Electromagnetic wave logging tool coil supporting and pulling device
A technology of well logging instrument and coil system, which is applied in electric/magnetic detection for well logging records, wellbore/well components, earthwork drilling and production, etc. It can solve the problem of increasing the cost of electromagnetic wave logging instruments and the structure of well logging instruments Complicated, inconvenient handling and disassembly, etc., to achieve the effect of not affecting the sensing area, saving manufacturing costs, and facilitating handling and disassembly
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[0023] exist figure 1 In one embodiment of the present invention shown in , it also includes an outer tapered sleeve 4 matched with the inner tapered sleeve 3 , and the outer tapered sleeve 4 is arranged between the end of the bobbin 2 and the inner tapered sleeve 3 . The outer surface of the inner tapered sleeve 3 is a tapered surface, and the tapered surface is formed as a tapered surface whose outer diameter gradually decreases outward along the end of the inner tapered sleeve 3 close to the inner end of the inner hole at the end of the bobbin 2 . The inner surface of the outer tapered sleeve 4 is a tapered surface, and the tapered surface is a tapered surface whose inner diameter gradually decreases outwards along the end close to the inner end of the inner hole at the end of the bobbin 2 . The inner tapered sleeve 3 cooperates with the outer tapered sleeve 4 to form an inner metal ring, and extends into the inner hole of one end (first end) of the coil frame 2, so that th...
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