DOWNHOLE OILFIELD EROSION PROTECTION BY USING DIAMOND

摘要

A device for use with components for a downhole tool -- such as a throat, a nozzle, or a diffuser -- used for cleaning a wellbore, are disclosed which decreases the erosion of the components. The device may be comprised of a hardened materia l, such as stack of pure diamond disks brazed to form an insert for a throat. The devic e may also be comprised of polycrystalline diamond (PCD) washers stacked together and mechanically secured within the component such as a throat. The device may also be comprised of diamond grown on a mandrel into a trumpet shape, which may then be brazed or epoxied into the component. As each of these materials is harder than materials previously utilized, erosion performance is enhanced. A method of improving erosion performance of components utilized to clean a wellbore is also disclosed.