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选择硫氰酸铵和硝酸钠为示踪剂，将一定浓度的示踪剂从注水井注入，在周围油井检测采出水中示踪剂浓度随时间的变化并绘制示踪剂采出曲线，通过数值分析求出油层的物性参数。利用所得到的物性参数可描述油藏，确定堵剂用量，检验油层内有无高渗透层或大孔道存在，跟踪注水流向，分析油水井注采关系，判断断层密封性等。本文介绍了这两种示踪剂的室内研究，在胜利油田胜坨地区沙二３、坨七两个开发单元的应用及其分析。
Select ammonium thiocyanate and sodium nitrate as tracer, a certain concentration of tracer injection from the injection wells, wells around the oil in the detection of tracer concentration changes with time and trace tracer mining curve, through Numerical analysis of the physical properties of the reservoir parameters. Using the obtained physical property parameters, the reservoir can be described, the dosage of plugging agent can be determined, the existence of high permeability layer or large pores in the oil layer can be tested, the flow direction of water injection can be tracked, the relationship between injection and production of oil and water wells can be analyzed, and the fault sealing can be judged. This article describes the indoor studies of these two tracers, and their application in the development of Sha 2 3 and Tuo 7 in Shengtou Oilfield.