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91. 发明专利

CA2812573A1 CUTTING ELEMENTS, EARTH-BORING TOOLS INCORPORATING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS 未知
公开(公告)号：CA2812573A1
公开(公告)日：2012-04-05
申请号：CA2812573
申请日：2011-09-26
申请人： BAKER HUGHES INC
发明人： LYONS NICHOLAS J , SCOTT DANNY E
IPC分类号： E21B10/54 , B24D3/00 , E21B10/56 , E21B10/62
摘要： Cutting elements include a substrate, a thermally stable polycrystalline table comprising a superhard material secured to the substrate, and a layer of metal interposed between, and attaching the substrate and the thermally stable polycrystalline table. Methods of forming a cutting element include providing a thermally stable polycrystalline table in a mold, providing a layer of metal on the thermally stable polycrystalline table, distributing a mixture of particles comprising a plurality of hard particles and a plurality of particles comprising a matrix material on the layer of metal, and heating the mold while applying pressure to the mixture of particles to cause the mixture of particles to coalesce and form a substrate and at least partially melt the layer of metal to flow and wet the thermally stable polycrystalline table and the substrate to form an attachment therebetween.

92. 发明专利

GB2392181A DLC coating for earth-boring bit seal ring 未知
公开(公告)号：GB2392181A
公开(公告)日：2004-02-25
申请号：GB0319404
申请日：2003-08-19
申请人： BAKER HUGHES INC
发明人： SCOTT DANNY E , LIN CHIH , DICK AARON
IPC分类号： E21B10/22 , E21B10/25 , F16J15/34
摘要： A rolling cone cutter has a bearing pin 15 on which is mounted a cone 17. A bearing sleeve 21 rotates with the cone and a rigid ring 23 is biassed against the sleeve by an energizing ring 29. There is an excluder ring 31. One or both the inter-engaging faces of the sleeve and the ring 23 is coated with a layer of DLC material. The DLC material, or diamond-like carbon, is a form of meta-stable amorphous carbon or hydrocarbon compound with properties very similar to those of diamond. To form the layer on the face 27 of the ring 23, a first operation comprises the deposition of material trom an RF plasma, sustained in hydrocarbon gases, onto negatively biased ring 23. After heating, face 27 is etched by argon ion bombardment. Then one or more metallic interlayers is applied from a sputter source such as a chromium target. Lastly, acetylene is introduced and a plasma is ignited between face 27 and the chamber walls. The acetylene decomposes to form carbon atoms that coat face 27 on the metallic interlayer with DLC. During the entire coating process, the temperature will be maintained below the lowest transformation temperature of the ring 23. Other processes are suitable, including primary ion beam deposition of carbon items. The coating preferably has a thickness of 2 to 3 micrometers, the hardness is in the range from 2,000 to 5,000 Knoop.

93. 发明专利

GB2358820B Method of manufacturing pdc cutters with chambers or passages 未知
公开(公告)号：GB2358820B
公开(公告)日：2004-02-18
申请号：GB0102223
申请日：2001-01-26
申请人： BAKER HUGHES INC
发明人： SCOTT DANNY E
IPC分类号： E21B10/56 , E21B10/567 , E21B10/60 , E21B10/61 , E21B10/46
摘要： A cutting element for a drill bit used in drilling subterranean formations is formed with an internal chamber or passage for the flow of drilling fluid therethrough. The cutting element includes a substrate having at least one internal passage, and prior to attaching a superabrasive table thereto, the at least one internal passage is filled with a removable, substantially incompressible filler material. Attachment or bonding of the superabrasive table to the substrate under high temperature and high pressure is accomplished without significant distortion of the shape and size of the internal passage. The filler material may be a crystalline salt such as sodium chloride or halite, which is removable by dissolution in water, or may be boron nitride or a volcanic material such as Pyrofolyte material which is mechanically removable.

94. 发明专利

BE1014395A5 STRUCTURE DE COUPE. 未知
公开(公告)号：BE1014395A5
公开(公告)日：2003-10-07
申请号：BE200100436
申请日：2001-06-26
申请人： BAKER HUGHES INC
发明人： SMITH REDD H , SCOTT DANNY E , COOLEY CRAIG H , SKEEM MARCUS R
IPC分类号： E21B10/36 , E21B10/46 , E21B10/56 , E21B10/567 , E21B10/573
摘要： Structure à utiliser pour former un trou de forage dans une formation souterraine, lastrucuture comprenant au moins un couteau comportant un substrat, une couche de matière très abrasive présentant une surface de coupe et fixée sur une extrémité du substrat, et une interface entre le substrat et la couche de matière très abrasive, l'interface comprenant une partie en saillie comportant au moins un élément en saillie, annulaire dans l'ensemble en saillie, annulaire dans l'ensemble, comprenant au moins un élément en saillie annulaire dans l'ensemble et de géométrie polygonale, et au moins trois éléments en saillie, qui s'étendent radialement dans l'ensemble et qui coupent ledit au moins un élément annulaire dans l'ensemble.

