E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/00 (2006.01) E21B 41/00 (2006.01) F04F 5/46 (2006.01)
Patent
CA 2479562
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 material, such as stack of pure diamond disks brazed to form an insert for a throat. The device 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.
Lambert Mitchell D.
Ravensbergen John
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bj Services Company Canada
Lambert Mitchell D.
Ravensbergen John
LandOfFree
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