Patent ID: 9217301
Filing Date: 2015-12-22
Classification: E21B

Abstract:
1. An attachable collar arrangement for a down hole apparatus comprising: an annular cutaway section disposed circumferentially upon a down hole apparatus; a fluted cylindrical collar member cut into at least two sections and having at least two slots between the collar member sections, said fluted collar member rotationally insertable into the cutaway section; a stabilizing insert member sized to fit into at least one fluted collar member slot when the at least two sections of the collar member are positioned within the cutaway section; and a stabilizing insert member receptacle disposed upon the down hole apparatus, said member insert receptacle disposed underlying the fluted collar member to releasably secure the stabilizing insert member to the down hole apparatus when said stabilizing insert member is inserted into the at least one slot of the fluted collar member; and securing means attachable to the down hole apparatus, said securing means securing said collar member in position within the cutaway section; wherein said collar member is readily installable and expediently replaceable upon said down hole apparatus, whereby said down hole apparatus is protected from wear during down hole operations.