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钻井液中混有的柴油、改性沥青等含荧光成分的处理剂,给地质钻屑荧光录井分辨带来一定困难。YZ-1型石油荧光分析仪是通过分析原油、柴油和改性沥青的荧光光谱差异而研制成功的。应用该仪器对辛47-28、辛47-35井和冀海1×1探井的岩样进行了荧光分析。结果表明,在没有改性沥青污染的情况下,或改性沥青钻井液的污染低于20mg/L时,YZ-1型石油荧光分析仪可以直接测定钻屑的荧光级別;当污染高于20mg/L时,用荧光强度差减法可以消除钻井液污染造成的那部分荧光干扰;使用YZ-1型石油荧光分析仪的测定结果与地化结果和地质检测结果基本吻合。
Drilling fluid mixed with diesel, modified bitumen and other fluorescence-containing components of the processing agent, to geological drilling Fluorescence logging resolution to bring some difficulties. Model YZ-1 petroleum fluorescence analyzer is developed by analyzing the difference of fluorescence spectra of crude oil, diesel oil and modified asphalt. The rock samples from Xin 47-28, Xin 47-35 wells and Jihai 1 × 1 exploration wells were analyzed by using this instrument. The results show that YZ-1 oil fluorescence analyzer can directly measure the fluorescence level of drill cuttings in the absence of modified asphalt pollution or when the pollution of drilling fluid of modified asphalt is less than 20mg / L. When the pollution is higher than At 20mg / L, the fluorescence intensity difference subtraction method can eliminate the part of fluorescence interference caused by drilling fluid pollution. The results of YZ-1 petroleum fluorescence analyzer are in good agreement with the geochemical results and geological testing results.