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公开(公告)号：US09359824B2
公开(公告)日：2016-06-07
申请号：US14162501
申请日：2014-01-23
申请人： Varel Europe S.A.S.
发明人： Gary M. Thigpen , Federico Bellin , Marvin Windsor Amundsen , Olivier Ther , Alfazazi Dourfaye , Bruno Cuillier De Maindreville , Williams Gomez
摘要： An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a tungsten carbide powder, a shoulder powder, and a binder material, wherein at least one of the tungsten carbide powder or the shoulder powder is absent of any free tungsten. The blank, which optionally may be coated, is substantially cylindrically shaped and defines a channel extending from a top portion and through a bottom portion of the blank. The absence of free tungsten from at least one of the tungsten carbide powder or the shoulder powder reduces the reaction with iron from the blank, thereby allowing the control and reduction of intermetallic compounds thickness within the bondline.
摘要翻译： 一种用于制造井下工具的装置和方法，其减少沿着围绕坯料耦合的胶结基体之间的粘合线发生的故障。 胶结基体材料由碳化钨粉末，肩状粉末和粘合剂材料形成，其中至少一种碳化钨粉末或肩状粉末不含任何游离钨。 任选地可以涂覆的坯件基本上是圆柱形的并且限定了从顶部延伸并穿过坯料的底部的通道。 来自碳化钨粉末或肩部粉末中的至少一种的游离钨的存在减少了来自坯料的铁的反应，从而允许控制和还原粘合层内的金属间化合物厚度。
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公开(公告)号：US10605010B2
公开(公告)日：2020-03-31
申请号：US15971613
申请日：2018-05-04
申请人： VAREL EUROPE S.A.S.
发明人： Bruno Cuillier De Maindreville , Gilles Gallego , Anthony Salliou , Yves Cazalas , Vijayavelan Vijayabalan
IPC分类号： E21B10/573 , E21B10/42 , B23C3/16 , E21B10/633 , B23P15/28 , E21B10/567 , B23K1/00 , B22D23/06 , B22D19/06
摘要： A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a cutter including: a substrate mounted in a pocket formed in the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a non-planar working face with a cutting feature; and a cutter orienting system including: a keyway formed in the substrate and angularly located opposite from the cutting feature; and a key formed in or mounted to the pocket and engaged with the keyway.
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公开(公告)号：US09951567B2
公开(公告)日：2018-04-24
申请号：US14485302
申请日：2014-09-12
申请人： Varel Europe S.A.S.
CPC分类号： E21B10/602 , E21B10/61
摘要： A curved nozzle for use in a drill bit is disclosed. The curved nozzle includes a flow path that directs drilling fluid towards the face of cutters. The curved nozzle may include a base, neck, and a tip. Flow entering the nozzle, travels along a flow path through the nozzle and out the tip. The flow path may be reduced as it passes through the nozzle. The flow is curved as it flows through the neck and out the tip. The nozzle includes cooperating interior surfaces that guide the flow. The upper interior surface may include two curved zones. The first zone will be a substantially constant radius of curvature. The second zone, extending from the first zone, may be straight.
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公开(公告)号：US10329843B2
公开(公告)日：2019-06-25
申请号：US15585343
申请日：2017-05-03
申请人： VAREL EUROPE S.A.S.
IPC分类号： E21B10/02 , E21B10/42 , E21B10/48 , E21B10/54 , E21B10/60 , E21B10/567 , E21B17/042
摘要： A drill bit includes a shank having a threaded coupling formed at an upper end thereof; a bit body mounted to a lower end of the shank and having a plenum; a gage section forming an outer portion of the drill bit; a cutting face forming a lower end of the drill bit and including: a core receptacle formed at a center of the cutting face, operable to receive a core of earth, and including: a concave core cutter mounted to a bottom of the bit body; and a core port extending from the plenum through the bottom of the bit body and operable to discharge drilling fluid onto the core and core cutter; a plurality of blades protruding from a bottom of the bit body and extending from a periphery of the core receptacle to the gage section; and a plurality of leading cutters mounted along each blade.
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公开(公告)号：US20180355672A1
公开(公告)日：2018-12-13
申请号：US15971613
申请日：2018-05-04
申请人： VAREL EUROPE S.A.S.
发明人： Bruno Cuillier De Maindreville , Gilles Gallego , Anthony Salliou , Yves Cazalas , Vijayavelan Vijayabalan
IPC分类号： E21B10/573 , E21B10/42 , B23C3/16
CPC分类号： E21B10/573 , B22D19/06 , B22D23/06 , B23C3/16 , B23K1/0008 , E21B10/42
摘要： A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a cutter including: a substrate mounted in a pocket formed in the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a non-planar working face with a cutting feature; and a cutter orienting system including: a keyway formed in the substrate and angularly located opposite from the cutting feature; and a key formed in or mounted to the pocket and engaged with the keyway.
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公开(公告)号：US20170335630A1
公开(公告)日：2017-11-23
申请号：US15585343
申请日：2017-05-03
申请人： VAREL EUROPE S.A.S.
IPC分类号： E21B10/02 , E21B10/48 , E21B10/567 , E21B10/54 , E21B10/60 , E21B10/42 , E21B17/042
CPC分类号： E21B10/02 , E21B10/42 , E21B10/48 , E21B10/54 , E21B10/567 , E21B10/602 , E21B10/605 , E21B17/042 , E21B2010/545
摘要： A drill bit includes a shank having a threaded coupling formed at an upper end thereof; a bit body mounted to a lower end of the shank and having a plenum; a gage section forming an outer portion of the drill bit; a cutting face forming a lower end of the drill bit and including: a core receptacle formed at a center of the cutting face, operable to receive a core of earth, and including: a concave core cutter mounted to a bottom of the bit body; and a core port extending from the plenum through the bottom of the bit body and operable to discharge drilling fluid onto the core and core cutter; a plurality of blades protruding from a bottom of the bit body and extending from a periphery of the core receptacle to the gage section; and a plurality of leading cutters mounted along each blade.
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