Patent ID: 8072221

Claim:
A tool for measuring the resistivity of a formation adjacent a well bore, the tool comprising: a downhole component configured to be conveyed into the well bore, the downhole component being substantially cylindrical with a longitudinal axis and an outer wall having an outer surface at a first radial distance from the longitudinal axis; at least one induction transmitter assembly disposed proximate the outer surface, the transmitter assembly comprising at least one transmitter coil wound about at least one transmitter core, the transmitter assembly being configured to project an induction signal outward and into at least a portion of the formation adjacent the wellbore when the transmitter coil is carrying an electrical current; and at least one induction receiver assembly disposed proximate the outer surface and spaced an axial distance from the transmitter assembly, the receiver assembly being configured to receive a return induction signal representative of the portion of the formation, the receiver assembly comprising at least two rows of receiver coils, each receiver coil being wound around at least one receiver core and having a coil axis aligned with a centerline of the receiver core, and with the coil axes of the receiver coils in one row being substantially orthogonally oriented to the coil axes of receiver coils in the other row.