专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

EP1174584B1 Asymmetric diamond impregnated drill bit 有权
标题翻译：不对称的孕镶金刚石钻头
公开(公告)号：EP1174584B1
公开(公告)日：2006-03-01
申请号：EP01117366.3
申请日：2001-07-18
申请人： SMITH INTERNATIONAL, INC.
发明人： Truax, David , Beaton, Timothy Paul
IPC分类号： E21B10/46 , E21B10/56
CPC分类号： E21B17/1092 , E21B10/26 , E21B10/46

52. 发明授权

EP0974730B1 Rotary dag bit 有权
标题翻译： Fräsmeissel
公开(公告)号：EP0974730B1
公开(公告)日：2004-09-22
申请号：EP99305259.6
申请日：1999-07-02
申请人： Camco International (UK) Limited
发明人： Roberts, Tom Scott , Jarvis, Clive
IPC分类号： E21B10/60 , E21B10/54 , E21B17/10
CPC分类号： E21B10/55 , E21B10/602 , E21B17/1092

53. 发明授权

EP1212511B1 METHOD OF MOUNTING A TSP 有权转让
标题翻译：程序安装茶匙
公开(公告)号：EP1212511B1
公开(公告)日：2003-10-22
申请号：EP01954158.0
申请日：2001-08-03
申请人： Camco International (UK) Limited
发明人： EVANS, Stephen Martin
IPC分类号： E21B10/46 , E21B17/10
CPC分类号： E21B17/1092 , E21B10/46
摘要： A method of applying a wear-resistant material to a surface of a downhole component for use in subsurface drilling comprises forming a plurality of bearing elements, applying a layer of an electrically conductive, less hard material to each bearing element, and then bonding each bearing element to the surface of the component by welding or brazing to the surface of the component a part of the surface of the bearing element which comprises said less hard material, wherein the layer is of thickness greater than 0.05 mm.

54. 发明公开

EP1227214A3 Cutting structure for drill bit 有权
标题翻译：钻头的切削结构
公开(公告)号：EP1227214A3
公开(公告)日：2003-03-19
申请号：EP01307913.2
申请日：2001-09-18
申请人： Camco International (UK) Limited
发明人： Barton Steven , Watson Dean Travers , Murdock Andrew
IPC分类号： E21B10/42
CPC分类号： E21B10/43 , E21B7/064 , E21B17/1092
摘要： A drill bit for drilling a borehole having a bit body with an axis of rotation, a leading face, and a plurality of blades upstanding from the leading face. At least one of the blades terminates in a gauge pad having a gauge surface arranged, in use, to face a wall of the borehole. The gauge surface being devoid of cutting elements and terminating at an end remote from the blade at a junction with a gauge pad end wall. The gauge pad carries a cutter having a face and a cutting edge located radially inward of the gauge surface, and the junction of the gauge surface and the gauge pad end wall crosses, radially, between the face of the cutter and the wall of the borehole. The gauge surface may be a substantially continuous surface, and may have at least one additional cutter located angularly between two adjacent blades of the drill bit.

55. 发明授权

EP0707131B1 Rotary drill bit with rotatably mounted gauge section for bit stabilisation 失效
标题翻译：一种旋转钻头具有可旋转地附接到所述量规部Meisselstabilisierung
公开(公告)号：EP0707131B1
公开(公告)日：2002-12-11
申请号：EP95306939.0
申请日：1995-09-29
申请人： CAMCO DRILLING GROUP LIMITED
发明人： Newton, Alex , Fuller, John M. , Murdock, Andrew , Sarik, Daniel J.
IPC分类号： E21B10/56 , E21B10/08 , E21B10/00 , E21B17/10
CPC分类号： E21B17/1092 , E21B10/00 , E21B10/602 , E21B17/1064

56. 发明公开

EP1174584A3 Asymmetric diamond impregnated drill bit 有权
标题翻译：不对称的孕镶金刚石钻头
公开(公告)号：EP1174584A3
公开(公告)日：2002-11-27
申请号：EP01117366.3
申请日：2001-07-18
申请人： SMITH INTERNATIONAL, INC.
发明人： Truax, David , Beaton, Timothy Paul
IPC分类号： E21B10/46 , E21B10/56
CPC分类号： E21B17/1092 , E21B10/26 , E21B10/46
摘要： A drill bit including a bit body and a plurality of blades formed in the bit body. The blades are formed, at least in part, from a base matrix material that on one embodiment is impregnated with abrasive particles. One side of the bit is formed, with respect to its axis of rotation, to a smaller radius than the opposite side of the bit. The asymmetry of the bit enables the bit to drill a larger diameter hole than a pass through diameter of the bit. The opposite side defines a contact angle between the bit and a formation. In one embodiment, the contact angle is at least 140 degrees.. In one embodiment, a plurality of inserts may be located on the blades to provide gage protection. In another embodiment, the bit may also include a gage sleeve that helps keep the bit stabilized in the wellbore.

