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1. 发明公开

EP3282083A1 DURABLE ROCK BIT FOR BLAST HOLE DRILLING 有权转让
标题翻译：用于爆破钻孔的耐用岩石钻头
公开(公告)号：EP3282083A1
公开(公告)日：2018-02-14
申请号：EP17185066.2
申请日：2017-08-07
申请人： Varel International, Ind., L.P.
发明人： Beavers, Tony Jack , Kongamnach, Amnach
IPC分类号： E21B10/18 , E21B10/08 , E21B10/16
CPC分类号： E21B10/23 , E21B10/08 , E21B10/16 , E21B10/18 , E21B10/50 , E21B10/61
摘要： A rock bit (1) for blast hole drilling includes: a bit body (2) having a coupling (5) formed at an upper end thereof, a plurality of lower legs (6a), a dome (7) formed between the legs, and a bore formed through the coupling and the dome; a plurality of skirts (12a), each skirt covering a gap formed between adjacent legs and each skirt mounted to edges of adjacent legs; a plurality of roller cones (3a), each rotary cone rotatably mounted to a respective bearing shaft (8b) of a respective leg; a row of gage cutters (10g) mounted to each roller cone; a row of inner cutters (10a,10b) mounted to each roller cone; one or more nose cutters (10n) mounted to each roller cone; and a center jet (4) secured in the bore. Each cutter is an insert.
摘要翻译：一种用于炮孔钻孔的岩石钻头（1）包括：钻头本体（2），其具有形成在其上端的联接件（5），多个下腿（6a），形成在所述腿之间的拱顶（7）以及穿过联接器和圆顶形成的孔; 多个裙部（12a），每个裙部覆盖在相邻腿部之间形成的间隙，每个裙部安装到相邻腿部的边缘; 多个滚子圆锥体（3a），每个旋转圆锥体可旋转地安装到相应支腿的相应支承轴（8b）上; 一排量规刀具（10g）安装在每个牙轮上; 一排安装在每个牙轮上的内剃刀（10a，10b）安装在每个牙轮上的一个或多个鼻切刀（10n）和固定在孔中的中心射流（4）。每个刀具都是一个刀片。

2. 发明授权

EP2594729B1 COMPOSITE DRILL BIT 有权
标题翻译：复合钻头
公开(公告)号：EP2594729B1
公开(公告)日：2017-09-06
申请号：EP11806308.0
申请日：2011-07-15
申请人： Southwest Petroleum University
发明人： YANG, Ying Xin , CHEN, Lian , LIN, Min , PEI, Zhu , REN, Hai Tao
IPC分类号： E21B10/14 , E21B10/16 , E21B10/50
CPC分类号： E21B10/16 , E21B10/14 , E21B10/20 , E21B10/50

3. 发明公开

EP2594729A1 COMPOSITE DRILL BIT 有权
标题翻译：复合钻头
公开(公告)号：EP2594729A1
公开(公告)日：2013-05-22
申请号：EP11806308.0
申请日：2011-07-15
申请人： Southwest Petroleum University
发明人： YANG, Ying Xin , CHEN, Lian , LIN, Min , PEI, Zhu , REN, Hai Tao
IPC分类号： E21B10/14 , E21B10/16 , E21B10/50
CPC分类号： E21B10/16 , E21B10/14 , E21B10/20 , E21B10/50
摘要： A composite drill bit comprises: a drill bit body (1), a scraping-wheel (2), the drill bit body (1) further comprises a bit leg (3). The scraping-wheel (2) is mounted for rotation on the corresponding journal (6) of the bit leg (3), an outer-ring (4) is deployed on the scraping-wheel (2), wherein: the angular deflection α of the scraping-wheel (2) is in the range of 20° ≤ | α | ≤ 90°, the fixed cutting unit (8) with fixed cutters (8a) fixed thereon is deployed on the drill bit body (1). In the present invention, cutters on the scraping-wheel break rock by means of successive scraping, forming a cross-cutting area on the bottomhole accompanied by the cutters on the fixed cutting unit, thus achieving high rock-breaking efficiency, even wear, high cooling performance, and a longer service life for the cutters, bearings and the drill bit.
摘要翻译：一种复合钻头，包括：钻头体（1），刮轮（2），钻头体（1）还包括钻头腿（3）。所述刮轮（2）安装成在所述钻头腿（3）的相应轴颈（6）上旋转，在所述刮轮（2）上部署外环（4），其中：所述角偏转α （2）的范围在20°≤|α|的范围内 ≤90°时，在钻头体（1）上部署固定有切割器（8a）的固定切割单元（8）。在本发明中，刮轮上的刀具通过连续刮削破碎岩石，在固定的切割单元上配合刀具在底孔上形成横切区域，从而实现高的破岩效率，均匀的磨损，高的冷却性能以及刀具，轴承和钻头的更长使用寿命。

4. 发明授权

EP2038506B1 CUTTING STRUCTURE FOR EARTH-BORING BIT TO REDUCE TRACKING 有权
标题翻译：切割结构减小钻地来追踪
公开(公告)号：EP2038506B1
公开(公告)日：2011-07-13
申请号：EP07777303.4
申请日：2007-05-29
申请人： BAKER HUGHES INCORPORATED
发明人： FELDERHOFF, Floyd , ISBELL, Matthew, R. , PESSIER, Rudolf, C.
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： An earth boring bit has cutting elements arranged to avoid tracking. The bit has a bit body having a bit axis of rotation. First, second and third cones are rotatably mounted to the bit body, each of the cones having a plurality of rows of cutting elements including a heel row and an adjacent row. The heel row of the first cone has at least equal the number of cutting elements as the heel rows of the other cones. The adjacent row of the second cone has at least 90 percent as many cutting elements as the heel row of the first cone. The heel row of the third cone has a pitch that is in the range from 20-50% greater than the heel rows of the first cone.

