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公开(公告)号：US5836387A
公开(公告)日：1998-11-17
申请号：US910735
申请日：1997-08-13
申请人： Thurman B. Carter
发明人： Thurman B. Carter
IPC分类号： E21B7/06 , E21B7/08 , E21B10/50 , E21B10/60 , E21B12/04 , E21B23/00 , E21B23/01 , E21B23/02 , E21B29/06 , E21B49/06
CPC分类号： E21B49/06 , E21B10/50 , E21B10/60 , E21B12/04 , E21B23/00 , E21B23/01 , E21B23/02 , E21B29/06 , E21B7/061
摘要： The present invention discloses, in certain aspects, a system for securing and item in a tubular channel in a wellbore, the system having a lower body member, an upper body member, interconnecting apparatus for movably interconnecting the lower body member and the upper body member so that upon application of a downward force on the upper body member the upper body member moves downwardly in the second tubular effecting sideways movement of the lower body member so the lower body member contacts an interior surface of the tubular channel thereby wedging the lower body member and the upper body member in the tubular channel, the interconnecting apparatus having a connecting bar disposed partially in a first connecting bar groove in the lower body member and partially in a second connecting bar groove in the upper body member, and the connecting bar grooves and the connecting bar configured so that the connecting bar is movably held in the connecting bar grooves, and at least one pawl member having opposed pawl member ends and movably mounted on the connecting bar, and movable in response to an upward force on the upper body member so that one of the opposed pawl member ends contacts the lower body member and the other pawl member end contacts the upper body member forcing the two body members apart.
摘要翻译： 本发明在某些方面公开了一种用于固定和装入井筒中的管状通道中的系统，该系统具有下主体构件，上主体构件，用于可动地将下主体构件和上主体构件互连的互连装置 使得当在上身构件上施加向下的力时，上身构件在下主体构件的第二管状效应侧向运动中向下移动，使得下主体构件接触管状通道的内表面，从而楔住下主体构件 以及管状通道中的上身构件，互连装置具有部分地设置在下主体构件中的第一连接杆槽中并且部分地设置在上主体构件中的第二连接杆槽中的连接杆，并且连接杆槽和 连接杆构造成使得连接杆可移动地保持在连接杆槽中，以及至少一个棘爪I 具有相对的棘爪构件端部并且可移动地安装在连接杆上，并且可响应于上主体构件上的向上的力而移动，使得相对的棘爪构件端部中的一个接触下主体构件，而另一个棘爪构件端部接触上部 身体成员强迫两个身体成员分开。
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公开(公告)号：US5791423A
公开(公告)日：1998-08-11
申请号：US690887
申请日：1996-08-02
IPC分类号： E21B20060101 , E21B10/16 , E21B10/50
CPC分类号： E21B10/50
摘要： An earth-boring bit has a bit body and at least one cutter rotatably secured to the bit body. The cutter includes a plurality of teeth formed integrally with the cutter and arranged in circumferential rows. Each tooth has inner and outer ends, leading and trailing flanks, and a crest transversely connecting the ends and flanks. A thickness of wear-resistant material is applied over the crest and at least a portion of the ends and flanks of the tooth. An extending layer of wear-resistant material is applied at the intersection of the leading flank and the outer end to provide twice the hard-facing thickness and increased wear-resistance in that area of the tooth that is subjected to the greatest wear.