57. 发明公开

EP1174584A2 Asymmetric diamond impregnated drill bit 有权
标题翻译：不对称金刚石浸渍钻头
公开(公告)号：EP1174584A2
公开(公告)日：2002-01-23
申请号：EP01117366.3
申请日：2001-07-18
申请人： SMITH INTERNATIONAL, INC.
发明人： Truax, David , Beaton, Timothy Paul
IPC分类号： E21B10/46
CPC分类号： E21B17/1092 , E21B10/26 , E21B10/46
摘要： A drill bit including a bit body and a plurality of blades formed in the bit body. The blades are formed, at least in part, from a base matrix material that on one embodiment is impregnated with abrasive particles. One side of the bit is formed, with respect to its axis of rotation, to a smaller radius than the opposite side of the bit. The asymmetry of the bit enables the bit to drill a larger diameter hole than a pass through diameter of the bit. The opposite side defines a contact angle between the bit and a formation. In one embodiment, the contact angle is at least 140 degrees.. In one embodiment, a plurality of inserts may be located on the blades to provide gage protection. In another embodiment, the bit may also include a gage sleeve that helps keep the bit stabilized in the wellbore.
摘要翻译：一种钻头，包括钻头本体和形成在钻头本体中的多个刀片。刀片至少部分由基体材料形成，在一个实施例中，基体材料用磨料颗粒浸渍。钻头的一侧相对于其旋转轴线形成为比钻头的相对侧更小的半径。钻头的不对称性使钻头能钻出比钻头直径更大的孔。相对侧限定钻头和地层之间的接触角。在一个实施例中，接触角为至少140度。在一个实施例中，多个插入件可以位于刀片上以提供量具保护。在另一个实施例中，钻头还可以包括有助于保持钻头在井眼中稳定的钻头套筒。

58. 发明公开

EP1131531A2 ROTARY CONE DRILL BIT HAVING A BIT BODY WITH INTEGRAL STABILIZERS 审中-公开
标题翻译：切割孔与主体INTEGRATED STABILIZERS
公开(公告)号：EP1131531A2
公开(公告)日：2001-09-12
申请号：EP99962728.4
申请日：1999-11-10
申请人： Dresser Industries, Inc.
发明人： DAHLEM, James, S. , KNECHT, Karl, Don
IPC分类号： E21B10/00
CPC分类号： E21B17/1092
摘要： A rotary cone drill bit for forming a borehole having a bit body with a plurality of stabilizer pads formed as integral components thereof. The bit body includes an upper portion adapted for connection to a drill string. A number of support arms preferably extend from a lower portion of the bit body. A number of cutter cone assemblies equal to the number of support arms are rotatably mounted on respective support arms and project generally downwardly and inwardly from each support arm. The stabilizer pads project radially outward from the bit body and are disposed intermediate adjacent support arms. Both the stabilizer pads and the support arms preferably have surfaces that form a fluid flow channel therebetween to direct drilling fluids and cuttings to flow upward in the borehole. Layer of hardfacing may be disposed on selected portions of each stabilizer pad. One or more inserts may be installed in selected portions of each stabilizer pad.

59. 发明公开

EP0872625A3 Rotary drill bits with nozzles 失效
标题翻译：旋转钻头带喷嘴
公开(公告)号：EP0872625A3
公开(公告)日：2000-04-05
申请号：EP98302826.7
申请日：1998-04-09
申请人： Camco International (UK) Limited
发明人： Newton, Alex , Tomczak, Michael , Taylor, Steven , Murdock, Andrew , Clegg, John Martin
IPC分类号： E21B10/60 , E21B10/54 , E21B10/26
CPC分类号： E21B10/55 , E21B10/003 , E21B10/26 , E21B10/60 , E21B10/602 , E21B17/1092
摘要： A rotary drill bit for connection to a drill string and for drilling boreholes in subsurface formations comprises a bit body having a leading face and a gauge region (191). Cutting elements 194 are mounted along blades (192) which extend outwardly on the leading face of the bit body so as to define fluid channels (200) between the blades. Nozzles (212) are mounted in the bit body for supplying drilling fluid to the channels for cleaning and cooling the cutting elements. There is an opening (206) in each circumferentially alternate channel (200), each of which openings leads into an enclosed passage (208) which passes internally through the bit body to a respective outlet. A bearing surface (210) is disposed at a portion of the gauge region radially outwardly from each opening, and each circumferentially alternate channel which is not provided with an opening leading to an internal passage has at its outer extremity a junk slot (202) extending through the gauge region.

60. 发明公开

EP0960260A1 TOOL FOR MAKING AN OPENING IN A TUBULAR IN A WELLBORE 失效
标题翻译：工具生产开幕管道中的一个洞
公开(公告)号：EP0960260A1
公开(公告)日：1999-12-01
申请号：EP98901373.0
申请日：1998-01-30
申请人： Weatherford/Lamb Inc.
发明人： HAUGEN, David, Michael , MCCLUNG, Guy, LaMont, III
IPC分类号： E21B7 , E21B10 , E21B12 , E21B23 , E21B29 , E21B49
CPC分类号： E21B17/1092 , E21B7/061 , E21B10/46 , E21B10/50 , E21B10/60 , E21B12/04 , E21B23/00 , E21B23/01 , E21B23/02 , E21B29/06 , E21B49/06
摘要： A tool for forming a window in a casing (C), with a starting mill (520) having a nose which comprises cutting apparatus (525) covered by a protective layer (527). The protective layer acts as a bearing as the mill (520) travels down the whipstock (505) and helps urge the milling material (522) into the casing to form the window. The protective layer (527) is eroded as the mill (520) travels down the whipstock and the cutting apparatus (525) is exposed to allow the cutting apparatus (525) to cut through the casing and into the formation beyond.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式