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公开(公告)号：EP0295032A2
公开(公告)日：1988-12-14
申请号：EP88305151.8
申请日：1988-06-06
IPC分类号： E21B10/52
CPC分类号： E21B10/52
摘要： An inclined chisel crested insert (22) is disclosed for use on the gage row of a cone (18) for a rotary cone rock bit (10). The insert has different conical surfaces (42, 45) on opposite sides of the crown (44) of the insert. An elongate conically shaped gage cutting surface (42) of the insert provides point or line contact with a borehole wall (37) as opposed to a full surface contact with the wall as is common with state of the art flat sided gage row inserts. This inclined chisel insert also has advantages over the symmetrical chisel type gage insert in that it is designed to provide increased crest length while providing the desired gage surface angle. The conically shaped gage row inserts with offset chisel crest are less prone to frictional heating due to the point or line contact design. As a result the elongate conical gage cutting surface of the chisel crest insert minimises gage insert wear and subsequent breakage by eliminating high cycle thermal fatigue.
摘要翻译： 公开了一种倾斜的凿形冠状插入件（22），其用于旋转锥形岩石钻头（10）的锥形（18）的计量行上。 插入件在插入件的冠部（44）的相对侧上具有不同的圆锥形表面（42,45）。 插入件的细长圆锥形的规格切割表面（42）提供与钻孔壁（37）的点接触或线接触，而不是与壁的全表面接触，这与现有技术的平坦侧面规格行插件的常见状态相同。 这种倾斜的凿子插入件与对称的凿子类型的插入件相比也具有优点，其设计为在提供期望的标准表面角度的同时提供增加的波峰长度。 由于点或线接触设计，带偏置凿尖的圆锥形规位插件不易发生摩擦发热。 结果，凿尖插入件的细长圆锥形切割表面通过消除高循环热疲劳而最小化了计量插入件磨损和随后的破损。
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公开(公告)号：EP0237359A2
公开(公告)日：1987-09-16
申请号：EP87302180.2
申请日：1987-03-13
CPC分类号： E21B10/567 , E21B10/50 , E21B10/52 , E21B10/62
摘要： A rotary drag bit (11) has cutters (19) rotatably mounted to fixtures (21) with journals. The cutters (19) are constantly forced to rotate or precess by the interaction between the earth formation and the cutter (19). The cutters (19) are fixed in skewed or offset positions on a cutting face (17) of a rotary drill bit head (11). These cutters (19) act as drag or shear cutters when they are operated in an earth formation.
摘要翻译： 旋转刮刀（11）具有可旋转地安装到具有轴颈的固定装置（21）的切割器（19）。 通过地层与切割器（19）之间的相互作用，切割器（19）不断地被迫旋转或进动。 刀具（19）在旋转钻头头部（11）的切割面（17）上以歪斜或偏移的位置固定。 这些切割器（19）在地层中操作时用作拖曳或剪切切割器。
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公开(公告)号：EP0169718A3
公开(公告)日：1987-01-21
申请号：EP85305165
申请日：1985-07-19
申请人： CDP, Ltd.
发明人： Ecer, Gunes M.
摘要： A roller bit cutter comprises:
a) a tough, metallic generally conical and fracture resistant core having a hollow interior, the core defining an axis, b) an annular metallic radial bearing layer carried by said core at the interior thereof to support the core for rotation, said bearing layer extending about said axis, c) an impact and wear resistant metallic inner layer on the core at the interior thereof, to provide an axial thrust bearing, and d) hard metallic inserts having anchor portions carried by the core and partly embedded therein, the inserts protruding outwardly at the exterior of the core to define cutters, at least some of the inserts spaced about said axis, e) and a wear resistant outer metallic layer on the exterior of said core.-
公开(公告)号：EP0169717A3
公开(公告)日：1986-12-30
申请号：EP85305163
申请日：1985-07-19
申请人： CDP, LTD.
发明人： ECER, GUNES M.
CPC分类号： E21B10/22 , B22F2005/001 , E21B10/52
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公开(公告)号：EP0177209A3
公开(公告)日：1986-09-24
申请号：EP85306518
申请日：1985-09-13
申请人： CDP, Ltd.
发明人： Ecer, Gunes M.
CPC分类号： E21B17/1078 , B22F3/15 , B22F3/22 , B22F7/06 , B22F2005/001 , E21B10/22 , E21B10/46 , E21B10/50 , E21B10/52
摘要： A method of consolidating metallic body means comprises
a) applying to the body means a mixture of:
i) metallic powder ii) fugitive organic binder iii) volatile solvent b) drying the mixture, and c) burning out the binder and solvent at elevated temperature, d) and applying pressure to the powdered metal to consolidate same on said body means.摘要翻译： 一种固结金属体装置的方法包括（a）向身体提供以下混合物：（i）金属粉末（ii）挥发性有机粘合剂（iii）挥发性溶剂（b）干燥混合物，和（c） 粘合剂和溶剂，（d）并向粉末金属施加压力以在所述主体装置上固结。
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公开(公告)号：EP0169717A2
公开(公告)日：1986-01-29
申请号：EP85305163.9
申请日：1985-07-19
申请人： CDP, Ltd.
发明人： Ecer, Gunes M.