摘要翻译： 钻头具有一个位体，并且至少一个切割器可旋转地固定到钻头体上。 切割器包括与切割器一体形成并且以圆周排布置的多个齿。 每个齿具有内端和外端，前端和后端，以及横向连接端部和侧面的波峰。 将耐磨材料的厚度施加在牙齿的顶部和牙齿的端部和侧面的至少一部分上。 耐磨材料的延伸层被施加在前端和外端的交叉处，以提供两倍的硬面厚度，并且在经受最大磨损的牙齿区域中增加耐磨性。
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公开(公告)号：US5755298A
公开(公告)日：1998-05-26
申请号：US818468
申请日：1997-03-12
IPC分类号： B23K9/04 , B23K35/02 , B23K35/32 , B23K35/368 , B24D3/06 , C22C26/00 , C22C29/08 , E21B10/46 , E21B10/50
CPC分类号： B23K35/327 , B23K35/0266 , B24D3/06 , E21B10/46 , E21B10/50 , Y10T428/1209
摘要： Hardfacing to protect wear surfaces of drill bits and other downhole tools having coated diamond particles dispersed within and bonded to a metallic matrix deposit. The coating on the diamond particles may be formed from materials and alloys such as particles, tungsten carbide, and tungsten carbide/cobalt and cermets such as metal carbides and metal nitrides. The coated diamond particles are preferably sintered and have a generally spherical shape. The coated diamond particles are pre-mixed with selected materials such that welding and cooling will form both a metallurgical bond and a mechanical bond within the solidified metallic matrix deposit. A welding rod is prepared by placing a mixture of coated diamond particles, hard particles such as tungsten carbide/cobalt, and loose filler material into a steel tube. A substrate is hardfaced by progressively melting the welding rod onto a selected surface of the substrate and allowing the melted material to solidify, forming the desired hardfacing with coated diamond particles dispersed therein on the substrate surface.
摘要翻译： 表面硬化以保护具有分散在金属基质沉积物中并与金属基质沉积物结合的涂覆金刚石颗粒的钻头和其它井下工具的磨损表面。 金刚石颗粒上的涂层可以由诸如颗粒，碳化钨，碳化钨/钴和金属陶瓷如金属碳化物和金属氮化物的材料和合金形成。 涂覆的金刚石颗粒优选是烧结的并且具有大致球形的形状。 涂覆的金刚石颗粒与选定的材料预混合，使得焊接和冷却将在固化的金属基质沉积物内形成冶金结合和机械结合。 通过将涂覆的金刚石颗粒，硬质颗粒如碳化钨/钴和松散的填充材料的混合物放置在钢管中来制备焊条。 通过将焊条逐渐熔化到衬底的选定表面上并允许熔融的材料固化，形成期望的硬化面，其中分散在其中的涂覆的金刚石颗粒在衬底表面上，使衬底硬化。
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公开(公告)号：US5655612A
公开(公告)日：1997-08-12
申请号：US468215
申请日：1995-06-06
IPC分类号： E21B10/16 , E21B10/50 , E21B10/52 , E21B10/56 , E21B10/567 , E21B10/573 , E21B17/10 , E21B10/46 , E21B12/04
CPC分类号： E21B10/567 , E21B10/16 , E21B10/50 , E21B10/52 , E21B10/5673 , E21B10/5735 , E21B17/1092
摘要： An earth-boring bit is provided with hard gage inserts that protrude from the gage surface of the cutter to engage the side of the borehole for holding gage. The cutting end of the gage insert has a cutting end defining at least one sharp cutting edge and at least one cutting surface that define a negative rake angle with respect to the sidewall of the borehole that is being sheared by the gage insert. The cutting end, cutting edge, and cutting surface of the gage insert are formed of a super-hard and abrasion-resistant material such as polycrystalline diamond or cubic boron nitride. The body of the insert is formed of a hard, fracture-tough material such as cemented tungsten carbide. The improved gage inserts provide an actively cutting gage surface that engages the sidewall of the borehole to promote shearing removal of the sidewall material. Such an improved gage insert provides an earth-boring bit with improved gage-holding ability, and improved steerability in directional drilling operations.
