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1. 发明公开

EP1012438A1 GAGE PAD ARRANGEMENTS FOR ROTARY DRILL BITS 审中-公开
标题翻译：申请之安排旋转钻头CALIBER
公开(公告)号：EP1012438A1
公开(公告)日：2000-06-28
申请号：EP98944704.0
申请日：1998-09-03
申请人： BAKER HUGHES INCORPORATED
发明人： SPAAR, John, R. , NORRIS, James, A. , BEUERSHAUSEN, Christopher, C. , OHANIAN, Michael, P. , PESSIER, Rudolph, C., O. , ILLERHAUS, Roland , LUND, Jeffrey, B. , DOSTER, Michael, L. , DYKSTRA, Mark, W.
IPC分类号： E21B17/10 , E21B10/46
CPC分类号： E21B17/1092 , E21B10/46
摘要： A rotary bit drill bit of the rock bit or drag bit type suitable for directional drilling. The bit includes a bit body from carrying cutting structure on a leading end thereof. The body carries at least one set of gage pads, above which another set of gage pads may be either longitudinally spaced or rotationally spaced, or both. Longitudinally leading edges of the gage pads may carry cutting structure for smoothing the sidewall of the borehole. Cutting structure may likewise be disposed on the trailing ends of the gage pads to provide an up-drill capability to facilitate removal of the bit from the borehole. The gage pads provide enhanced bit stability and reduced side cutting tendencies, as well as (in the case of rock bits) reducing lateral loading on the rotatable cutters and associated bearing structure and seals. The invention also has utility in bits not specifically designed for directional drilling.

2. 发明授权

EP2198111B1 CUTTING STRUCTURES FOR EARTH-BORING DRILL BITS 有权
标题翻译：切割结构地球无聊
公开(公告)号：EP2198111B1
公开(公告)日：2012-08-01
申请号：EP08836124.1
申请日：2008-10-01
申请人： Baker Hughes Incorporated
发明人： MCCLAIN, Eric, E. , DOSTER, Michael, L. , ISBELL, Matt , DEGEORGE, Jarod , THOMAS, John, Clayton , JURICA, Chad, T.
IPC分类号： E21B10/48 , E21B29/06 , E21B10/43
CPC分类号： E21B10/43 , E21B10/485 , E21B29/06
摘要： A drill bit (12) includes a bit body (14) having a face on which two different types of cutters are disposed (32, 36), the first type being cutting elements suitable for drilling (32) at least one subterranean formation and the second type (36) being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components as well as cement. Methods of forming earth-boring tools are also disclosed.

3. 发明公开

EP2118430A2 ROTARY DRAG BIT 审中-公开
标题翻译：旋转拖动位
公开(公告)号：EP2118430A2
公开(公告)日：2009-11-18
申请号：EP08724767.2
申请日：2008-01-24
申请人： BAKER HUGHES INCORPORATED
发明人： SNELL, Lane, E. , GAVIA, David , HOINES, Jason, E. , HANFORD, Ryan, J. , ISBELL, Matthew, R. , MCCLAIN, Eric, E. , DOSTER, Michael, L.
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit (110) includes a primary cutter row (143) comprising at least one primary' cutter (11) and a multiple backup cutter, group (153). The multiple backup cutter group comprises a first and second trailing cutter row (154, 155), each comprising at least one cutter positioned to follow the at least one primary cutter. The rotary drag bit life is extended by the multiple backup cutter group, making the bit more durable and extending the life of the cutters. Further, the cutters of the multiple backup cutter group are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are provided.
摘要翻译：旋转刮刀钻头（110）包括主切割器行（143），该主切割器行（143）包括至少一个主切割器（11）和多备用刀具组（153）。该多重备份切割器组包括第一和第二尾随切割器行（154,155），每个包括至少一个切割器，该至少一个切割器被定位成跟随该至少一个主切割器。旋转式刮刀的使用寿命由多重备份切刀组延长，使钻头更耐用，延长了刀具的使用寿命。此外，多个备用切割器组的切割器被配置为选择性地接合正在钻探的地下地层材料，从而提供改善的钻头寿命并减小切割器上的应力。提供了旋转刮刀的其他实施例。

