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21. 发明授权

US4183417A Roller bit seal excluded from cuttings by air discharge 失效
标题翻译：通过排气排除切屑之外的滚子钻头密封
公开(公告)号：US4183417A
公开(公告)日：1980-01-15
申请号：US892866
申请日：1978-04-03
申请人： Bert G. Levefelt
发明人： Bert G. Levefelt
IPC分类号： E21B10/18 , E21B10/22 , E21B10/25 , F16C17/24 , F16C19/52 , F16J15/34 , F16J15/40 , E21C13/00 , E21B9/10
CPC分类号： E21B10/25 , E21B10/18 , F16C17/24 , F16C19/52 , F16J15/3456 , F16J15/40
摘要： A rotary roller bit for drilling earth and rock formations, having a main body and three legs extending outwardly therefrom. Each of the legs carries a conical roller cutter with internal bearings and there is a seal around the periphery of the top of the roller cutter. The periphery of the roller cutter is spaced from the adjacent portion of the leg so as to provide a jet slot for the discharge of air. Adjacent the slot and radially inwardly is an air chamber which is formed between an annular surface of the leg and a seal ring. The air chamber is substantially greater in its dimension axially of the roller cutter and air is supplied to it under sufficient pressure to cause a jet of air to flow from the jet slot at a sufficient rate to prevent the entry of rock particles and dirt into the roller cutter.
摘要翻译：一种用于钻地层和岩层的旋转辊钻头，具有主体和从其向外延伸的三条腿。每个腿都带有带有内部轴承的圆锥滚子切割器，并且在滚子切割器的顶部周围存在密封。辊切割器的周边与腿的相邻部分间隔开，以便提供用于排出空气的喷射槽。邻近狭槽并且径向向内是形成在腿的环形表面和密封环之间的空气室。空气室的尺寸在滚子切割器的轴向尺寸上大得多，并且在足够的压力下向其提供空气，以使空气流以足够的速率从喷口流出，以防止岩石颗粒和污物进入滚筒切割机

22. 发明授权

US4067406A Soft formation drill bit 失效
标题翻译：软岩钻头
公开(公告)号：US4067406A
公开(公告)日：1978-01-10
申请号：US709797
申请日：1976-07-29
申请人： Lloyd L. Garner , Charles Richard Harris
发明人： Lloyd L. Garner , Charles Richard Harris
IPC分类号： E21B10/16 , E21B10/52 , E21B17/10 , E21B9/10
CPC分类号： E21B17/1092 , E21B10/16 , E21B10/52
摘要： A rock bit with rotary cone cutter means having hardened insert teeth utilizing fewer than the normal number of teeth or of cutters used for a given gage hole wherein the cone cutter body is of greater diameter and for approximately the same axial length, of a greater wall thickness and to accommodate a greater insert tooth depth or grip length and permit a proportional increase in extension of the insert from the cutter body to provide greater penetration with fewer insert teeth in contact at a given time, and also providing for increased journal bearing area to increase the life of the extended insert cutters.
摘要翻译：具有旋转锥形切割器的岩石钻头意味着具有使用少于正常齿数的硬化刀片齿或用于给定量规孔的切割器，其中锥形切割器主体具有较大直径和大致相同轴向长度的较大壁并且适应更大的插入齿深度或握持长度，并允许刀片从刀体延伸的比例增加，以在给定的时间提供较少的插入齿接触的较大的穿透力，并且还提供增加的轴颈轴承面积延长刀片刀片寿命。

23. 发明授权

US4037673A Roller cutter drill bit 失效
标题翻译：滚刀钻头
公开(公告)号：US4037673A
公开(公告)日：1977-07-26
申请号：US684125
申请日：1976-05-07
申请人： Daniel B. Justman
发明人： Daniel B. Justman
IPC分类号： E21B10/22 , E21B10/25 , E21B9/10
CPC分类号： E21B10/25
摘要： An earth boring drill employing roller cutters is provided with a seal in a peripheral groove to inhibit ingress of detritus into the cutter bearing area and egress of lubricant therefrom. The shape of the seal is such that its cross section is not overly compressed or displaced when in operating position, thus preventing undue compression set, wear and heating of the seal. A preferred seal has a greater radial dimension than axial dimension by a ratio of at least one-and-one-half to one to conserve bearing space and to provide the necessary flexibility to accommodate the various movements of the cutter relative to the shaft upon which it is rotatably mounted. The roller cutter has a counterbore fitting over a short cylindrical boss from which the shaft extends on which the cutter is mounted. This provides a tortuous passage restricting ingress of detritus and substantially improved life of the drill bit.
摘要翻译：采用辊切割机的钻孔钻具在周向槽中设置有密封，以防止碎屑进入切割器支承区域并从中排出润滑剂。密封件的形状使其横截面在操作位置时不会被过度压缩或移位，从而防止密封件的不适当的压缩变形，磨损和加热。优选的密封件具有比轴向尺寸更大的径向尺寸比至少一个一到一个的比，以节省轴承空间，并且提供必要的柔性以适应切割器相对于轴的各种运动它可旋转地安装。辊式切割机具有安装在短圆柱形凸台上的沉孔，轴从该轴延伸，切割器安装在该圆柱形凸台上。这提供了一个弯曲的通道，限制了碎屑的进入并大大改善了钻头的使用寿命。