摘要翻译： 设有一个钻孔位置，其具有从切割器的表面突出的硬量规插入件以接合用于保持量具的钻孔侧。 量具插入件的切割端具有限定至少一个锋利的切割边缘和至少一个切割表面的切割端，该至少一个切割表面相对于被孔规插入件剪切的钻孔的侧壁限定负的前角。 量具插入件的切割端，切割刃和切割表面由超硬耐磨材料形成，例如多晶金刚石或立方氮化硼。 插入物的主体由硬质的，断裂韧性的材料形成，如硬质合金碳化物。 改进的量规插入件提供与钻孔的侧壁接合的主动切割表面，以促进侧壁材料的剪切移除。 这种改进的量规插入件提供了具有改进的量具保持能力的钻孔钻头，并且在定向钻井操作中提高了可操纵性。
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公开(公告)号：US5653299A
公开(公告)日：1997-08-05
申请号：US559959
申请日：1995-11-17
申请人： Harold A. Sreshta , Eric F. Drake
发明人： Harold A. Sreshta , Eric F. Drake
CPC分类号： C22C33/0292 , B22F7/06 , C22C29/067 , E21B10/50 , Y10T428/1209
摘要： A steel tooth rolling cutter earth boring drill bit comprises a bit body with a threaded upper end for attachment to the end of a drill string, and a lower end comprising three legs extending downwardly from the bit body and with a rolling cutter rotatably mounted on each leg. A layer of wear resistant material is applied to a portion of each rolling cutter and comprises were resistant particles in a substantially steel matrix. The steel matrix is integrally formed with the cutter in a rapid, solid state densification powder metallurgy (RSSDPM) process, and comprises a duplex microstructure comprising from about 10 to about 40 volume percent austenite and from about 60 to 90 volume precent martensite. The duplex microstructure may be achieved by incorporating a minor fraction of pure nickel and/or manganese powder in the powder mix used in the process, thereby providing nickel or manganese enrichment of the austenitic zones of the matrix.
摘要翻译： 钢齿滚动切割机钻孔钻头包括具有用于附接到钻柱的端部的螺纹上端的钻头体，以及包括从钻头体向下延伸的三个腿部的下端，并且可旋转地安装在每个 腿。 将一层耐磨材料施加到每个轧制切割机的一部分，并且包括基本上为钢基体的耐磨颗粒。 钢基体与快速固态致密粉末冶金（RSSDPM）工艺中的切割机一体地形成，并且包括由约10至约40体积％的奥氏体和约60至90体积的马氏体组成的双相微观结构。 可通过在工艺中使用的粉末混合物中加入少部分纯镍和/或锰粉末来实现双相组织，由此提供基体的奥氏体区域的镍或锰富集。
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公开(公告)号：US5620051A
公开(公告)日：1997-04-15
申请号：US655087
申请日：1996-06-03
申请人： Thurman B. Carter , John D. Roberts
发明人： Thurman B. Carter , John D. Roberts
CPC分类号： E21B47/091 , E21B10/50 , E21B29/06 , E21B44/005 , E21B7/061
摘要： A downhole wellbore tool has been developed which has a lower movable valve apparatus which, when it contacts a member in a wellbore or in a tubular in a wellbore, is moved to close off fluid flow through the item to which the valve apparatus is attached. In one aspect, such a valve apparatus is used below a mill above which is positioned a downhole motor which rotates the mill for milling. Actuation of the valve apparatus results in a cessation of the circulation of the motive fluid flowing to and through the motor so that milling stops. In one aspect the valve is selectively operable so that milling may be resumed. In another aspect such a tool is useful for indicating a known location in a wellbore when a decrease or cessation in fluid flow or a decrease in pressure is noticed at the surface.
摘要翻译： 已经开发了一种井下井眼工具，其具有下部可动阀装置，当其与井筒中的构件接触或在井筒中的管状物中接触时，移动以关闭通过与阀装置连接的物品的流体流动。 在一个方面，这种阀装置在磨机下面使用，在其上方定位有使铣床旋转的井下马达。 阀装置的致动导致流过和通过电动机的运动流体的循环停止，从而停止铣削。 在一个方面，阀可选择性地可操作，使得可以恢复铣削。 在另一方面，当在表面上注意到流体流动减少或停止或压力降低时，这种工具可用于指示井筒中的已知位置。
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公开(公告)号：US5152194A
公开(公告)日：1992-10-06
申请号：US690454
申请日：1991-04-24
IPC分类号： E21B10/50
CPC分类号： E21B10/50
摘要： A milled teeth rotary cone rock bit consists of chisel crested milled teeth with generously radiused corners at the ends of the crest. A concave depression is formed in the crest between the radiused ends. A layer of hardfacing material formed over each tooth is thicker at the corners and in the concave depressions in the crest to provide a means to inhibit wear of the hardfacing as the bit works in a borehole.
