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公开(公告)号：EP1454031A4
公开(公告)日：2005-11-30
申请号：EP02802959
申请日：2002-10-30
发明人： TERLET CHRISTOPHER JOHN , MOIR FREDRIC GRAHAM , MCINNES MALCOLM BICKNELL , DEBARRO ANTHONY JOSEPH ALEXAND
CPC分类号： E21B10/38
摘要： The invention is a transmission sleeve for the reverse cirulcation down hole hammer activated by fluid under pressure, the hammer including an outer hammer casing, a drill bit retaining means (17) and a drill bit (10) retaining means (17) and extending forwardly therefrom. The transmission sleeve (25) comprises a transmission sleeve retaining means to retain the transmission sleeve (25) to the hammer, a flange (28) to direct exhaust fluid from the hammer extending from the transmission sleeve retaining means towards the cutting face (14) of the drill bit (10) so that the exhaust fluid is directed towards the cutting face (14) and a chamber (30) that extends circumferentially around the drill bit (10) into which the exhaust fluid flows prior to discharge from the end of the flange (28). The chamber (30) makes it possible for air pressure to be equalised around the periphery of the drill bit (10) and allows for some air flow from the end of the flange (28) between the channels (31) in the drill bit (10) to provide a curtain of air flow from the flange (28).
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公开(公告)号：EP3409880A1
公开(公告)日：2018-12-05
申请号：EP17173243.1
申请日：2017-05-29
申请人： Intercable GmbH
发明人： Mutschlechner, Klaus
摘要： Die Erfindung betrifft einen Hybrid-Eisbohrer (1) zum Erzeugen eines Bohrlochs in Eis und Schnee zur Aufnahme und zur Verankerung von Slalom-und Netzstangen für den Skisport. Der Hybrid-Eisbohrer (1) umfasst einen Bohrerschaft (2) und eine Bohrerwendel (3) mit Wendeln (4, 5) in einer spiralförmigen Ausdehnungsrichtung und mit spiralförmigen Rillen (6, 7) in einer spiralförmigen Ausdehnungsrichtung, wobei die Bohrerwendel (3) den Bohrerschaft (2) bereichsweise koaxial umgibt. Der Bohrerschaft (2) ist aus einem Metall hergestellt, und die Bohrerwendel (3) ist aus einem Kunststoff hergestellt, und die Wendeln (4, 5) weisen entlang ihrer spiralförmigen Ausdehnungsrichtung jeweils einen konstanten Querschnitt auf.
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公开(公告)号：EP1236861A1
公开(公告)日：2002-09-04
申请号：EP02400013.5
申请日：2002-03-04
发明人： Thigpen Gary M. , Keith Carl W.
摘要： A drag type casing mill/drill bit for down hole milling of a casing window and lateral drilling of a bore hole in an earth formation comprises a bit body adapted to be rotated in a defined direction. The bit body includes an operating end face (20) having a plurality of radially extending blades (22) formed as a part of the operating end face of the bit body. A plurality of primary cutting elements (24) are individually mounted in pockets in one of the plurality of blades. In addition, a plurality of secondary ridge structures (26) are mounted to each of the plurality of blades interspersed with the plurality of primary cutting elements (24) in a pattern such that as the bit body rotates the secondary ridge structures (26) contact the casing or the earth formation thereby protecting the primary cutting elements (24) and allowing continuous substantially smooth casing milling and earth formation drilling.
