APPARATUS AND METHOD FOR MITIGATING WEAR IN DOWNHOLE TOOLS

摘要

A down hole tool (4) has a gauge (5) that has a surface strengthened by a super hard material (6). The super hard material (6) is fixed to the surface of the down hole tool (4), at least temporarily prior to spray fusing. This is achieved by the use of a high temperature adhesive. The super hard material (6) may also be combined with an electrically conductive component and welded on to the down hole tool (4) surface thereafter. The super hard material may also be held in place by a mesh framework, which is fixed to the surface of the tool (4). A binding material is then spray fused around the super hard material (6) to provide a permanent binding medium for the super hard material (6) to the surface of the down hole tool (4).