专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP0978627B1 A method of determining characteristics of a rotary drag-type drill bit 有权
标题翻译：用于确定旋转钻井的特性Fräsmeissels方法
公开(公告)号：EP0978627B1
公开(公告)日：2001-11-28
申请号：EP99305764.5
申请日：1999-07-21
申请人： Camco International (UK) Limited
发明人： Murdock, Andrew , Taylor, Malcolm Roy
IPC分类号： E21B10/00 , E21B10/46 , E21B10/56
CPC分类号： E21B10/46 , E21B10/00

2. 发明公开

EP0978627A2 A method of determining characteristics of a rotary drag-type drill bit 有权
标题翻译：一种确定旋转拖式钻头特征的方法
公开(公告)号：EP0978627A2
公开(公告)日：2000-02-09
申请号：EP99305764.5
申请日：1999-07-21
申请人： Camco International (UK) Limited
发明人： Murdock, Andrew , Taylor, Malcolm Roy
IPC分类号： E21B10/00
CPC分类号： E21B10/46 , E21B10/00
摘要： A method of determining characteristics of a rotary drag-type drill bit comprises the steps of determining the shape and location of a datum profile (26, 43) and a reference profile (27, 44) located inwardly ofthe datum profile (26, 43), and ascertaining a volume of cutting structure material located between the datum and reference profiles (26, 27, 43, 44).
摘要翻译：确定旋转拖曳式钻头特征的方法包括以下步骤：确定位于基准轮廓（26,43）内部的基准轮廓（26,43）和基准轮廓（27,44）的形状和位置; 以及确定位于基准轮廓和基准轮廓（26,27,43,44）之间的切割结构材料的体积。

3. 发明授权

EP0884449B1 Rotary drill bits 失效
标题翻译：旋转钻头
公开(公告)号：EP0884449B1
公开(公告)日：2002-08-28
申请号：EP98304500.6
申请日：1998-06-08
申请人： Camco International (UK) Limited
发明人： Taylor, Malcolm Roy
IPC分类号： E21B10/54
CPC分类号： E21B10/55

4. 发明公开

EP1081119A1 Cutting elements and methods of manufacture thereof 有权
标题翻译： Schneidelemente und deren Herstellungsverfahren
公开(公告)号：EP1081119A1
公开(公告)日：2001-03-07
申请号：EP00305411.1
申请日：2000-06-28
申请人： Camco International (UK) Limited
发明人： Griffin, Nigel Dennis , Taylor, Malcolm Roy
IPC分类号： C04B37/02 , E21B10/56 , B23B27/14
CPC分类号： E21B10/43 , C04B35/645 , C04B37/021 , C04B37/025 , C04B2237/086 , C04B2237/363 , C04B2237/401 , C04B2237/68 , C04B2237/76 , C04B2237/86 , E21B10/5676 , E21B10/573 , Y10T428/30
摘要： A cutting element for a rotary drill bit includes at least one insert (20) of polycrystalline diamond of a kind incorporating a carbonate as a sintering binder-catalyst. The insert (20) is mounted by being at least partly surrounded by a support body (21) of conventional polycrystalline diamond of a kind incorporating a sintering binder-catalyst selected from cobalt and other iron group elements or alloys thereof. The insert (20) and support body (21) may be integrally bonded to a substrate during manufacture. Either the insert (20) or support body (21) may be pre-sintered or sintered during formation of the cutting element.
摘要翻译：用于旋转钻头的切割元件包括至少一个包含碳酸盐作为烧结粘合剂 - 催化剂的多晶金刚石的嵌入件（20）。插入件（20）通过至少部分地被包含选自钴和其它铁族元素或其合金的烧结粘合剂催化剂的常规多晶金刚石的支撑体（21）至少部分地包围。在制造过程中，插入件（20）和支撑体（21）可以与基底一体结合。插入件（20）或支撑体（21）可以在切割元件的形成期间被预烧结或烧结。

5. 发明公开

EP0874128A2 Rotary drill bit having movable formation-engaging members 失效
标题翻译： Drebohrmeissel mit beweglichen Formation-eingreifenden Elementen
公开(公告)号：EP0874128A2
公开(公告)日：1998-10-28
申请号：EP98303080.0
申请日：1998-04-22
申请人： Camco International (UK) Limited
发明人： Griffin, Nigel Dennis , Fuller, John Michael , Newton, Alex , Taylor, Malcolm Roy , Murdock, Andrew , Taylor, Steven
IPC分类号： E21B10/62 , E21B10/56
CPC分类号： E21B10/567 , E21B7/068 , E21B10/322 , E21B10/325 , E21B10/327 , E21B10/54 , E21B10/62 , E21B44/005
摘要： In a rotary drag-type drill bit for drilling subsurface formations, at least one formation-engaging member is movably mounted on the bit body so as to be movable in and out, relative to fixed cutting elements, in response to engagement with the formation being drilled. In one arrangement the formation-engaging member (48) is generally pear-shaped and is bonded within a body of rubber (49) within a tubular sleeve (50) screwed into a threaded socket in the bit body (51). The body of rubber (49), confined within the sleeve (50), offers comparatively solid resistance to impact at right angles to the surface of the bit body. However, when subjected to a force having a sideways component the member (48) tilts against the resilience of the rubber (49), to reduce the extent to which the member projects above the surface of the bit body. The member (48) thus protects an associated cutting element against impact but yields to allow the cutting element to engage the surface of the formation being drilled.
摘要翻译：在用于钻井地下构造的旋转式拖曳式钻头中，至少一个地层接合构件可移动地安装在钻头体上，以便相对于固定的切割元件能够相对于与地层啮合而相互移动和移出钻出。在一种布置中，地层接合构件（48）通常是梨形的，并且在螺纹连接到钻头体（51）中的螺纹插座中的管状套筒（50）内的橡胶体（49）内结合。限制在套筒（50）内的橡胶体（49）提供了与钻头体表面成直角冲击的相当坚固的抵抗力。然而，当受到具有侧向部件的力时，构件（48）抵抗橡胶（49）的弹力倾斜，以减小构件在钻头体的表面上方突出的程度。构件（48）因此保护相关联的切割元件免受冲击，但是产生以允许切割元件接合正被钻孔的地层的表面。

