孤东二区Ng^5细分变流线井网调整技术研究  

Adjustment Technology of Well Pattern in Gudong No.2 Block Ng^5 Based on Segmentation Variable Streamline Method

作　　者：高聚同[1] 

机构地区：[1]中国石化胜利油田分公司孤东采油厂,山东东营257237

出　　处：《西南石油大学学报（自然科学版）》2015年第3期122-128,共7页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家科技重大专项(2011ZX05013006)

摘　　要：针对孤东二区开发单元2011年转入后续水驱后存在的套损事故井多造成局部井网不完善、储量失控大;合采合注井多,层间矛盾突出;一套井网开发,井网形式相对固定,平面层间剩余油得不到有效动用,单元目前采收率低(35.5%)等问题,开展了孤东二区Ng^5细分变流线井网调整技术研究,通过层系细分、老井改层以及新井调整井网、转变流线,利用建模数模一体化技术研究剩余油的分布,表明目前排间分流线、油井之间剩余油仍较富集,具备进一步提高粟收率的潜力。In view of No.2 Block Ng5 adopted water flooding after 2011 in the later development period,which brought many problems,including the well casing damage resulted in imperfect well pattern and large reserves out of control,prominent interlayer contradictions,relatively fixed well pattern,ineffective exploitation of plane interlayer remaining oil,low oil recovery and so on. Therefore,in the study area we to implement segmentation variable flow pattern adjustment. In the study,we can adjust well pattern and transform streamline by subdivision of strata,modifying layer of old wells and drilling new wells. According to study the remaining oil by modeling and numerical simulation technology,we find the remaining oil in the shunt line and between the oil wells is still adequate and has further potential to improve oil recovery.

关 键 词：层间矛盾 剩余油 变流线 井网调整 建模数模 

分 类 号：TE341[石油与天然气工程—油气田开发工程]