发明名称 ELECTROMAGNETIC WAVE RESISTIVITY TOOL HAVING TILTED ANTENNA
摘要 This invention is directed to a downhole method and apparatus for simultaneously determining the horizontal resistivity, vertical resistivity, and relative dip angle for anisotropic earth formations. The present inventi on accomplishes this objective by using an antenna configuration in which a transmitter antenna (T1) and a receiver antenna (R1) are oriented in non- parallel planes such that the vertical resistivity and the relative dip angl e are decoupled. Preferably, either the transmitter or the receiver is mounted in a conventional orientation in a first plane that is normal to the tool axis, and the other antenna is mounted in a second plane that is not paralle l to the first plane. Although this invention is primarily intended for MWD or LWD applications, this invention is also applicable to wireline applications .
申请公布号 CA2359371(A1) 申请公布日期 2000.08.03
申请号 CA20002359371 申请日期 2000.01.24
申请人 DRESSER INDUSTRIES, INC. 发明人 BITTAR, MICHAEL S.
分类号 G01V3/28;(IPC1-7):G01V3/26;G01V3/30;G01V3/38 主分类号 G01V3/28
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