公开(公告)号：CA2734250A1

公开(公告)日：2010-02-18

申请号：CA2734250

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL

Inventor： KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ROTH CARY A ,  ALSUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227

Abstract: A method for applying a wear reducing material to a tool used in a wellbore operation that includes welding a hardfacing alloy to a surface of the tool, wherein the welding comprises friction stirring the alloy into the tool's surface is disclosed. Methods of welding a preformed sleeve or width of wear reducing material using friction stirring are also disclosed.

公开(公告)号：BRPI0917209A2

公开(公告)日：2015-11-10

申请号：BRPI0917209

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL

Inventor： ROTH CARY A ,  KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ASLUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227 ,  B23K101/20

公开(公告)号：BRPI0917407A2

公开(公告)日：2016-10-11

申请号：BRPI0917407

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL

Inventor： ROTH CARY A ,  KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ALSUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227 ,  B23K20/233 ,  B23K101/20

公开(公告)号：CA2732772A1

公开(公告)日：2010-02-18

申请号：CA2732772

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL

Inventor： KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ROTH CARY A ,  ALSUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227 ,  B23K20/233

Abstract: A method for treating a wear reducing material welded to a surface of a tool used in a wellbore operation that includes friction stirring the wear reducing material into the surface of the tool is disclosed. Method for improving the properties of a wear reducing material on a tool are also disclosed.

公开(公告)号：CA2357569C

公开(公告)日：2005-11-22

申请号：CA2357569

申请日：2001-09-21

Applicant: SMITH INTERNATIONAL

Inventor： ROTH CARY A ,  DAVIES PETER M ,  BOND DENNIS ,  PENKA HUBERT W JR

IPC: B23P15/28 ,  E21B20060101 ,  B21K5/02 ,  E21B10/46

Abstract: A method is disclosed for forming a drill bit structure to which a cutting element is to be affixed. The method includes applying a layer of hardfacing material t o a basic bit structure, removing the layer of hardfacing material in a location to which the cutting element is to be affixed, and forming an attachment structure at the locatio n. In one embodiment, the removing is performed by electrode discharge machining. In o ne embodiment, the basic bit structure is a roller cone, and the cutting elemen t is an insert adapted to be interference fit within a socket in the roller cone.

公开(公告)号：CA2357569A1

公开(公告)日：2002-03-22

申请号：CA2357569

申请日：2001-09-21

Applicant: SMITH INTERNATIONAL

Inventor： PENKA HUBERT W JR ,  ROTH CARY A ,  DAVIES PETER M ,  BOND DENNIS

IPC: B23P15/28 ,  E21B20060101 ,  B21K5/02 ,  E21B43/12 ,  E21B10/46

Abstract: A method is disclosed for forming a drill bit structure to which a cutting element is to be affixed. The method includes applying a layer of hardfacing material t o a basic bit structure, removing the layer of hardfacing material in a location to which the cutting element is to be affixed, and forming an attachment structure at the locatio n. In one embodiment, the removing is performed by electrode discharge machining. In o ne embodiment, the basic bit structure is a roller cone, and the cutting elemen t is an insert adapted to be interference fit within a socket in the roller cone.

公开(公告)号：CA1336285C

公开(公告)日：1995-07-11

申请号：CA585562

申请日：1988-12-09

Applicant: SMITH INTERNATIONAL

Inventor： KESHAVAN MADAPUSI K ,  UNDERWOOD LANCE D ,  KAR NARESH J ,  OLDHAM THOMAS W ,  ROTH CARY A ,  ARMSTRONG BRIAN J

IPC: B23K35/12 ,  B23K35/32 ,  C22C29/08 ,  E21B10/50

Abstract: A hard facing for teeth on a milled tooth rock bit comprises at least 65% by weight of a mixture of tungsten carbide particles and a balance of steel bonding the carbide particles together and to the cutter cone of the rock bit. The tungsten carbide particle mixture comprises from 35% to 80%, and preferably from 65% to 80%, by weight 20 to 30 mesh cemented tungsten carbide, and from 20% to 65%, and preferably from 20% to 35% by weight 40 to 80 mesh single crystal monotungsten carbide.

公开(公告)号：EP2334462A4

公开(公告)日：2015-10-21

申请号：EP09807268

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL

Inventor： KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ROTH CARY A ,  ALSUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227 ,  B23K20/233 ,  B23K101/20

CPC classification number: B23K20/1275 ,  B23K2201/06

公开(公告)号：EP2334463A4

公开(公告)日：2017-03-01

申请号：EP09807267

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL

Inventor： KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ROTH CARY A ,  ALSUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227 ,  B23K101/20

CPC classification number: B23K20/122 ,  B23K20/22 ,  B23K2201/06

公开(公告)号：WO2010019735A3

公开(公告)日：2010-05-20

申请号：PCT/US2009053645

申请日：2009-08-13

Applicant: SMITH INTERNATIONAL ,  KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ROTH CARY A ,  ALSUP SHELTON W

Inventor： KESHAVAN MADAPUSI K ,  STEEL RUSSELL J ,  ROTH CARY A ,  ALSUP SHELTON W

IPC: B23K20/12 ,  B23K20/22 ,  B23K20/227 ,  B23K20/233 ,  B23K101/20

CPC classification number: B23K20/1275 ,  B23K2201/06

Abstract: A method for treating a wear reducing material welded to a surface of a tool used in a wellbore operation that includes friction stirring the wear reducing material into the surface of the tool is disclosed. Method for improving the properties of a wear reducing material on a tool are also disclosed.

Abstract translation: 公开了一种用于处理焊接到用于井筒操作的工具的表面的减磨材料的方法，该方法包括将减磨材料摩擦搅拌到工具的表面中。 还公开了用于改善工具上的磨损减少材料的性能的方法。