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1.发明公开SILICON CARBIDE COMPOSITE MATERIALS, EARTH-BORING TOOLS COMPRISING SUCH MATERIALS, AND METHODS FOR FORMING THE SAME 审中-公开碳化硅复合材料，包含这种材料的挖土工具和形成该材料的方法
公开(公告)号：EP2235316A2
公开(公告)日：2010-10-06
申请号：EP08868037.6
申请日：2008-12-19
发明人： SMITH, Redd, H. , STEVENS, John, H. , DUGGAN, James , LYONS, Nicholas, J. , EASON, Jimmy, W. , GLADNEY, Jared, D. , OXFORD, James, A. , CHREST, Benjamin, J.
CPC分类号： E21B10/46 , B22D23/00 , B22F3/162 , B22F2005/001 , B22F2999/00 , C22C1/1036 , C22C29/065 , C22C32/0063 , C22C2001/1047 , B22F3/1021 , C22C1/1094
摘要： Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material, such as, for example, an aluminum or aluminum-based alloy. In some embodiments, the silicon carbide particles comprise an ABC-SiC material. Methods of manufacturing such tools include providing a plurality of silicon carbide particles within a matrix material. Optionally, the silicon carbide particles may comprise ABC-SiC material, and the ABC-SiC material may be toughened to increase a fracture toughness exhibited by the ABC-SiC material. In some methods, at least one of an infiltration process and a powder compaction and consolidation process may be employed.
摘要翻译： 用于钻探地下地层的钻地工具包括颗粒基质复合材料，其包括分散在整个基体材料中的多个碳化硅颗粒，例如铝或铝基合金。 在一些实施例中，碳化硅颗粒包含ABC-SiC材料。 制造这种工具的方法包括在基体材料内提供多个碳化硅颗粒。 可选地，碳化硅颗粒可以包括ABC-SiC材料，并且ABC-SiC材料可以被韧化以增加由ABC-SiC材料表现出的断裂韧性。 在一些方法中，可以采用渗透过程和粉末压实和固结过程中的至少一种。
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2.发明授权METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS 有权方法教育地球镗刀利用几何补偿和与该程序的培训工具
公开(公告)号：EP2313595B1
公开(公告)日：2016-09-28
申请号：EP09759316.4
申请日：2009-06-03
发明人： SMITH, Redd, H. , STEVENS, John, H. , DUGGAN, James , LYONS, Nicholas, J. , EASON, Jimmy, W. , MATTHEWS, Oliver , CURRY, David, A.
IPC分类号： E21B10/00
CPC分类号： E21B10/00
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3.发明公开METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS 有权方法教育地球镗刀利用几何补偿和与该程序的培训工具
公开(公告)号：EP2313595A2
公开(公告)日：2011-04-27
申请号：EP09759316.4
申请日：2009-06-03
发明人： SMITH, Redd, H. , STEVENS, John, H. , DUGGAN, James , LYONS, Nicholas, J. , EASON, Jimmy, W. , MATTHEWS, Oliver , CURRY, David, A.
IPC分类号： E21B10/46
CPC分类号： E21B10/00
摘要： Geometric compensation techniques are used to improve the accuracy by which features may be located on drill bits formed using particle compaction and sintering processes. In some embodiments, a positional error to be exhibited by at least one feature in a less than fully sintered bit body upon fully sintering the bit body is predicted and the at least one feature is formed on the less than fully sintered bit body at a location at least partially determined by the predicted positional error. In other embodiments, bit bodies of earth-boring rotary drill bits are designed to include a design drilling profile and a less than fully sintered bit body is formed including a drilling profile having a shape differing from a shape of the design drilling profile. Less than fully sintered bit bodies of earth-boring rotary drill bits are formed using such methods.
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4.发明授权Methods of attaching a shank to a body of an earth boring tool including a load bearing joint and tools formed by such methods 有权附接至柄的Erdbohrungswerkzeugs与承重化合物一体的方法和通过这样的方法，工具产生的
公开(公告)号：EP2307658B1
公开(公告)日：2014-10-29
申请号：EP09759317.2
申请日：2009-06-03
发明人： SMITH, Redd, H. , DUGGAN, James
CPC分类号： E21B10/42 , B23P15/28 , E21B10/00 , Y10T29/49826
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5.发明公开METHODS OF ATTACHING A SHANK TO A BODY OF AN EARTH BORING TOOL INCLUDING A LOAD BEARING JOINT AND TOOLS FORMED BY SUCH METHODS 有权附接至柄的Erdbohrungswerkzeugs与承重化合物一体的方法和通过这样的方法，工具产生的
公开(公告)号：EP2307658A2
公开(公告)日：2011-04-13
申请号：EP09759317.2
申请日：2009-06-03
发明人： SMITH, Redd, H. , DUGGAN, James
CPC分类号： E21B10/42 , B23P15/28 , E21B10/00 , Y10T29/49826
摘要： Earth-boring rotary drill bits including a bit body attached to a shank assembly at a joint. In some embodiments, the joint may be configured to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference at the joint. In additional embodiments, the joint may be configured to carry a selected portion of any tensile longitudinal load applied to the drill bit. Methods for attaching a shank assembly to a bit body of an earth-boring rotary drill bit include configuring a joint to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference. Additional embodiments include configuring a joint to carry a selected portion of any tensile longitudinal load applied to the drill bit by mechanical interference.
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