发明名称 SYSTEM AND METHOD FOR PRODUCING A CONDUCTIVITY LOG UNAFFECTED BY SHOULDER EFFECT AND DIP FROM DATA DEVELOPED BY A WELL TOOL
摘要 A system and method for producing a conductivity log, unaffected by shoulder effect and dip, from voltage data developed by a well tool (205) disposed in a borehole. The method involves accessing the voltage data developed by the tool, processing the data, reconstructing two-coil voltage data, and computing differences of the two-coil data, to derive a conductivity profile representative of the formation. A system including a well tool adapted to move through a borehole with an apparatus (210) coupled to the tool. The apparatus adapted with means to access voltage data developed by the receivers disposed on the well tool. Th e apparatus further adapted with means for boosting the voltage data, means for reconstructing t wo- coil voltages from the boosted voltage data, means for processing the reconstructed two-co il voltage data, and means for producing a conductivity log from the processed two-coil voltages.
申请公布号 CA2316596(C) 申请公布日期 2002.07.02
申请号 CA20002316596 申请日期 2000.08.22
申请人 SCHLUMBERGER CANADA LIMITED 发明人 MINERBO, GERALD N.
分类号 G01V3/28;G01V3/38;(IPC1-7):G01V3/18;G01V3/30 主分类号 G01V3/28
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