2006•Natural Gas Exploration and DevelopmentRequires access
WELL-LOGGING SELECTION AND WELL-LOGGING INTERPRETATION UNDER THE CONDITION OF GASEOUS MEDIA
Xuquan He, Cnpc Sichuan
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Abstract
Well-logging under the condition of gaseous media is just a well-logging measure under the circumstance of nitrogen(natural gas)within the well.This paper considers after an analysis that caliper logging,gamma-ray logging(spectral gamma-ray logging),induction logging,temperature logging and NMR logging belong to effective well logging under the condition of gaseous medium.Lithology may be determined by gammy ray.And then,permeable intervals can be confirmed by the lithology and the difference in induction curves.In addition,gas-producing intervals can be determined by well temperature curves.As a result,all the above-mentioned provide a firm basis for well-logging selection and well-logging interpretation under the condition of gaseous media.