几种新的水基泥浆密闭取心示踪剂

FOUR NOVEL CHEMICAL TRACERS FOR WATER BASE MUD USED IN SEALING CORE

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。

In Gudao, Gudong and Shengtuo Oil Fields of Shengli ammonium thiocyanate can not be used nowadays as mud tracer for sealing core drilling owing to using it as injection water tracer, and neither iodides because of the existance of iodine in the reservoir strata, as showm in this paper. Four organic compounds are suggested for this Pinstead. The spectrophotometric determiations of these chemicals are Presented and their performance properties are evaluated: thermal stability; mutual influences of tracers and mud upon each other; adsorptive and diffusivebehavior, and usages.