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硫氰酸铵在许多油田已作为注水示踪剂注入油田，不能再用于密闭取心。碘化钾则由于地层含碘也不能使用。筛选出了可供大直径及密闭取心用的4种新示踪剂，其中SL-D2效果最好。本文报道了胜索坨油田油层含碘量分析结果，4种新示踪剂的检测方法及性能评价实验结果。
Ammonium thiocyanate has been injected into fields in many fields as a water injection tracer and can no longer be used for closed coring. Potassium iodide can not be used because of iodine in the formation. Four new tracers for large diameter and closed coring were screened, of which SL-D2 was the best. This paper reports the analysis results of the iodine content of Shengsuo Tuo oilfield, the detection methods of four new tracers and the experimental results of performance evaluation.