萨中开发区中区东部萨葡高三类油层加密调整方案研究

发布时间：2018-03-04 21:25

本文选题：三类油层　切入点：剩余油　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：萨中开发区中区东部、东区地处主城区,油田和市政建筑密集,目前城市设施、生产设施等已占地67%,其余的33%都为零散空地,随着城市的发展,城市建设将会越来越多,油田钻、建空间也会越来越小,难度越来越大的地面现状。按照二次开发“整体研究,统一部署”的极限井网模式,与本区块二类油层三次采油方案同步编制,同时钻建,一次到位,避免后期钻建用地紧张问题。采取“整体研究、统一部署、细分层系、缩小井距”重构三次采油井网,利用三次采油井网先期水驱加密调整挖潜,强化三次采油前的水驱二次开发,减缓水驱产量递减速度,保持水驱产量规模,改善水驱开发效果,提高水驱采收率,然后在适当时机转入三次采油,提高油田最终采收率的技术思路编制油藏工程方案,在精细油藏描述基础上,对中区东部、东区萨葡高油层储层特征、原油储量、现井网动用状况及剩余油潜力进行了系统研究,部署了注采井106m五点法面积开发井网,设计总井数1113口,采油井577口,注水井536口。新钻井951口,采油井529口,注水井422口;利用井162口。优化了层段组合,初步设计了注入方案,预测了中区东部、东区萨葡高三类油层开发指标及增储潜力,预测初期平均单井日产液33.6t,日产油3.0t,综合含水91.0%,建成产能47.6×104t。
[Abstract]:The eastern part of Sazhong Development Zone is located in the main urban area. The oil fields and municipal buildings are dense. At present, urban facilities and production facilities have occupied an area of 67. The rest 33% are scattered open spaces. With the development of the city, urban construction will become more and more. According to the limit well pattern pattern of "overall research, unified deployment" of secondary development, it is synchronized with the tertiary oil recovery scheme of the second class oil reservoir in this block and drilled at the same time. Adopt "whole research, unified deployment, subdivide layer system, reduce well distance" to reconstruct the third production well network, and use the third production well network to adjust and adjust the potential by water drive infilling in advance, in order to avoid the problem of shortage of land for drilling and construction in the later stage. To strengthen the secondary development of water drive before tertiary oil recovery, to slow down the decline of water drive production, to maintain the scale of water drive production, to improve the effect of water drive development, to increase water drive recovery, and then to transfer to tertiary oil recovery at the appropriate time. On the basis of fine reservoir description, the reservoir characteristics and oil reserves of Sapu high reservoir in the eastern and eastern parts of the central area are analyzed. The production status and potential of remaining oil in the present well pattern have been systematically studied, and 106m five-point development well pattern has been deployed. The total number of wells is 1113, 577 wells, 536 injection wells, 951 new drilling wells, 529 production wells and 422 injection wells are designed. Using 162 wells, the formation combination is optimized, the injection scheme is preliminarily designed, the development index and reservoir increasing potential of three types of reservoirs in the eastern and eastern regions of Sapugao are forecasted, the average daily production of single well is 33.6 t, the daily oil production is 3.0 t, the comprehensive water cut is 91.0 t, and the production capacity is 47.6 脳 104 t.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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