Resistivity receiver spacing

Details Resistivity receiver spacing Resistivity receiver spacing

2011-08-09

2011-08-09

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

Reexamination Certificate

active

07994791

ABSTRACT:
A downhole induction resistivity assembly that comprises a downhole tool string component. The tool string component comprises an induction transmitter. The transmitter is adapted to induce an induction field in the surrounding formation. A first induction receiver is spaced apart from the transmitter and is adapted to measure the induction field. A magnetic field generating mechanism is disposed adjacent on either or both sides of the transmitter and adapted to guide the transmitter's signal into the formation. A second induction receiver is disposed in close proximity to the magnetic field generating mechanism and is adapted to measure the magnetic field generated by the mechanism.

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