6. 发明公开

EP0872624A2 Improvements in or relating to rotary drill bits 失效
标题翻译：旋转钻头或与其相关的改进
公开(公告)号：EP0872624A2
公开(公告)日：1998-10-21
申请号：EP98302803.6
申请日：1998-04-09
申请人： Camco International (UK) Limited
发明人： Caraway, Douglas , Hayward, John , Taylor, Malcolm Roy , Roberts, Tom Scott , Taylor, Steven , Watson, Graham
IPC分类号： E21B10/54
CPC分类号： E21B10/55 , E21B10/003 , E21B10/26 , E21B10/60 , E21B10/602 , E21B17/1092
摘要： A rotary drill bit comprises a leading pilot bit part (64) having a leading face and a gauge region, a plurality of cutting elements (70) mounted on the leading face of the pilot bit part, a plurality of fluid channels (68) formed in said leading face, and a plurality of nozzles (72) mounted in the pilot bit part for supplying drilling fluid to the channels for cleaning and cooling the cutting elements. The drill bit also includes a reaming part (78) behind the pilot bit part which is of greater effective cutting diameter than the pilot bit part (64). The gauge region of the pilot bit part comprises a bearing surface (76) which extends around substantially the whole of the gauge region.
摘要翻译：旋转钻头包括具有前导面和标准区域的前导向钻头部分（64），安装在导向钻头部分前导面上的多个切削元件（70），形成的多个流体通道（68）以及安装在导向钻头部件中的多个喷嘴（72），用于将钻井液供应到通道以清洁和冷却切割元件。钻头还包括位于导向钻头部分后面的扩孔部分（78），其具有比导向钻头部分（64）更大的有效切削直径。导向钻头部分的测量区域包括基本上围绕整个测量区域延伸的支承表面（76）。

7. 发明授权

EP0872624B1 Improvements in or relating to rotary drill bits 失效
标题翻译：改进旋转钻头
公开(公告)号：EP0872624B1
公开(公告)日：2004-08-11
申请号：EP98302803.6
申请日：1998-04-09
申请人： Camco International (UK) Limited
发明人： Caraway, Douglas , Hayward, John , Taylor, Malcolm Roy , Roberts, Tom Scott , Taylor, Steven , Watson, Graham
IPC分类号： E21B10/54
CPC分类号： E21B10/55 , E21B10/003 , E21B10/26 , E21B10/60 , E21B10/602 , E21B17/1092

8. 发明公开

EP0872624A3 Improvements in or relating to rotary drill bits 失效
标题翻译：改进旋转钻头
公开(公告)号：EP0872624A3
公开(公告)日：1999-04-14
申请号：EP98302803.6
申请日：1998-04-09
申请人： Camco International (UK) Limited
发明人： Caraway, Douglas , Hayward, John , Taylor, Malcolm Roy , Roberts, Tom Scott , Taylor, Steven , Watson, Graham
IPC分类号： E21B10/54
CPC分类号： E21B10/55 , E21B10/003 , E21B10/26 , E21B10/60 , E21B10/602 , E21B17/1092
摘要： A rotary drill bit comprises a leading pilot bit part (64) having a leading face and a gauge region, a plurality of cutting elements (70) mounted on the leading face of the pilot bit part, a plurality of fluid channels (68) formed in said leading face, and a plurality of nozzles (72) mounted in the pilot bit part for supplying drilling fluid to the channels for cleaning and cooling the cutting elements. The drill bit also includes a reaming part (78) behind the pilot bit part which is of greater effective cutting diameter than the pilot bit part (64). The gauge region of the pilot bit part comprises a bearing surface (76) which extends around substantially the whole of the gauge region.

9. 发明授权

EP1008718B1 Rotary drag-type drill bits and methods of designing such bits 有权
标题翻译：旋钻铣工具和开发方法
公开(公告)号：EP1008718B1
公开(公告)日：2004-09-15
申请号：EP99309759.1
申请日：1999-12-03
申请人： Camco International (UK) Limited
发明人： Taylor, Malcolm Roy , Murdock, Andrew , Jelley, David John
IPC分类号： E21B10/46 , E21B10/56 , E21B10/60
CPC分类号： E21B10/42

10. 发明授权

EP1081119B1 Cutting elements and methods of manufacture thereof 有权
标题翻译：切割元件和它们的制备方法
公开(公告)号：EP1081119B1
公开(公告)日：2002-12-18
申请号：EP00305411.1
申请日：2000-06-28
申请人： Camco International (UK) Limited
发明人： Griffin, Nigel Dennis , Taylor, Malcolm Roy
IPC分类号： C04B37/02 , E21B10/56 , B23B27/14
CPC分类号： E21B10/43 , C04B35/645 , C04B37/021 , C04B37/025 , C04B2237/086 , C04B2237/363 , C04B2237/401 , C04B2237/68 , C04B2237/76 , C04B2237/86 , E21B10/5676 , E21B10/573 , Y10T428/30

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