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公开(公告)号：US4630693A
公开(公告)日：1986-12-23
申请号：US723139
申请日：1985-04-15
申请人： Robert D. Goodfellow
发明人： Robert D. Goodfellow
摘要： A rotary cutter assembly employs a wear sleeve to improve the durability of the drill head and to seal off a fluid passageway in the shank of a drill bit which is mounted to the drill head. The shank of the drill bit is releasably secured to the drill head by means of lock pins received in intersecting complementary longitudinally and transversely extending grooves. A lock ring is also employed to axially secure the drill bit to the drill head.
摘要翻译： 旋转切割器组件采用耐磨套筒来提高钻头的耐久性并且密封安装在钻头上的钻头的柄部中的流体通道。 钻头的柄部通过接合在相互互补的纵向和横向延伸凹槽中的锁销而可释放地固定到钻头。 还使用锁定环将钻头轴向固定到钻头。
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公开(公告)号：US4553615A
公开(公告)日：1985-11-19
申请号：US467672
申请日：1983-02-17
申请人： Alfred J. Grainger
发明人： Alfred J. Grainger
IPC分类号： E21B10/12 , E21B10/18 , E21B10/20 , E21B10/22 , E21B10/50 , E21B10/56 , E21B10/567 , E21B10/52
摘要： A rotary drilling drag bit for drilling from the surface deep holes in sub-surface formations e.g. for oil has a body (4) with a diameter of at least 100 mm and having a bore for passage of drilling fluid to its face (3) and rotatable cutting elements (6) having a cutting face comprising an agglomerate of diamond particles so mounted on the body (4) that they are free to rotate in use.The cutting elements are of long life and highly effective in drilling.
摘要翻译： 用于从表面钻孔的旋转钻削阻力钻头，例如在地下地层中的深孔。 对于油具有直径为至少100mm的主体（4），并且具有用于将钻井流体通过其面（3）的孔和具有切割面的可旋转切割元件（6），该切割元件包括如此安装的金刚石颗粒的附聚物 在身体（4）上他们可以自由旋转使用。 切割元件寿命长，钻孔高效。
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公开(公告)号：US4365679A
公开(公告)日：1982-12-28
申请号：US212068
申请日：1980-12-02
摘要： A drill bit with cutting teeth for drilling in rock comprising:a core member having raceways for rolling elements for rotation of the drill bit,a supporting layer exteriorly shaped to define cutting teeth and formed of highly compacted sintered powder material of substantially 90% density, isostatically bonded to said core member,a wear resistant layer applied by thermal spraying and covering only the portions of the cutting teeth which upon drilling directly contact the rock,said wear resistant layer and said supporting layer being isostatically compacted hot which combined are of substantially 99% density,said layers having a solid bond therebetween providing a drill bit of superior mechanical properties including high resistance to wear and chipping.
摘要翻译： 一种具有用于在岩石中钻孔的切割齿的钻头，包括：具有用于滚动元件的用于旋转钻头的滚道的芯构件，外部形状以限定切割齿的支撑层，并由密实度为90％的高度压实的烧结粉末材料形成， 均匀地结合到所述芯构件上，通过热喷涂施加的耐磨层并且仅覆盖在钻孔时直接接触岩石的所述切削齿的部分，所述耐磨层和所述支撑层被均压成热，其组合为基本上为99 ％密度，所述层之间具有固体粘合，提供具有优异机械性能的钻头，包括高耐磨性和切屑。
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