CPC分类号： E21B10/22 , B22F2005/001 , E21B10/52
摘要： A roller bit cutter comprises:
a) a tough, metallic, generally conical and fracture resistant core having a hollow interior, the core defining an axis,
b) an annular, metallic, radial bearing layer carried by said core at the interior thereof to support the core for rotation, said bearing layer extending about said axis,
c) a wear resistant outer metallic layer on the exterior of the core,
d) metallic teeth integral with the core and protruding outwardly therefrom, at least some of said teeth spaced about said axis,
e) and an impact and wear resistant layer on each tooth to provide hard cutting edges as the bit cutter is rotated about said axis.-
37.发明公开Rock bit cutter cones having metallurgically bonded cutter inserts 失效Konisches Gesteinsschneidwerkzeug mit metallisch gebundenenSchneideinsätzen。
公开(公告)号：EP0142941A1
公开(公告)日：1985-05-29
申请号：EP84307183.8
申请日：1984-10-18
CPC分类号： B22F7/064 , B22F2005/001 , B22F2998/00 , E21B10/22 , E21B10/52 , B22F7/08
摘要： A rock bit cutter cone (10) for a drill bit (12) is disclosed wherein hard carbide cutter inserts (26) are metallurgically bonded into an interior core (28) of the cone through a cladding (34). The cladding (34) is bonded on to the exterior surface of the core (28) by a powder metallurgy process. The cladding (34) retains the inserts (26) in the core (28). A thin layer or coating (44) of a suitable metal, preferably nickel, is provided on the carbide insert (26) prior to mounting into the core (28). The coating (44) prevents degradation of the carbide through loss of carbon into the core (28) during the powder metallurgy process and accommodates mismatch of thermal expansion between the cutter insert (26) and the core (28). The interior of the cone is formed to provide bearing surfaces (34, 40) either by conventional techniques, or by powder metallurgy processes. Bearing surfaces formed in the interior of the core by powder metallurgy processes may be hard so as to permit an open bearing structure for the drill bit.
摘要翻译： 公开了一种用于钻头（12）的钻头铣刀锥（10），其中硬质合金刀具刀片（26）通过包层（34）冶金地结合到锥体的内部芯（28）中。 包层（34）通过粉末冶金工艺结合在芯（28）的外表面上。 包层（34）将插入件（26）保持在芯部（28）中。 在安装到芯（28）之前，在碳化物插入件（26）上提供合适的金属（优选镍）的薄层或涂层（44）。 涂层（44）通过在粉末冶金过程期间通过将碳损失到芯（28）中来防止碳化物的降解，并且适应刀片插入件（26）和芯部（28）之间的热膨胀失配。 锥体的内部形成为通过常规技术或通过粉末冶金方法提供轴承表面（34,40）。 通过粉末冶金工艺在芯部内部形成的轴承表面可能是困难的，从而允许用于钻头的开放的轴承结构。
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38.发明公开
公开(公告)号：EP0083287A1
公开(公告)日：1983-07-06
申请号：EP82402381.6
申请日：1982-12-24
申请人： STENUICK FRERES S.A.
发明人： Techy, Marcel
CPC分类号： E21B10/56
摘要： L'invention concerne un outil de forage et plus particulièrement un bouton en matériau dur, pour outil de perforation, constitué d'une tête (6) prolongée par un corps (7) destiné à être serti à l'extrémité de l'outil, dans une alvéole (4) de dimensions légèrement inférieures à celles du corps (7).
Selon l'invention, la surface extérieure du corps (7) comporte des parties saillantes (8) destinées à pénétrer dans la paroi intérieure de l'alvéole (4) lors du sertissage du bouton dans l'alvéole (4).
Application aux taillants pour marteaux pneumatiques, perforateurs ou tricônes.摘要翻译： 1.一种由用于钻具的硬质材料制成的螺柱，其由通过主体（7）延伸的头部（6）构成，该头部（6）旨在被设置在具有略小于该尺寸的尺寸的腔室（4）中的工具的端部中 主体（7），当螺柱（5）被设置到腔室（4）中时，主体（7）的外表面具有旨在穿过腔室（4）的内壁的齿（8）的螺柱，其特征在于 因为齿（8）沿着标记在主体（7）的表面上的螺旋线布置。
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公开(公告)号：EP0036772A3
公开(公告)日：1981-11-11
申请号：EP81301217
申请日：1981-03-23
发明人： Taylor, Philip Alan , Carter, Mark Warren , Childers, John Stevenson , Pastusek, Paul Ernest , Schumacher, Percy William
摘要： This invention discloses a rolling cone drilling bit (10) having a plurality of cutters (16) which have inserted therein hard metal cutting elements (22) preferably formed of tungsten carbide alloy; and in which bit the rolling cone cutters (16) are located in such a manner that their rotational axes (32) are greatly offset from the rotational axis (34) of the drill bit. In addition, a fluid jetting system is provided in the invention that directs a pressurized fluid spray (46) across the main cutting inserts and against the formation face so that when the drill bit (10) is used in its most advantageous areas, such as the soft, medium-soft and plastic formations, the jetting system prevents "balling up» of the cutters (16) and greatly increases the drilling efficiency of the bit.
摘要翻译： 滚动刀头具有可旋转地安装在向下延伸的腿上的中空钻头体和切割器。 喷射装置与钻头体的中空部分流体连通，并引导流体喷射穿过从刀具突出的切割元件。 刀具的旋转轴线从钻头的旋转轴线偏离每英寸钻头直径约1/16英寸或更大。 用于通过地下油气钻井钻孔。 在软中软地层钻井时，渗透率和钻井效率提高。 流体喷雾清洁切割元件，而不会碰撞切割锥体表面并导致磨损。 这些喷雾也被引导穿过地层，以便当它们产生时冲洗和清洁切屑。
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公开(公告)号：EP3243926B1
公开(公告)日：2020-07-22
申请号：EP17170319.2
申请日：2017-05-10
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