24. 发明授权

US4022285A Drill bit with suction and method of dry drilling with liquid column 失效
标题翻译：用钻头钻头和用液柱进行干式钻孔
公开(公告)号：US4022285A
公开(公告)日：1977-05-10
申请号：US665963
申请日：1976-03-11
申请人： Donald D. Frank
发明人： Donald D. Frank
IPC分类号： E21B10/18 , E21B21/00 , E21B9/10
CPC分类号： E21B21/00 , E21B10/18
摘要： A drill bit for drilling deep wells such as oil wells has a cone at the bottom and a fluid bore at the top. The fluid is directed by nozzles upward through a passageway so that the cone is maintained free of fluid and the cuttings from the cone are picked up by suction and carried through the discharge passageway. The jet from the discharge passageway supports the column of fluid surrounding the drill stem.
摘要翻译：用于钻井深井如钻井的钻头在底部具有锥体，顶部具有流体孔。流体被喷嘴向上引导通过通道，使得锥体保持没有流体，并且来自锥体的切屑被抽吸拾取并且通过排出通道运送。来自排放通道的射流支撑围绕钻杆的流体柱。

25. 发明授权

US3923109A Drill tool 失效
标题翻译：钻工具
公开(公告)号：US3923109A
公开(公告)日：1975-12-02
申请号：US55244775
申请日：1975-02-24
申请人： WILLIAMS JR EDWARD B
发明人： WILLIAMS JR EDWARD B
IPC分类号： E21B10/08 , E21B10/18 , E21B10/52 , E21B9/10
CPC分类号： E21B10/52 , E21B10/083 , E21B10/18
摘要： An improved drill tool for drilling earth, rock, and the like as in oil industry operations includes a body member having a plurality of circumferentially spaced arms or lugs extending generally longitudinally from the body member and each having an axle portion thereon for rotatably mounting a cutting cone. The drill tool has a first flow passage with a nozzle member mounted in the end thereof and having a plurality of orifices each positioned to direct drilling fluid toward and across a bottom of the drill hole and between respective pairs of adjacent cutting cones. The drill tool has a second plurality of flow passages each having an upwardly extending portion adapted to induce upwardly flow of drilling debris dislodged by drilling fluid from a respective one of the orifices in the nozzle member. The drill tool has a third plurality of flow passages each having an end portion thereof positioned to direct drilling fluid toward an intersection of a side and the bottom of the drill hole in a manner to join with the flow of drilling fluid from respective orifices in the nozzle member and respective passages of the second plurality of flow passages.
摘要翻译：用于在石油工业操作中钻出地球，岩石等的改进的钻具包括主体构件，其具有多个周向间隔开的臂或凸耳，其大体纵向地从主体构件延伸，并且每个臂具有在其上的轴部，用于可旋转地安装切割锥体。钻具具有第一流动通道，其喷嘴构件安装在其端部并且具有多个孔口，每个孔口定位成将钻井流体朝钻孔底部和相邻的相邻切割锥体对之间穿过钻孔流体。所述钻具具有第二多个流动通道，每个流动通道具有向上延伸的部分，所述向上延伸的部分适于通过从所述喷嘴构件中的所述孔中的相应一个孔钻出流体而引起的钻探碎屑向上流动。钻具具有第三多个流动通道，每个流动通道具有其端部，其端部被定位成以钻孔流体的方式与钻孔的侧面和底部的交叉点以与来自钻孔的相应孔口的钻孔流体流相连的方式引导钻井流体喷嘴构件和第二多个流动通道的相应通道。

26. 发明授权

US3705750A Retaining pin and bearing assembly 失效
标题翻译：保持销和轴承总成
公开(公告)号：US3705750A
公开(公告)日：1972-12-12
申请号：US3705750D
申请日：1970-11-05
申请人： DRESSER IND
发明人： CROW MORGAN L
IPC分类号： E21B10/10 , E21B10/22 , E21B9/10 , E21B9/36
CPC分类号： E21B10/10 , E21B10/22
摘要： An elongated retaining pin having offset end portions allows a bearing assembly to be loosened and easily removed. During operation, the retaining pin is held in position. When the bearing is to be disassembled, the retaining pin is rotated to loosen the bearing assembly.
摘要翻译：具有偏移端部的细长固定销允许轴承组件松动并容易地移除。在操作过程中，固定销保持就位。当轴承拆卸时，保持销旋转以松开轴承组件。