4. 发明公开

EP2118432A1 ROTARY DRAG BIT AND METHODS THEREFOR 审中-公开
标题翻译：旋转拖动钻头及其方法
公开(公告)号：EP2118432A1
公开(公告)日：2009-11-18
申请号：EP08728351.1
申请日：2008-01-25
申请人： BAKER HUGHES INCORPORATED
发明人： MCCLAIN, Eric, E. , GAVIA, David , SNELL, Lane, E. , HOINES, Jason, E. , ISBELL, Matthew, R. , DOSTER, Michael, L.
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit includes a primary cutter row (141) comprising at least one primary cutter, and at least two additional cutters configured relative to one another (19, 20, 21). In one embodiment, the cutters are backup cutters of a cutter group located in respective first and second trailing cutter rows (153), oriented relative to one another, and positioned to substantially follow the at least one primary cutter The rotary drag bit life is extended by the backup cutter group, making the bit more durable and extending the life of the cutters In other of the embodiments, the cutters are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters Still other embodiments of rotary drag bits include backup cutter configurations having different backrake angles and siderake angles, including methods therefor.
摘要翻译：旋转刮刀钻头包括包括至少一个主切割器的主切割器行（141）和相对于彼此（19,20,21）构造的至少两个另外的切割器。在一个实施例中，切割器是位于相应的第一和第二拖尾切割器排（153）中的切割器组的后备切割器，其相对于彼此定向并且定位成基本跟随至少一个主切割器。旋转拖拉钻头寿命延长通过备用刀具组使钻头更耐用并且延长刀具的使用寿命。在其他实施例中，刀具被构造成选择性地接合正在钻探的地下地层材料，从而提供改善的钻头寿命并减小刀具上的应力。旋转刮刀钻头的实施例包括具有不同的后倾角和侧倾角的备用切割器配置，包括其方法。

5. 发明公开

EP2111494A2 ROTARY DRAG BIT AND METHODS THEREFOR 审中-公开
标题翻译：旋转拖动钻头及其方法
公开(公告)号：EP2111494A2
公开(公告)日：2009-10-28
申请号：EP08728331.3
申请日：2008-01-25
申请人： BAKER HUGHES INCORPORATED
发明人： DOSTER, Michael, L.
IPC分类号： E21B10/43
CPC分类号： E21B10/55 , E21B10/43
摘要： A rotary drag bit includes a bit body having a face and an axis, a plurality of blades extending radially and longitudinally outward from the face, and at least one split cutter set. The split cutter set includes a plurality of cutters, where at least two of the cutters are primary and 'or kerfing cutters located on different blades of the plurality of blades. The pair of primary and/or kerfing cutters of the split cutter set may be located substantially the same radial distance from a center line, or axis of rotation, of the bit and located at substantially the same longitude, or elevation, on the bit as one another, or follow substantially the same rotational or helical cutting path as each other. In addition, at least one backup cutter may be located substantially the same radial distance from a center line, or axis of rotation, of the bit and located at substantially the same longitude, or elevation, on the bit as one or both primary and/or kerfing cutters, or follow substantially the same rotational or helical path as one or both of the primary and/or kerfing cutters. The cutters of a split cutter set may be configured and oriented to provide improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are also provided, including methods therefor.
摘要翻译：旋转刮刀钻头包括具有面和轴的钻头本体，从该面沿径向和纵向向外延伸的多个叶片，以及至少一个分割式切割器组。分割切割器组包括多个切割器，其中至少两个切割器是主刀片和位于多个刀片的不同刀片上的切口刀。分体式刀具组的一对主刀刃和/或切口刀刃可以位于与钻头的中心线或旋转轴线基本相同的径向距离处，并且位于钻头上的基本上相同的经度或高度处彼此之间或基本上与彼此相同的旋转或螺旋切割路径。另外，至少一个备用刀具可以位于钻头的中心线或旋转轴线的大致相同的径向距离处，并且位于钻头上的基本上相同的经度或高度处，作为一个或两个主要和/ 或切口刀具，或者遵循与主切刀和/或切口刀中的一个或两个基本相同的旋转或螺旋路径。分体式刀具组的刀具可以被构造和定向以提供改进的刀片寿命并减小刀具上的应力。还提供了旋转刮刀的其他实施例，包括其方法。

6. 发明公开

EP2066864A1 METHODS FOR APPLYING WEAR-RESISTANT MATERIAL TO EXTERIOR SURFACES OF EARTH-BORING TOOLS AND RESULTING STRUCTURES 审中-公开
标题翻译：程序用于应用VERSCHLEISSRESISTENTEN物料对外表面上钻地工具和产生的结构
公开(公告)号：EP2066864A1
公开(公告)日：2009-06-10
申请号：EP07837540.9
申请日：2007-08-30
申请人： BAKER HUGHES INCORPORATED
发明人： OVERSTREET, James, L. , DOSTER, Michael, L. , MORRIS, Mark, E. , GILMORE, Kenneth, E. , WELCH, Robert, M. , ROBERTS, Danielle, V.
IPC分类号： E21B10/00
CPC分类号： E21B10/54 , E21B10/43
摘要： Earth-boring tools include wear-resistant materials disposed in at least one recess formed in an exterior surface of a body thereof. Exposed surfaces of the wear-resistant material are substantially level with exterior surfaces of the body adjacent the wear-resistant material. In some embodiments, recesses may be formed in formation-engaging surfaces of blades of earth-boring rotary tools, adjacent one or more inserts secured to bodies of earth-boring tools, or adjacent one or more cutting elements secured to bodies of earth-boring tools. Methods of forming earth-boring tools include filling one or more recesses formed in an exterior surface of a body with wear-resistant material and causing exposed surfaces of the wear-resistant material to be substantially level with the exterior surface of the body.

