Height adjustable inspection shoes, apparatus and methods for inspecting tubulars

A tubular member EMI apparatus comprising:

• (a) at least one magnetic flux generator (104) contained in a coil annulus (108) and a detector assembly (106) supported by the coil annulus (108);
• (b) the coil annulus (108) and the detector assembly (106) each having inlet and outlet openings (110, 112) for passing a tubular member (2) there through, the detector assembly (106) having one or more magnetic detectors (116) (magnetic, eddy current, or both) configured to be spaced a first distance from the tubular member (2) during an inspection;
• and
• (c) the one or more magnetic detectors (116) each contained in one or more EMI detector shoes (30), the one or more EMI detector shoes (30) comprising:
• (i) a generally arcuate body (2) having a non-working major face (16), a working major face (17), a trough (4) configured to hold one or more sensor coils embedded in a potting material (34), and at least one through hole (14) for mechanical connection of the EMI detector shoes (30) to the EMI apparatus;
• (ii) the generally arcuate body (2) including at least one non-central through hole (6, 8, 42, 46) in which are positioned respective externally threaded cylindrically-shaped set screws (10, 12, 40, 44), each of the at least one non-central through holes (6, 8, 42, 46) having a wear-resistant friction member (18, 20, 30, 32) movably secured therein and positioned such that a distal portion of each wear-resistant friction member (18, 20, 30, 32) protrudes away from the major working face (17) an initial distance (d1) and configured to wear down over time to a generally arcuate surface that is a distance d2 from the major working face (17), where d2<d1, forming worn friction members (18A, 20A, 30A, 32A), the adjustable externally threaded cylindrically-shaped set screws (10, 12, 40, 44) configured to be advanced further into the generally arcuate body (2) and thus advance the generally arcuate surface (21) to a distance d3, where d1≥d3>d2.