示踪剂

• The development of this field in china was started in late 1980s . in 1988 , china institute of atomic energy in cooperation with daqing oil company conducted the first test using tritiated water as tracer for waterflood , opened the curtain of interwell radiotracer test in china
  八十年代末期，中国原子能科学中国原于能科学研究院博士学位论文研究院与大庆油田合作，利用氖水作为示踪剂在国内首先开展了放射性井间示踪测试。
• In this paper the injection dispersion in an oscillatory flow mixer has been studied by using the flow visualization technique with a solution of blue dye as the tracer . the process of injection dispersion was monitored with a digital camera connecting to a computer that treated the video data stream synchronously to obtain the attenuation curve of relative deviation of the flow image ' s gray scale values
  实验采用以蓝色有机染料为示踪剂的流动显形技术，由摄像头实时摄取注入分散过程的动态图像，计算机同步分析视频流数据，从而以在线监测的方式获得流场图像的灰度相对方差随时间衰减的曲线。
• The global change study is one of the most spectacular and interesting environment scientific questions in the 1990 s . the message of global change stores in tree rings , ice core , loess , underground water , lake sediment and deep sea sediment , all these proxies record the information of global change . with the advances in stable isotope techniques , the isotopic tracer records the message of climatic variation and becomes a powerful tool that can understand paleoenvironment reconstruction and modern environment changing
  全球变化研究是90年代以来最为引人注目和关切的环境科学问题之一。全球环境变化的信息储存于树轮湖泊冰芯黄土地下水和海洋沉积物等载体中，随着稳定同位素技术的发展，同位素示踪剂指示环境变化的信息，成为了解古环境再造和现代环境信息变化的一个强有力的工具。
• The basic procedure of an interwell radiotracer test is , to inject a proper radioisotope tagged tracer material into the injector together with the injected fluid ; the tracer material will follow the injected fluid and go through the same path of injection fluid penetrating the formation ; finally the tracer material will be produced at the producer ; then , collecting samples at well head of producer , tracer response can be observed ; by analyzing the response of tracer , the information on dynamics of injection fluid and reservoir geology can be obtained
  放射性井间示踪测试的基本过程是：将一定量合适的放射性示踪剂介入注入流体，使其通过注入井进入地层并跟随注入流体穿越地层，最后被采油井采出；通过跟踪监测示踪剂在采油井上的响应，获得注水井-采油井之间流体和地层的信息。
• The obvious effects have been made in the adjustment of injection to - producing and water blocking by applying comprehensively the log information of degree of saturation and profile - log and tracer survey information to tap the zone of enrichment of remaining oil potential , analyze the direction of injected water streamline and guide the measures for tapping potential in tuo 7 fault block
  摘要总结了坨七断块综合应用饱和度测井资料、吸水剖面资料、水井注示踪剂资料，发掘剩余油潜力富集带、分析注水流线方向，指导油井措施挖潜、注采调整和堵水调剖工作所取得的明显效果。
• In this paper . flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied . according to characteristic analysis , the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model . on the basis of analog computing analysis and discussion of theoretical model . by means of pulse tracer method , experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level , feeding flow rate and circulation flow rate . the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4 , the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series . an amendatory model has been established by the regression method
  作者首先在对反应器进行特征分析的基础上，建立了描述中试规模多级外循环流化床生物反应器流动特性的串级全混流模型，并对理论模型进行了模拟计算分析和讨论，在此基础上，作者分别在无循环和有循环(改变示踪剂用量、流加流量和循环流量)的条件下，利用脉冲示踪法对一到五级串联外循环流化床反应器进行了停留时间分布实验，结果表明，在循环流量与流加流量的比值达到大于等于4时，中试规模多级外循环流化床反应器的流动特性接近串级全混流模型，通过数据回归拟合的方法，建立了中试规模一到五级串联外循环流化床反应器的流动模型。
• New tracers and their analysis methods , new developments on the interpretation of tracer response and new concepts & methods contributed on tracer methodology . since 1980s , interwell radiotracer test has gained rapid development . the main reasons are radiotracers has the advancetages of high sensitivity , wide selectivity and no chemical contamination on the reservoir
  自上世纪八十年代以来，放射性井间示踪测试在国际上得到了很大的发展，主要是因为放射性示踪剂具有种类多、检测灵敏度高、并且对油藏不产生化学污染等优点。
• Main point of sdt is : when an interwell tracer test is conducting , the short - term changes of injection and / or production rates of the wells involved can generate abnormal tracer responses at the wells where tracer is already in producing ; by analyzing the abnormal responses , information on flows produced at the production well from different directions can be obtained
  造成采油井上示踪剂响应的突变，据此评价采油井中不同方向k来水之问的关系。在传统的井间示踪测试中使用微扰法，可以更快地获得测试结果并且还可以获得其它方向水流的信息。