The invention relates to an anti-wear insulation
pipe nipple for electromagnetic wave
measurement while drilling. The structures of the anti-wear insulation
pipe nipple are as follows: a
pipe nipple body is taken as a center, and two ends of the pipe nipple body are symmetrically connected to a protection joint and an anti-wear joint through a
screw thread in sequence; insulation tapes with the equal width and protection tapes with the equal width and height are uniformly distributed at the middle section of the outer surface of the pipe nipple body at intervals, flexible
ceramic is sprayed on the lateral end face of a position, which is located at a junction with the
screw thread, in the pipe nipple body, the inner surface of a through hole at the center and the surface of the
screw thread; the insulation tapes take the flexible
ceramic and glass steel cloth as insulation
layers, hard
alloy teeth are embedded in the surfaces of the protection tapes, and the outer
diameter of the hard
alloy teeth is greater than the outer
diameter of the insulation tapes; the protection joint and the insulation tapes of the pipe nipple body have the same outer
diameter; the outer diameter of the surface of the anti-wear joint is greater than that of the protection tapes, the anti-wear joint is a small spiral centralizer, and the outer diameter of the surface of the anti-wear joint is smaller than that of the surface of the regular spiral centralizer. According to the structure, direct collision or friction of the pipe nipple body and a well wall can be reduced, and the repair of the insulation
layers is simpler. The anti-wear insulation pipe nipple for electromagnetic wave
measurement while drilling has the advantages of long service life and capability of reducing
well drilling cost.