Magnetic susceptibility logging apparatus for distinguishing ferromagnetic materials
    6.
    发明授权
    Magnetic susceptibility logging apparatus for distinguishing ferromagnetic materials 失效
    用于区分铁磁材料的磁化率测井装置

    公开(公告)号:US3890563A

    公开(公告)日:1975-06-17

    申请号:US40920373

    申请日:1973-10-24

    Applicant: TEXACO INC

    CPC classification number: G01V3/28

    Abstract: Magnetic susceptibility bore hole logging method for distinguishing ferromagnetic materials from the paramagnetic materials. It involves logging the bore hole with and without a unidirectional magnetic field being applied to the formations being logged. The differences between these logs indicate ferromagnetic materials if the field strength is sufficient to cause saturation. Apparatus employs a permanent magnet or an electromagnet for creating the saturating field.

    Abstract translation: 用于区分铁磁材料与顺磁材料的磁化率钻孔测井方法。 它包括记录钻孔,并且不存在将单向磁场施加到被记录的地层。 如果场强足以引起饱和,则这些日志之间的差异表示铁磁材料。 装置采用永久磁铁或电磁铁来产生饱和场。

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