摘要翻译： 用于套管窗口的井下铣削和在地层中的钻孔的侧向钻孔的拖式式套管机/钻头包括适于沿着限定方向旋转的钻头体。 钻头体包括具有形成为钻头体的操作端面的一部分的多个径向延伸的刀片（22）的操作端面（20）。 多个主切割元件（24）分别安装在多个叶片中的一个中的凹穴中。 此外，多个次级脊结构（26）以图案形式安装到散布有多个主切割元件（24）的多个叶片中的每一个上，使得当钻头体旋转时，辅助脊结构（26）接触 壳体或地层形成，从而保护主切割元件（24）并且允许连续的基本平滑的套管铣削和地层钻孔。
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公开(公告)号：EP4053305A1
公开(公告)日：2022-09-07
申请号：EP21893121.0
申请日：2021-12-27
发明人： ZHENG, Yu , LIU, Nian , CAO, Lijuan , LI, Weiming
摘要： The present application discloses a sealed cobalt removal tooling, method and reagent, and a polycrystalline diamond compact. The tooling comprises a sealing sleeve, a clamping mechanism, and a pressing mechanism. The sealing sleeve is configured to be sleeved over an outer wall of a workpiece; the clamping mechanism is sleeved over an outer wall of the sealing sleeve; the clamping mechanism is configured to provide a first pressure to the sealing sleeve; the pressing mechanism is arranged on the top of the sealing sleeve and is configured to provide a second pressure to the sealing sleeve; and an inner cavity for containing a chemical reagent is formed inside the pressing mechanism, and the top of the workpiece can extend into the inner cavity. The present application has the advantages that the overall service life of the tooling can be prolonged, a reaction speed of the chemical reagent can be increased, a cobalt removal depth can reach 1200 µm or above, and the requirements for ultra-deep cobalt removal of the workpiece can be met.
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公开(公告)号：EP3409880B1
公开(公告)日：2020-07-08
申请号：EP17173243.1
申请日：2017-05-29
申请人： Intercable GmbH
发明人： Mutschlechner, Klaus
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公开(公告)号：EP1454031A1
公开(公告)日：2004-09-08
申请号：EP02802959.3
申请日：2002-10-30
发明人： TERLET, Christopher, John , MOIR, Fredric, Graham , McINNES, Malcolm, Bicknell , DeBARRO, Anthony, Joseph, Alexander
CPC分类号： E21B10/38
摘要： The invention is a transmission sleeve for the reverse cirulcation down hole hammer activated by fluid under pressure, the hammer including an outer hammer casing, a drill bit retaining means (17) and a drill bit (10) retaining means (17) and extending forwardly therefrom. The transmission sleeve (25) comprises a transmission sleeve retaining means to retain the transmission sleeve (25) to the hammer, a flange (28) to direct exhaust fluid from the hammer extending from the transmission sleeve retaining means towards the cutting face (14) of the drill bit (10) so that the exhaust fluid is directed towards the cutting face (14) and a chamber (30) that extends circumferentially around the drill bit (10) into which the exhaust fluid flows prior to discharge from the end of the flange (28). The chamber (30) makes it possible for air pressure to be equalised around the periphery of the drill bit (10) and allows for some air flow from the end of the flange (28) between the channels (31) in the drill bit (10) to provide a curtain of air flow from the flange (28).
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公开(公告)号：EP0960261B1
公开(公告)日：2003-04-02
申请号：EP98901374.3
申请日：1998-01-30
IPC分类号： E21B29/06 , E21B7/06 , E21B12/04 , E21B10/62 , E21B17/10 , E21B10/08 , E21B10/46 , E21B10/50
CPC分类号： E21B10/567 , E21B7/061 , E21B10/006 , E21B10/08 , E21B10/46 , E21B10/50 , E21B10/60 , E21B10/62 , E21B12/04 , E21B17/1092 , E21B23/00 , E21B23/01 , E21B23/02 , E21B23/06 , E21B29/06 , E21B34/10 , E21B34/101 , E21B44/005 , E21B47/091 , E21B49/06
摘要： A tool for use in forming a lateral, which tool comprises a formation drill (525) which is provided with a protective layer (527), and a mill (520) for forming a window in casing, the arrangement being such that, in use, said protective layer (527) will inhibit damage to said formation drill (525) whilst said mill (520) forms a window in said casing.
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公开(公告)号：EP0066435A1
公开(公告)日：1982-12-08
申请号：EP82302641.4
申请日：1982-05-24
CPC分类号： E21B10/567 , E21B12/04
摘要： A rotary drill bit (10, 12) for drilling earth formations has a plurality of cutting elements (16) mounted on the head portion of the bit. The bit further includes a plurality of individual protrusions (20) projecting from the head portion more than the extension of the cutting element (16). The protrusions (20) are fabricated of a metal more readily abraded by the earth formation than any of the cutting elements (16). The protrusions (20) protect the cutting elements (16) during handling of the bit and entry of the bit into a borehole; and. the protectors (20) are abraded away to expose the cutting elements (16) during drilling.
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公开(公告)号：EP3714127A1
公开(公告)日：2020-09-30
申请号：EP18880468.6
申请日：2018-11-13
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