公开(公告)号：US10787737B2

公开(公告)日：2020-09-29

申请号：US15769115

申请日：2016-11-09

Applicant: National Oilwell DHT, L.P.

Inventor： Anil Kumar ,  Russell C. Gilleylen ,  Rajagopala N. Pillai ,  Wei Liu

IPC: C23C16/32 ,  E21B10/567 ,  C23C16/04 ,  C23C16/27 ,  C23C16/30 ,  C23C30/00 ,  C23C26/02 ,  C23C28/04

Abstract: A coating for a diamond table of a cutting element is described. The coating is employed to fill a plurality of voids left by the manufacturing process that compromise the integrity of the cutting element and the associated downhole tooling. The coating may comprise diamond nanoparticles in a metal matrix and may be used with or without a binder layer applied directly to the diamond table, the coating may alternatively be a pure diamond film coating, and may be employed to fill voids left by the manufacturing process.

公开(公告)号：US10906104B2

公开(公告)日：2021-02-02

申请号：US16064450

申请日：2017-01-27

Applicant: National Oilwell DHT, L.P.

Inventor： Biju Pillai Kumar ,  Bradley S. Ivie ,  Wei Liu ,  Anil Kumar ,  Russell C. Gilleylen ,  Michael D. Hughes ,  Jagdish Narayan

IPC: B22F7/06 ,  E21B10/567 ,  C22C37/10 ,  B22D25/06 ,  C23C4/129 ,  B22F5/00 ,  E21B10/46 ,  E21B10/50 ,  E21B10/55

Abstract: Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.

公开(公告)号：US20190022759A1

公开(公告)日：2019-01-24

申请号：US16064450

申请日：2017-01-27

Applicant: National Oilwell DHT, L.P.

Inventor： Biju Pillai Kumar ,  Bradley S. Ivie ,  Wei Liu ,  Anil Kumar ,  Russell C. Gilleylen ,  Michael D. Hughes

IPC: B22F7/06 ,  B22F5/00 ,  C23C4/129 ,  E21B10/567 ,  E21B10/46

Abstract: Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.

公开(公告)号：US20180305810A1

公开(公告)日：2018-10-25

申请号：US15769115

申请日：2016-11-09

Applicant: National Oilwell DHT, L.P.

Inventor： Anil Kumar ,  Russell C. Gilleylen ,  Rajagopala N. Pillai ,  Wei Liu

IPC: C23C16/32 ,  E21B10/567 ,  C23C16/27 ,  C23C16/04

CPC classification number: C23C16/32 ,  C23C16/045 ,  C23C16/27 ,  C23C16/30 ,  C23C26/02 ,  C23C28/044 ,  C23C30/005 ,  E21B10/567

Abstract: Systems and methods discussed herein are related to a coating for a diamond table for a cutting element that may be used in downhole tooling. The coating is employed to fill a plurality of voids left by the manufacturing process that compromise the integrity of the cutting element and the associated downhole tooling. The coating may comprise diamond nanoparticles in a metal matrix and may be used with or without a binder layer applied directly to the diamond table, the coating may alternatively be a pure diamond film coating, and may be employed to fill voids left by the manufacturing process.