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1. 发明授权

EP2986804B1 DRILL BIT WITH SELF-ADJUSTING PADS 有权转让
公开(公告)号：EP2986804B1
公开(公告)日：2018-05-23
申请号：EP14785132.3
申请日：2014-04-17
申请人： Baker Hughes, a GE company, LLC
发明人： JAIN, Jayesh, R. , BILEN, Juan Miguel
IPC分类号： E21B10/62 , E21B10/02
CPC分类号： E21B10/62 , E21B7/064 , E21B10/08 , E21B10/20 , E21B10/42 , E21B10/54 , E21B10/633 , E21B17/1092 , E21B2010/622
摘要： A drill bit including a bit body and a pad. The pad extends from a retracted position to an extended position from a bit surface at a first rate and retracts from the extended position to a retracted position at a second rate that is less than the first rate.

2. 发明公开

EP2616624A4 IMPREGNATED DRILL BITS WITH INTEGRATED REAMERS 审中-公开
公开(公告)号：EP2616624A4
公开(公告)日：2018-03-14
申请号：EP11825630
申请日：2011-08-22
申请人： LONGYEAR TM INC
发明人： PEARCE CODY A , LAMBERT CHRISTIAN M , RUPP MICHAEL D
IPC分类号： E21B10/02 , E21B10/26 , E21B10/48
CPC分类号： E21B25/16 , E21B10/02 , E21B10/18 , E21B10/26 , E21B10/48 , E21B17/1092
摘要： Drilling tools include a bit crown and an integrated reamer. The bit crown and the integrated reamer can be configured with approximately equal drilling lives. The bit crown can be impregnated with abrasive cutting media and include one or more external flutes. The integrated reamer can be positioned at the base the bit crown and include one or more channels that align with one or more of the outer flutes. The channels can taper such that they increase in width as they extend away from the bit crown.

3. 发明公开

EP3042021A4 REAMER BLADES EXHIBITING AT LEAST ONE OF ENHANCED GAGE CUTTING ELEMENT BACKRAKES AND EXPOSURES AND REAMERS SO EQUIPPED 有权转让
标题翻译： REIBAHLEN MIT MINDESTENS EINEM SCHNEIDELEMENT MITERHÖHTENZINKEN UNDAUFSÄTZEN
公开(公告)号：EP3042021A4
公开(公告)日：2017-05-31
申请号：EP14842378
申请日：2014-09-05
申请人： BAKER HUGHES INC
发明人： MORENO MARIO II , ENTERLINE JAMES D
IPC分类号： E21B7/28 , E21B10/26 , E21B10/32
CPC分类号： E21B10/32 , E21B10/26 , E21B17/1092
摘要： A downhole tool configured to enlarge a borehole may include at least one blade extending laterally from a central portion of the tool. The one or more blades may each include a gage portion, and cutting elements comprising substantially circular cutting faces may be affixed to each of the one or more blades. Each of the one or more cutting elements may include a cutting edge comprising an arcuate peripheral cutting face portion for contacting the borehole. Cutting faces of at least one cutting element on a gage portion of the at least one blade may exhibit a cutting face back rake angle greater than a cutting face back rake angle of cutting elements on at least one other portion of the at least one blade.
摘要翻译：构造成扩大钻孔的井下工具可以包括从工具的中央部分侧向延伸的至少一个叶片。所述一个或多个刀片可各自包括标准部分，并且包括基本上圆形的切割面的切割元件可固定到所述一个或多个刀片中的每一个。一个或多个切割元件中的每一个可以包括切割边缘，切割边缘包括用于接触钻孔的弓形外围切割面部分。所述至少一个刀片的规格部分上的至少一个切割元件的切割面可以呈现比所述至少一个刀片的至少一个其他部分上的切割元件的切割面后倾角大的切割面后倾角。

4. 发明公开

EP2986804A4 DRILL BIT WITH SELF-ADJUSTING PADS 有权转让
标题翻译： BOHRMEISSEL MIT SELBSTEINSTELLENDEN AUFLAGEN
公开(公告)号：EP2986804A4
公开(公告)日：2016-12-28
申请号：EP14785132
申请日：2014-04-17
申请人： BAKER HUGHES INC
发明人： JAIN JAYESH R , BILEN JUAN MIGUEL
IPC分类号： E21B10/62 , E21B10/02
CPC分类号： E21B10/62 , E21B7/064 , E21B10/20 , E21B10/42 , E21B10/54 , E21B17/1092 , E21B2010/622
摘要： Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member.
摘要翻译：钻头包括钻头体和垫。垫以缩回位置从第一速度从钻头表面延伸到延伸位置，并以小于第一速率的第二速率从延伸位置缩回到缩回位置。

