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    • 3. 发明授权
    • Method and apparatus for insulating electrical devices in a logging
sonde using a fluorinated organic compound
    • 使用氟化有机化合物在测井仪中绝缘电气设备的方法和装置
    • US5132624A
    • 1992-07-21
    • US626341
    • 1990-12-12
    • David Kitson
    • David Kitson
    • E21B17/02E21B47/01G01V3/18G01V3/28
    • E21B17/028E21B47/011G01V3/18G01V3/28
    • A method for providing electrical insulation to electrical devices (e.g. connectors) disposed at the end of the housing of a logging sonde designed to be lowered in a borehole traversing earth formation, wherein the housing is at least partly filled in with an insulating fluid having a density greater than the borehole fluid density. Advantageously, the insulating fluid density is greater than the density of water. Preferably, the housing is filled with a mix of insulating oil and hydraulic oil having a density less than the insulating oil density. The amount of insulating fluid is such that it covers the electrical devices when the sonde is substantially in the upright position. The insulating fluid is e.g. made of a fluorinated organic compound, such as the oil sold under the name Fluorinert.RTM. (trademark of 3M).
    • 一种用于向被设计成在穿过地层的钻孔中降低的测井仪的壳体的端部处的电气设备(例如,连接器)提供电绝缘的方法,其中所述壳体至少部分地填充有绝缘流体,所述绝缘流体具有 密度大于井眼流体密度。 有利地,绝缘流体密度大于水的密度。 优选地,壳体填充有密度小于绝缘油密度的绝缘油和液压油的混合物。 绝缘流体的量使得当探头基本上处于直立位置时它覆盖电气装置。 绝缘流体是例如。 由氟化有机化合物制成,例如以Fluorinert TM(3M的商标)销售的油。