27. 发明授权

US3628616A Drilling bit with integral stabilizer 失效
标题翻译：钻头与整体稳定器
公开(公告)号：US3628616A
公开(公告)日：1971-12-21
申请号：US3628616D
申请日：1969-12-18
申请人： SMITH INTERNATIONAL
发明人： NEILSON WILLIAM J
IPC分类号： E21B10/08 , E21B10/46 , E21B10/52 , E21B9/10
CPC分类号： E21B10/08 , E21B10/46 , E21B10/52
摘要： A rotary drilling bit having depending legs with rotary cutters journaled thereon, the legs terminating downwardly in relatively thin portions facing radially outwardly and the bit body being provided with hard metal wear-resisting stabilizer shoes integral therewith and preferably located vertically above the legs to resist lateral movement of the tool in the formation resulting from lateral movement of the drill string above the tool and thereby reduce wear of the tool legs, and especially their lower portions.

28. 发明授权

US4279316A Earth boring bit with eccentric seal boss 失效
标题翻译：地球钻头与偏心密封凸台
公开(公告)号：US4279316A
公开(公告)日：1981-07-21
申请号：US83085
申请日：1979-10-09
申请人： James E. Helmick
发明人： James E. Helmick
IPC分类号： E21B10/22 , E21B10/25 , F16C17/02 , E21B9/10
CPC分类号： E21B10/25 , E21B10/22
摘要： A rolling cone cutter earth boring bit is provided with a sealing system that results in the seal being squeezed uniformly around the seal circumference during drilling. The bearing pin seal surface is machined eccentrically to the bearing pin by an amount equal to the radial clearance of the bearing. The bearing pin seal surface is machined about an axis that is offset from the central axis of the bearing pin in the direction of the unloaded side of the bearing pin. When the bit is drilling and the bearing pin is loaded the seal will run on an axis concentric with the axis of the seal surfaces of the bearing pin and the rolling cutter and will see uniform squeeze around its circumference.
摘要翻译：滚动圆锥切割机镗孔设有密封系统，导致密封在钻孔期间在密封圆周周围均匀挤压。轴承销密封表面与轴承销偏心加工等于轴承径向间隙的量。轴承销密封表面围绕一个轴承加工，该轴线与轴承销的中心轴线在轴承销的无负载侧的方向上偏移。当钻头钻孔并且轴承销被装载时，密封件将在与轴承销和滚动切割器的密封表面的轴线同心的轴上运行，并且将围绕其圆周看到均匀的挤压。

29. 发明授权

US4068731A Extended nozzle and bit stabilizer and method of producing 失效
标题翻译：扩展喷嘴和位稳定器及其生产方法
公开(公告)号：US4068731A
公开(公告)日：1978-01-17
申请号：US742590
申请日：1976-11-17
申请人： Lloyd L. Garner , Charles Richard Harris
发明人： Lloyd L. Garner , Charles Richard Harris
IPC分类号： E21B10/18 , E21B10/52 , E21B17/10 , E21B9/10
CPC分类号： E21B17/1092 , E21B10/18 , E21B10/52
摘要： A rotary drill bit with downwardly extended circulation nozzle means an outwardly facing portion of which serves as a bit stabilizer wherein the upper portion of the nozzle means is on a greater diameter than the lower portion thereof so that the lower portion is inset from the wall of the formation, the upper portion of the nozzle means being machined from a given larger diameter to a diameter approximately but preferably slightly less than that of the bit body, and providing in the machine surface hardened inserts such as tungsten carbide.

30. 发明授权

US4055225A Lubricant pressure compensator for an earth boring drill bit 失效
标题翻译：用于钻孔钻头的润滑剂压力补偿器
公开(公告)号：US4055225A
公开(公告)日：1977-10-25
申请号：US687131
申请日：1976-05-17
申请人： Stuart C. Millsapps
发明人： Stuart C. Millsapps
IPC分类号： E21B10/24 , F16N9/02 , E21B9/10
CPC分类号： F16N9/02 , E21B10/24
摘要： An improved lubricant pressure compensator system for an earth boring drill bit for equalizing the lubricant pressure with the ambient or borehole pressure. The pressure compensator is located in a lubricant reservoir that has a passage leading out of the bit adjacent the discharge nozzle. A flexible diaphram is located in the reservoir with its lip seated against the base of the reservoir. The lip protrudes outwardly and a protector member bears downwardly against the lip. A cap bears against the protector member compressing the lip. A retainer ring holds the cap with the lip under compression. A protective centering disc is attached to the center of the diaphram.
摘要翻译：一种用于钻孔钻头的改进的润滑剂压力补偿器系统，用于使润滑剂压力与环境或井眼压力相等。压力补偿器位于润滑剂储存器中，该润滑剂储存器具有从排出喷嘴附近的钻头引出的通道。灵活的堤坝位于水库中，其唇缘靠在储层的底部。唇缘向外突出，保护构件向下靠着唇缘。帽子靠在压缩嘴唇的保护构件上。保持环保持盖子，唇部处于压缩状态。保护性定心盘连接到镜片的中心。

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