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：本文以延长油田白狼城区块为对象,对该区的高效注水开发进行研究。首先对区块的基本概况进行了基本的研究,通过对该区块生产资料的分析,对区块注水开发效果进行评价,白狼城区块自2004年12月开始注水开发到现在,月产油量从起初上升趋势到现在基本保持平稳,产量趋于稳定,含水率变化幅度不是很大,注水效果开发保持良好;再以油井为中心分析各向注水受效情况,发现多向受效井主要分布于油层中部,一向受效井和无注水受效井主要分布于油藏边部,油井受效方向越多,受效程度越高,油井产量、含水受注水受效方向影响明显;根据白狼城生产资料整理得到历年注采比,结合地层压力,研究了地层压力与注采平衡对高效注水开发的影响,结果显示地层压力一直处于缓慢递增趋势,注采比基本保持平缓趋势,随着注水的开发,地层压力水平保持合理,形成注采平衡趋势,保证了白狼城油区稳产开发效果。最后,为了更好地对油田进行深度挖潜,强化油藏管理的针对性和有效性,结合对该区块的注水开发效果分析,制定出合理完善的动态监测方案,以及针对性较强的调整措施。
[Abstract]:This paper takes Bailangcheng block of Yanchang Oilfield as an object to study the development of high efficiency water injection in this area. Firstly, the basic general situation of the block is studied, and through the analysis of the production data of the block, To evaluate the effect of water injection development in block, from December 2004 to now, the monthly oil production has remained stable from the beginning to now, the output tends to be stable, and the range of water cut change is not very large. Taking the oil well as the center, it is found that the multi-directional effective wells are mainly distributed in the middle of the reservoir, and the traditional and non-water-infused wells are mainly distributed on the side of the reservoir, and the more the wells are, the more the effective directions of the wells are. The higher the efficiency degree, the more the oil well production and water cut are affected by the effective direction of water injection. According to the data of production in Bailang City, the injection-production ratio of the past years is obtained. Combined with formation pressure, the influence of formation pressure and injection-production balance on high efficiency water injection development is studied. The results show that the formation pressure has been increasing slowly and the injection-production ratio has maintained a gentle trend. With the development of water injection, the formation pressure level remains reasonable, forming the trend of injection-production balance, which ensures the stable production development effect in Bailangcheng oil area. In order to better tap the potential of the oil field and strengthen the pertinence and effectiveness of reservoir management, combining with the analysis of the water injection development effect in this block, a reasonable and perfect dynamic monitoring scheme is worked out, as well as the adjustment measures with strong pertinence.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.6

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