5. 发明公开

EP3077613A4 EXPANDABLE REAMER 有权
标题翻译： EXPANDIERBARE REIBAHLE
公开(公告)号：EP3077613A4
公开(公告)日：2016-12-21
申请号：EP14868423
申请日：2014-12-08
申请人： SERVICES PÉTROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS , SCHLUMBERGER TECHNOLOGY BV
发明人： JOHNSON ASHLEY BERNARD , HIRD JONATHAN ROBERT
IPC分类号： E21B7/28 , E21B10/32
CPC分类号： E21B10/32 , E21B7/28 , E21B17/1078 , E21B17/1092
摘要： An expandable reamer for a borehole has a plurality of support elements (202) distributed around a central axis of the tool with cutters (234, 236) and stabilising pads (250) on the support elements, arranged such that at least one of the support elements comprises at least one region comprising cutters and at least one support element comprises a stabilising pad having a front surface positioned to face the wall of the borehole. The reamer includes drive mechanism for expanding the support elements (202) radially outwardly from the central axis. The support elements differ in the presence or axial positions of stabilising pads (250) thereon such that at least one support element differs from at least one other support element in the presence or axial position of at least one stabilising pad. This arrangement allows the stabilising pads to be positioned at or close to full gauge, thereby reducing vibration.
摘要翻译：用于钻孔的可扩展铰刀具有多个在工具的中心轴线周围分布的支撑元件（202），其具有在支撑元件上的切割器（234,236）和稳定垫（250），其布置成使得至少一个支撑件元件包括至少一个包括切割器的区域，并且至少一个支撑元件包括具有定位成面对钻孔壁的稳定垫。铰刀包括用于从中心轴线径向向外扩展支撑元件（202）的驱动机构。支撑元件在其上的稳定垫（250）的存在或轴向位置不同，使得在至少一个稳定垫的存在或轴向位置中至少一个支撑元件与至少一个其它支撑元件不同。这种布置允许稳定垫定位在或接近全量规，从而减少振动。

6. 发明授权

EP2408996B1 DOWNHOLE DRILLING ASSEMBLY 有权
标题翻译：钻具组合作为空穴
公开(公告)号：EP2408996B1
公开(公告)日：2014-01-01
申请号：EP10712750.8
申请日：2010-03-19
申请人： Halliburton Energy Services, Inc.
发明人： DOWNIE, Andrew, McPherson , VITALE, Pascal, Michel , BOUSSI, Bachar
IPC分类号： E21B17/10 , E21B10/26
CPC分类号： E21B10/26 , E21B4/00 , E21B7/068 , E21B17/04 , E21B17/10 , E21B17/1078 , E21B17/1092

7. 发明公开

EP2038505A1 A PDC DRAG BIT 审中-公开
标题翻译： PDC-FRÄSMEISSEL
公开(公告)号：EP2038505A1
公开(公告)日：2009-03-25
申请号：EP07784643.4
申请日：2007-07-12
申请人： Omni Oil Technologies
发明人： BASSAL, Adel, A. , ZAKI, Magdr, M. , GHARIB, Hossam
IPC分类号： E21B10/00 , E21B10/26 , E21B10/42
CPC分类号： E21B10/602 , E21B17/1092
摘要： A drilling apparatus characterized in that it includes a drill bit adapted to be attached to a drilling string, the drilling string serving to rotate said drill bit and to provide gravitational force, so that the drill bit engages a rock face with rotational and gravitational forces, said drill bit adapted to include a means of receiving drilling fluid, said drill bit adapted to include a means of mounting cutting elements onto the outer surface of said drill bit, and whereby said drill bit comprises an ellipsoidal shape, whereby said ellipsoidal shape comprises a half elliptic portion at the forward end of said drill bit and a cylindrical gauging portion.

8. 发明公开

EP1735520A2 IMPROVEMENTS IN OR RELATING TO ROCK DRILLING EQUIPMENT 有权
标题翻译：岩石的改进钻孔或这方面
公开(公告)号：EP1735520A2
公开(公告)日：2006-12-27
申请号：EP05733053.2
申请日：2005-04-05
申请人： Halco Drilling International Limited
发明人： GREEN, Christopher J., c/o Halco Drilling Int. Ltd
IPC分类号： E21B4/14 , E21B21/12
CPC分类号： E21B4/14 , E21B10/38 , E21B17/1092 , E21B21/12
摘要： In a reverse circulation down-the-hole hammer assembly a having a axially extending central tube (30) for recovery of drilling debris, the central tube (30) has a downwardly facing abutment (32) and an upwardly facing upper end and is located axially in the hammer assembly by having the part thereof between the downwardly facing abutment and the upper end located between axially spaced complementary abutments, one of which fixed and the other of which is provided by a resiliently longitudinally displaceable member (42) within a casing part providing an upper end of the hammer assembly and which is removably retained in an adjoining part of the hammer assembly. The longitudinally displaceable member engages the upper end of the central tube and thus clamps the central tube in place.

9. 发明授权

EP1227214B1 Cutting structure for drill bit 有权
标题翻译：钻头的切削结构
公开(公告)号：EP1227214B1
公开(公告)日：2004-06-30
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

10. 发明授权

EP0733776B1 Rotary drag bit with pdc gauge bearing pads 失效
标题翻译：旋挖铣刀用聚晶金刚石刀片口径
公开(公告)号：EP0733776B1
公开(公告)日：2003-09-10
申请号：EP96301961.7
申请日：1996-03-21
申请人： CAMCO DRILLING GROUP LIMITED
发明人： Matthias, Terry R. , Hayward, John , Lamb, Haydn Richard
IPC分类号： E21B17/10 , E21B10/56
CPC分类号： E21B10/567 , E21B17/1092

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