水驱特征曲线在低渗透油藏开发中的应用  

Application of Waterflooding Characteristic Curve in the Development of Low-Permeability Oil Reservoir

作　　者：王柏力 冯乔 江海英[2] 孙秋分 戴传瑞 Wang Baili;Feng Qiao;Jiang Haiying;Sun Qiufen;Dai Chuanrui(PetroChina Hangzhou Institute of Geology,Hangzhou,Zhejiang 310000,China;PetroChina Jilin Oilfield Company,Songyuan,Jilin 138000,China)

机构地区：[1]中国石油杭州地质研究院,浙江杭州310000 [2]中国石油吉林油田分公司,吉林松原138000

出　　处：《特种油气藏》2019年第6期82-87,共6页Special Oil & Gas Reservoirs

基　　金：中国石油天然气股份有限公司重大科技专项“SEC准则油气储量评估方法与关键技术”(KT2017-1102)

摘　　要：低渗透油藏开发储量占比较大,但现有含水率预测与采出程度的计算方法适用于中、高渗透油藏,一般不适合低渗透油藏。针对该问题,在中国石油建立的低渗透类比油藏序列中,筛选出具有代表性的30个油藏作为研究对象,运用丁型水驱特征曲线公式,采用数理统计和理论推导的方法,得到低渗透油藏含水率与采出程度关系图版。研究结果表明:新图版符合低渗透油藏水驱开发规律,经实践验证图版实用可靠,能够有效预测低渗透油藏含水率、采收率等开发指标。该研究对低渗透油藏的开发具有一定的指导意义。The producing reserve of low-permeability oil reservoirs accounts for a large proportion,and the available methods for water-cut prediction and recovery degree calculation are applicable to medium and high permeability reservoirs rather than low-permeability reservoir.A total of 30 typical reservoirs is taken from the low-permeability reservoir sequence of PetroChina to study this problem.Based on the D-type waterflooding characteristic curve formula,the mathematical statistics and theoretical derivation were adopted to gain the relationship plate between water-cut and recovery degree for low-permeability oil reservoir.Result shows that the new plate is consistent with the waterflooding development performance of low-permeability reservoir.The water-cut,recovery factor and other parameters for the low-permeability reservoir can be predicted by this reliable and practical new plate after practice verification.This research could provide certain guidance for the low-permeability reservoir development.

关 键 词：低渗透油藏 水驱特征曲线 关系图版 含水率 采出程度 水驱规律 

分 类 号：TE348[石油与天然气工程—油气田开发工程]