5. 发明公开

EP2318638A2 BIT CONE WITH HARDFACED NOSE 审中-公开
标题翻译： BOHRKEGEL表面硬化NOSE
公开(公告)号：EP2318638A2
公开(公告)日：2011-05-11
申请号：EP09807332.3
申请日：2009-08-14
申请人： Baker Hughes Incorporated
发明人： FELDERHOFF, Floyd, C. , FREEMAN, Mark, A. , MASSEY, Alan, J. , GILMORE, Kenneth, E. , STANFIELD, Glen
IPC分类号： E21B10/42 , E21B10/46 , E21B10/50
CPC分类号： E21B10/50 , E21B10/16
摘要： A drill bit for drilling a wellbore, the drill bit having a cutter which has tungsten carbide inserts and a spear point. The spear point has a neck that joins a smooth portion of the cutter and blades that extend from the neck and converge to an apex. The blades define valleys or spaces between them. A layer of hardfacing is applied to the entire spear point including the interim spaces and the neck.

6. 发明公开

EP2297423A2 ANTI-TRACKING FEATURE FOR ROCK BITS 审中-公开
标题翻译：反跟踪功能对于凿岩机
公开(公告)号：EP2297423A2
公开(公告)日：2011-03-23
申请号：EP09735461.7
申请日：2009-04-21
申请人： Baker Hughes Incorporated
发明人： BUSKE, Robert, J. , OVERSTREET, James, L. , PESSIER, Rudolf, Carl
IPC分类号： E21B10/16 , E21B10/43
CPC分类号： E21B10/16
摘要： The harmful effects of tracking are reduced for a drill bit having roller cones (29) with at least one of the outermost rows (51) of active teeth (35) containing one or more teeth (35) having a height (65) that does not extend to the height (67) of at least one of the outermost rows on another roller cone on the bit. The crest (63) on this tooth (35) may have a length (58) in a circumferential direction that is wider than an overall width (69) of the tooth (35) in the outer to inner direction. The invention may be used on any cutter row, not just the outermost row (51). The design may be used on a different roller cone or row, or more than one cutter row. The anti-tracking feature may be located between the leading and trailing edges (201) of the tooth (201) on one or more roller cones.

7. 发明公开

EP2010746A1 HIGH DENSITY ROW ON ROLLER CONE BIT 有权
标题翻译：辊子锥上的高密度行
公开(公告)号：EP2010746A1
公开(公告)日：2009-01-07
申请号：EP07754623.2
申请日：2007-04-03
申请人： BAKER HUGHES INCORPORATED
发明人： CEPEDA, Karlos, B. , BUSKE, Robert, J. , OVERSTREET, James, L. , PESSIER, Rudolph, C.
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： An earth-boring bit has a high density row (49) on one of its cones (31). Each cone has a nose area and a gage area with a heel row (47) of teeth at the gage area. One of the cones has a farther intermediate row (43) of teeth and another one of the cones has a closer intermediate row (37) of teeth. The remaining cone has a high density row of teeth (32), which is located closer to the axis of rotation of the bit than the farther intermediate row and farther from the axis of rotation of the bit than the closer intermediate row. The high density row has a smaller pitch between crests of the teeth than the closer and farther intermediate rows. The smaller pitch provides more teeth in the high density row than in the closer intermediate row and the farther intermediate row.
摘要翻译：钻地钻头在其锥体（31）的一个上具有高密度排（49）。每个锥体都有一个鼻部区域和一个测量区域，在测量区域有一排齿（47）。其中一个锥体具有更远的中间排（43），另一个锥体具有更接近的中间排（37）的齿。剩余的锥体具有高密度的一排齿（32），该齿排位于比中间行更靠近钻头的旋转轴线的位置，并且比钻头的中间行更靠近钻头的旋转轴线。高密度排在齿的齿顶之间的间距比较近和较远的中间排小。较小的节距在高密度排中比在较接近的中间排和较远的中间排中提供更多的齿。

8. 发明授权

EP1112433B1 Roller cone drill bit, method of designing the same and rotary drilling system 有权
标题翻译：旋转钻头相关联的设计方法和旋转钻井
公开(公告)号：EP1112433B1
公开(公告)日：2004-01-14
申请号：EP99945375.6
申请日：1999-08-31
申请人： Halliburton Energy Services, Inc.
发明人： CHEN, Shilin
IPC分类号： E21B10/16
CPC分类号： E21B10/16 , E21B10/08

9. 发明公开

EP1097288A1 ROTARY CONE DRILL BIT WITH MACHINED CUTTING STRUCTURE AND METHOD 有权
标题翻译：切割孔配机PROCESSED切削结构和方法
公开(公告)号：EP1097288A1
公开(公告)日：2001-05-09
申请号：EP99933943.5
申请日：1999-07-09
申请人： Dresser Industries Inc.
发明人： SAXMAN, William, C.
IPC分类号： E21B10/16 , E21B10/50 , B23P15/28
CPC分类号： E21B10/50 , E21B10/16
摘要： A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure.

10. 发明授权

EP0723066B1 Earth-boring bit with improved cutting structure 失效
标题翻译：具有改善的切削结构的钻头
公开(公告)号：EP0723066B1
公开(公告)日：1999-07-07
申请号：EP96100576.6
申请日：1996-01-16
申请人： BAKER HUGHES INCORPORATED
发明人： Scott, Danny E. , Grimes, Robert E. , Isbell, Matthew R.
IPC分类号： E21B10/16 , E21B10/52
CPC分类号： E21B17/1092 , E21B10/16 , E21B10/52

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