95. 发明专利

GB2384259B Polycrystalline diamond cutters having modified residual stresses 未知
公开(公告)号：GB2384259B
公开(公告)日：2003-09-03
申请号：GB0306893
申请日：1999-12-24
申请人： BAKER HUGHES INC
发明人： BUTCHER TRENT N , HORTON RALPH M , JUREWICZ STEPEN R , SCOTT DANNY E , SMITH REDD H
IPC分类号： B22F7/06 , E21B10/56 , E21B10/573

96. 发明专利

GB2375128A Cutter for a drill bit 未知
公开(公告)号：GB2375128A
公开(公告)日：2002-11-06
申请号：GB0217374
申请日：2001-06-18
申请人： BAKER HUGHES INC
发明人： SMITH REDD H , SCOTT DANNY E , COOLEY CRAIG H , SKEEM MARCUS R
IPC分类号： E21B10/56 , E21B10/567 , E21B10/573
摘要： A cutter 102 for a drill bit has a substrate 104 with a substrate surface pattern 107 and a superabrasive layer 204 with a surface pattern 207 . The surface patterns 107 , 207 have complementary protrusive portions and depressed portions which interlock to form a three dimensional interface 150 . The substrate surface pattern 107 comprises annular raised portions 112 , 116 and a slot 118 which interlock with annular recessed portions 212 , 216 and tang 218 of superabrasive surface pattern 207 .

97. 发明专利

GB2374618A Multiple grade carbide for diamond capped insert 未知
公开(公告)号：GB2374618A
公开(公告)日：2002-10-23
申请号：GB0204240
申请日：2002-02-22
申请人： BAKER HUGHES INC
发明人： SCOTT DANNY E , SKEEM MARCUS R
IPC分类号： B22F7/06 , E21B10/16 , E21B10/56 , E21B10/567 , E21B10/573
摘要： An insert for a rolling cone earth-boring bit has a cylindrical base that interferingly presses into a mating hole formed in a cone of the bit. The insert has a convex end that extends from the base. A polycrystalline diamond cap 35, 335 is bonded to the convex end. The body is formed of at least two layers of carbide material having different mechanical properties, particularly a different modulus of elasticity. The first layer 37, 337 may have a metallic binder with a lesser percentage than the binder of the second layer 39, 341 to reduce the stress at the interface between the first layer and the diamond cap. The layers may have different average carbide average grain sizes, with finer average grain sizes adjoining the diamond cap. Further, the layers may have different binders, with cobalt being the binder in the layer adjoining the diamond cap and either nickel or a nickel-cobalt alloy in another layer.

98. 发明专利

ITTO20010329A1 未知
公开(公告)号：ITTO20010329A1
公开(公告)日：2002-10-07
申请号：ITTO20010329
申请日：2001-04-05
申请人： BAKER HUGHES INC
发明人： SCOTT DANNY E , PESSIER RUDOLF C O , BERZAS SEAN K , DUERHOLT RALF
IPC分类号： E21B10/54 , E21B10/55 , E21B10/56
摘要： A chip breaker for use in a fixed-cutter, rotary-type drill bit used in drilling subterranean formations is disclosed. The chip breaker includes a knife-like protrusion positioned proximate a cutting element and adjacent or in a fluid course defined by the drill bit body. As formation chips, shavings, or cuttings are generated during drilling, the chips move over the protrusion and are split or scribed by the protrusion. Drilling fluid breaks the split or scribed chips away from the surface of the fluid course adjacent the cutting element and transports them through the junk slots. Additionally, chip splitters may be positioned on ramped surfaces that further lift the formation chips away from the surface of the fluid course.

99. 发明专利

ITTO20010720D0 未知
公开(公告)号：ITTO20010720D0
公开(公告)日：2001-07-23
申请号：ITTO20010720
申请日：2001-07-23
申请人： BAKER HUGHES INC
发明人： OVERSTREET JAMES L , TIBBITTS GORDON A , RADFORD STEVEN R , LIN CHIH , SCOTT DANNY E , KOLTERMANN TERRY J , OXFORD JAMES A

100. 发明专利

ITTO20010329D0 未知
公开(公告)号：ITTO20010329D0
公开(公告)日：2001-04-05
申请号：ITTO20010329
申请日：2001-04-05
申请人： BAKER HUGHES INC
发明人： SCOTT DANNY E , PESSIER RUDOLF C O , BERZAS SEAN K , DUERHOLT RALF
IPC分类号： E21B10/54 , E21B10/55 , E21B10/56
摘要： A chip breaker for use in a fixed-cutter, rotary-type drill bit used in drilling subterranean formations is disclosed. The chip breaker includes a knife-like protrusion positioned proximate a cutting element and adjacent or in a fluid course defined by the drill bit body. As formation chips, shavings, or cuttings are generated during drilling, the chips move over the protrusion and are split or scribed by the protrusion. Drilling fluid breaks the split or scribed chips away from the surface of the fluid course adjacent the cutting element and transports them through the junk slots. Additionally, chip splitters may be positioned on ramped surfaces that further lift the formation chips away from the surface of the fluid course.

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