Inductor devices – With electric and/or magnetic shielding means
Reexamination Certificate
2007-09-04
2007-09-04
Nguyen, Tuyen T. (Department: 2832)
Inductor devices
With electric and/or magnetic shielding means
Reexamination Certificate
active
11676494
ABSTRACT:
In one aspects of the present invention, an induction resistivity tool incorporated into a downhole tool string comprises a downhole tool string component comprising a mid-body intermediate first and second tool joints adapted for connection to adjacent tool string components. The mid-body comprises a central bore formed within a tubular wall of the component, the tubular wall comprising an inner and outer diameter. At least one annular radial recess is formed in the outer diameter of the mid-body and comprises a coil adapted to transceive induction signals outwardly from the mid-body, and at least one flexible ring of magnetically conducting material is disposed intermediate the coil and a surface of the recess and arranged within the annular radial recess such that it filters a range of frequencies of the induction signals.
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Durrand Christopher
Fox Joe
Hall David R.
Turner Paula
Wilde Tyson J.
Nguyen Tuyen T.
Wilde Tyson J.
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