摘要
为了解渤海A油田I1井组注采井间动态连通关系、储层非均质性及整体水驱效果,优选水溶性有机微量物质示踪剂WT-07,对该井实施了为期1.5a的井间示踪剂监测。对各个监测井产出油水样中的示踪剂浓度进行了分析,结合生产动态数据,利用停留时间分布分析法计算了各井井间波及体积、平均停留时间以及洛伦兹系数等参数。结果表明,受益井P1井间波及体积53671m^(3),平均停留时间101d,洛伦兹系数0.17;P2井间波及体积102751m^(3),平均停留时间168d,洛伦兹系数0.24;P3井间波及体积9232m^(3),平均停留时间80d,洛伦兹系数0.39。P1、P2井与I1井间水窜通道接近均质储层,而P3井与I1井间水窜通道非均质性较强,该井组P2井水驱效果最好,P1井次之,P3井最差。本次应用研究为停留时间分布分析法在井间示踪剂结果解释中的进一步推广奠定了基础。
To understand the inter-well dynamic connectivity,heterogeneity of reservoir and overall water flooding effect of pattern I1,A oilfield,Bohai Oilfield,tracer element organic tracer TW-07 was selected to implement IWTT(inter-well tracer test)on this pattern for an interval of 1.5years.The concentration of tracer in each adjacent producers are analyzed,combined with dynamic production data,the inter-well swept pore volume,MRT(mean residence time)and Lc(Lorentz coefficient)of producers were carried out by means of RTD(residence time distribution)method.Results show that for P1,the inter-well swept pore volume was 53671m^(3),the MRT is 101days,the lc is 0.17;for P2,the inter-well swept pore volume was 102751m^(3),the MRT is 168days,the lc is 0.24;for P3,the inter-well swept pore volume was 9232m^(3),the MRT is 80days,the Lc is 0.39.Further understood that the inter-well water channel of P1and P2is nearly homogeneous,of P3is heterogeneous,while the water flooding effect of P2is the best,of P1is medium,of P3is the worst of this pattern.This application laid the foundation for further promotion of RTD method in tracer result interpretation.
作者
谢诗章
温守国
王跃宽
联翩
石晓博
曹新
XIE Shi-zhang;WEN Shou-guo;WANG Yue-kuan;LIAN Pian;SHI Xiao-bo;CAO Xin(CNOOC EnerTech-Drilling&Production Co.,Tianjin 300452,China)
出处
《精细与专用化学品》
CAS
2022年第4期23-27,共5页
Fine and Specialty Chemicals
基金
中海油发展科技重大专项“高含凝析油气藏储层伤害评价及增产技术可行性研究”(HFZDZX-GJ2020-01-06)。
关键词
示踪剂
停留时间分布
水驱
井间监测
tracer
residence time distribution
water flooding
inter-well monitoring
