1
Stephen Martin Evans, Terry R Matthias, Tom Scott Roberts: Method of applying a wear-resistant layer to a surface of a downhole component. Camco International, Jeffery E Daly, May 22, 2001: US06234261 (83 worldwide citation)

A method is disclosed comprising the steps of locating, on a surface of a downhole component, a plurality of thermally stable polycrystalline diamond (TSP) bearing elements, and then applying to the surface a settable facing material which bonds to the surface between the bearing elements and embrac ...


2
Stephen Martin Evans, Andrew Bell: Methods of manufacturing rotary drill bits. Camco International, Jeffery E Daly, November 21, 2000: US06148936 (71 worldwide citation)

A rotary drill bit is manufactured by a powder metallurgy process by placing a metal mandrel in a mold, packing the mold with particulate matrix-forming material, infiltrating the material with a molten binding alloy, and cooling the assembly to form a solid infiltrated matrix bonded to the mandrel. ...


3
Stephen Martin Evans: Methods of manufacturing rotary drill bits. Camco International, Jeffery E Daly, February 19, 2002: US06348110 (40 worldwide citation)

A rotary drill bit is manufactured by a method including the step of forming at least a portion of the bit body from a precipitation hardening alloy, and brazing cutters to the bit body by a heating and cooling cycle during which the bit body is first heated to a temperature sufficient to melt the b ...


4
Stephen Martin Evans, Terry R Matthias, Tom Scott Roberts: Method of applying a wear-resistant layer to a surface of a downhole component. Jeffery E Daly, June 10, 2003: US06575350 (20 worldwide citation)

A method is disclosed comprising the steps of locating, on a surface of a downhole component, a plurality of thermally stable polycrystalline diamond (TSP) bearing elements, and then applying to the surface a settable facing material which bonds to the surface between the bearing elements and embrac ...


5
Stephen Martin Evans: Methods of manufacturing rotary drill bits. Camco International, Jeffery E Daly, September 12, 2000: US06116360 (7 worldwide citation)

A rotary drill bit is manufactured by a method including the step of forming at least a portion of the bit body from a precipitation hardening alloy, and brazing cutters to the bit body by a heating and cooling cycle during which the bit body is first heated to a temperature sufficient to melt the b ...


6
Stephen Martin Evans, Terry R Matthias, Tom Scott Roberts: Method of applying a wear-resistant layer to a surface of a downhole component. Schlumberger Oilfield Services, Jeffrey E Daly, August 30, 2001: US20010017224-A1

A method of applying a wear-resistant material to a surface of a downhole component for use in subsurface drilling comprises forming a plurality of bearing elements, applying a layer of an electrically conductive, less hard material to each bearing element, and then bonding each bearing element to t ...


7
Stephen Martin Evans, Terry R Matthias, Tom Scott Roberts: Method of applying a wear-resistant layer to a surface of a downhole component. Schlumberger Oilfield Services, Jeffrey E Daly, October 18, 2001: US20010030067-A1

A method is disclosed comprising the steps of locating, on a surface of a downhole component, a plurality of thermally stable polycrystalline diamond (TSP) bearing elements, and then applying to the surface a settable facing material which bonds to the surface between the bearing elements and embrac ...



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