补偿中子测井的统计分析  

Statistical Analysis of Compensated Neutrol Log

作　　者：查传钰[1] 金振武[1] 

机构地区：[1]江汉石油学院

出　　处：《地球物理测井》1989年第3期10-14,36,共6页

摘　　要：补偿中子测井是用于裸眼井或套管井中确定地层孔隙度的一种常规测井方法。目前该方法在现场应用十分广泛,而应用效果的好坏关键在于孔隙度的测量精度。本文详细地讨论了补偿中子测井仪的灵敏度、统计噪音、信噪比及孔隙度分辨率。通过理论分析指出了改善仪器测量精度的方法和途径。Compensated neotron logging is a conventional method for determining theformation porosity in both open holes and cased holes. At present, it is widelyused in the oilfields but the effects depend on the measuring accuracy. Thispaper discusses in detail the sensitivity, statistical noise, signal-noise ratioand porosity resolution of the compensated neutron logging instrument. Onthe basis of theoretical analysis, it is pointed out how to improve the measu-ring accuracy of the instrument.

关 键 词：补偿中子测井 测井 统计分析 

分 类 号：P631.817[天文地球—地质矿产勘探]