7. 发明公开

EP2844819A1 EARTH-BORING TOOLS HAVING CUTTING ELEMENTS WITH CUTTING FACES EXHIBITING MULTIPLE COEFFICIENTS OF FRICTION, AND RELATED METHODS 有权转让
标题翻译：与切割元件与切割面具有多摩擦系数和相关方法ERDBOHRWERKZEUG
公开(公告)号：EP2844819A1
公开(公告)日：2015-03-11
申请号：EP13785153.1
申请日：2013-05-01
申请人： Baker Hughes Incorporated
发明人： BILEN, Juan, Miguel , DIGIOVANNI, Anthony, A. , LIN, Chih, C. , PATEL, Suresh, G. , PESSIER, Rudolf, Carl , SCOTT, Danny, E. , DOSTER, Michael, L.
IPC分类号： E21B10/46
CPC分类号： B24D18/009 , B23K26/0078 , B23K26/3584 , B23P15/28 , E21B10/567 , E21B10/5676 , E21B2010/566
摘要： An earth-boring tool having at least one cutting element with a multi-friction cutting face provides for the steering of formation cuttings as the cuttings slide across the cutting face. The multi-friction cutting element includes a diamond table bonded to a substrate of superabrasive material. The diamond table has a cutting face formed thereon with a cutting edge extending along a periphery of the cutting face. The cutting face has a first area having an average surface finish roughness less than an average surface finish roughness of a second area of the cutting face, the two areas separated by a boundary having a proximal end proximate a tool crown and a distal end remote from the tool crown.
摘要翻译：具有与多摩擦切削面的至少一个切割元件的钻地工具提供用于地层钻屑的转向为钻屑越过切削面滑动。多摩擦切割元件包括结合到超级磨料材料的基板的金刚石台面。金刚石台具有带切削刃沿切削面的外周延伸形成在其上的切削面。切削面具有平均表面光洁度粗糙面的第一面积小于在所述切削面的第二区域的平均表面光洁度粗糙度，由具有近端的边界分开的两个区域邻近的工具冠部和从远端远程该工具冠。

8. 发明授权

EP2220330B1 DRILL BITS AND TOOLS FOR SUBTERRANEAN DRILLING 有权
标题翻译：位和工具地下钻
公开(公告)号：EP2220330B1
公开(公告)日：2012-09-12
申请号：EP08845360.0
申请日：2008-10-29
申请人： Baker Hughes Incorporated
发明人： GREEN, James, C. , DOSTER, Michael, L. , HOINES, Jason, E. , WELCH, Robert, M. , ROBERTS, Danielle, V.
IPC分类号： E21B10/42 , E21B10/43
CPC分类号： E21B10/42 , E21B10/43

9. 发明公开

EP2198111A2 CUTTING STRUCTURES FOR EARTH-BORING DRILL BITS 有权
标题翻译：切割结构地球无聊
公开(公告)号：EP2198111A2
公开(公告)日：2010-06-23
申请号：EP08836124.1
申请日：2008-10-01
申请人： Baker Hughes Incorporated
发明人： MCCLAIN, Eric, E. , DOSTER, Michael, L. , ISBELL, Matt , DEGEORGE, Jarod , THOMAS, John, Clayton , JURICA, Chad, T.
IPC分类号： E21B10/48 , E21B29/06 , E21B10/43
CPC分类号： E21B10/43 , E21B10/485 , E21B29/06
摘要： A drill bit (12) includes a bit body (14) having a face on which two different types of cutters are disposed (32, 36), the first type being cutting elements suitable for drilling (32) at least one subterranean formation and the second type (36) being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components as well as cement. Methods of forming earth-boring tools are also disclosed.

10. 发明公开

EP1957750A1 METHODS FOR OPTIMIZING EFFICIENCY AND DURABILITY OF ROTARY DRAG BITS AND ROTARY DRAG BITS DESIGNED FOR OPTIMAL EFFICIENCY AND DURABILITY 审中-公开
标题翻译：法在合理旋挖钻机头，并为获得最佳的性能和寿命业绩旋挖钻机头的性能和寿命
公开(公告)号：EP1957750A1
公开(公告)日：2008-08-20
申请号：EP06827693.0
申请日：2006-11-08
申请人： Baker Hughes Incorporated
发明人： GAVIA, David , OLDHAM, Jack, Thomas , GEORGE, Mathews , DOSTER, Michael, L.
IPC分类号： E21B41/00 , E21B10/00
CPC分类号： E21B10/54 , E21B10/00
摘要： A method for evaluating existing drill bits and drill bit designs includes measuring several desired characteristics of a bit, including the wear experienced in drilling a formation, such as an actual formation or a simulated formation or a laboratory test fixture. A computer model may be used to evaluate the work-force and/or the sliding-wear rates that cutting elements of the bit experience as compared with the rate-of-penetration and/or durability of the bit. This information may be used to design a new drill bit, which may involve modification of the cutting elements {e.g., moving the location, volume (size and shape) or number of cutting elements from areas of the bit that receive lower work-force and sliding-wear rates to those areas that experience relatively greater work-force and sliding wear-rates. This may permit the cutting elements to be oriented more aggressively relative to a formation to be drilled. Other parameters that may be optimized include the bit profile, blade count, hydraulics, or the like.

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