摘要
注示踪剂及其检测技术，是从注水井注入一定浓度的示踪剂，在周围油井检测示踪剂浓度随时间的变化情况，绘出示踪剂产出曲线，并对该曲线进行数值分析，得到有关地层的物性参数，用以描述油藏、确定堵剂用量、检验油层有无高渗透层或大孔道存在、跟踪注水流向、分析油水井注采状况和判断断层密封性等，为制定合理有效的开发措施提供依据。本文着重介绍了示踪剂的室内研究及在胜二区沙二３、坨７、胜二区８３～５和坨１１南四个开发单元的应用与分析。
racer monitoring technique is to inject a certain content of tracer from a water injector andto monitor the variation of tracer concentration with time in surrounding oil wells.The tracerproduction curve is plotted and analysed to obtain reservoir properties.These parameters can beused in reservoir description,determination of the volume of plugging agent,detecting theexistence of high permeable formation or large proe paths in oil reservoir,tracing the flowdirection of the injected water,analysing the injection and production status of oil and waterwells,determining the sealing property of the faults and so on,thereby providing bases for thereasonable determination of effective development measures.This paper stresses the lab study oftracer and its application in 4 development units including the 3rd submember of the 2nd memberof Shahejie Formation,block Sheng 2;block Tuo 7; the 3rd 5th layers in the 8th submemberof the 2nd member of Shahejie Formation,block Sheng 2;and the south of block Tuo 14
关键词
示踪剂
硫氰酸铵
硝酸铵
检测技术
注水井
油井
racer,production curve of tracer,NH4SCN,NH4NO3,large pore path,channelling,sealing property of fault.
