海上特高含水期油藏提液增油方案设计研究  

Study on the engineering design of liquid extraction for oil production increasein offshore ultra-high water-cut reservoirs

作　　者：路颖 宋刚祥 马恋 石美雪 LU Ying;SONG Gangxiang;MA Lian;SHI Meixue(CNOOC China Ltd.,Shanghai Branch,Shanghai,200030,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200030

出　　处：《天然气与石油》2023年第5期50-54,共5页Natural Gas and Oil

基　　金：国家科技重大专项“东海厚层非均质性大型气田有效开发关键技术”(2016ZX05027-004)。

摘　　要：海上P油田目前已进入开发中后期,为更好发挥特高含水期油藏提液增油措施效果,以单井生产动态数据为基础,通过多参数自动优化拟合,开展无因次采液指数变化规律研究,形成了P油田广适水驱曲线特征公式,提出了以单井全寿命生产动态为基础筛选提液井、判断提液时机、确定提液幅度、产液结构调整的方法。应用产液结构调整方法制定的P油田提液增油方案进行了6口井提液生产,均取得了良好效果。现场实践表明,产液结构调整方法成本低、收益高,能为海上同类特高含水期油藏提高采收率提供借鉴经验。In order to give full play to the effect of the measures of increasing liquid and oil production in the ultra-high water cut period,the characteristic formula of the eurytopic water-drive curve of P oilfield was formed based on the production dynamic data of single well in offshore P oilfield and the change law of dimensionless liquid production index was studied.The method of determining the timing of increasing liquid and determining the extent of increasing liquid was proposed based on the production dynamic of single well in the whole life.Good results have been achieved in 6 Wells of P oilfield with the increasing oil production plan formulated by this method.This method provides reference for enhancing recovery rate of offshore ultra-high water-cut reservoirs.

关 键 词：单井提液 广适水驱理论 开发规律 特高含水期 

分 类 号：TE53[石油与天然气工程—油气田开发工程]