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    RCD sealing elements with multiple elastomer materials
    1.
    发明授权
    RCD sealing elements with multiple elastomer materials 有权
    具有多种弹性体材料的RCD密封元件

    公开(公告)号：US08596345B2

    公开(公告)日：2013-12-03

    申请号：US13070752

    申请日：2011-03-24

    申请人： Yanmei Li ,  Alan W. Lockstedt ,  Sudarsanam Chellappa

    发明人： Yanmei Li ,  Alan W. Lockstedt ,  Sudarsanam Chellappa

    IPC分类号： E21B33/068

    CPC分类号： E21B33/085

    摘要： A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro.

    摘要翻译： 公开了一种用于旋转控制装置的密封元件，其中密封元件具有形成沿轴向延伸穿过密封元件的钻柱孔的内表面，附接端具有延伸到基本上平行于钻柱孔的附接端的接收腔， 与安装端相对的鼻端，其中鼻端具有小于附接端的内径的内径，在附接端和鼻端之间的喉部区域，至少一个软弹性体区域，包括软弹性体材料 具有70杜耳或更低的硬度，以及至少一个刚性弹性体区域，其包含硬度大于70杜鲁的硬质弹性体材料。

    RCD SEALING ELEMENTS WITH MULTIPLE ELASTOMER MATERIALS
    2.
    发明申请
    RCD SEALING ELEMENTS WITH MULTIPLE ELASTOMER MATERIALS 有权
    RCD密封元件与多种弹性体材料

    公开(公告)号：US20120118559A1

    公开(公告)日：2012-05-17

    申请号：US13070752

    申请日：2011-03-24

    申请人： Yanmei Li ,  Alan W. Lockstedt ,  Sudarsanam Chellappa

    发明人： Yanmei Li ,  Alan W. Lockstedt ,  Sudarsanam Chellappa

    IPC分类号： E21B33/06 ,  E21B33/068

    CPC分类号： E21B33/085

    摘要： A sealing element for a rotating control device is disclosed, wherein the sealing element has an inner surface which forms a drillstring bore extending axially through the sealing element, an attachment end having a receiving cavity extending into the attachment end substantially parallel with the drillstring bore, a nose end opposite from the attachment end, wherein the nose end has an inner diameter smaller than the inner diameter of the attachment end, a throat region between the attachment end and the nose end, at least one soft elastomer region comprising a soft elastomer material having a hardness of 70 duro or less, and at least one stiff elastomer region comprising a stiff elastomer material having a hardness greater than 70 duro.

    摘要翻译： 公开了一种用于旋转控制装置的密封元件，其中密封元件具有形成沿轴向延伸穿过密封元件的钻柱孔的内表面，附接端具有延伸到基本上平行于钻柱孔的附接端的接收腔， 与安装端相对的鼻端，其中鼻端具有小于附接端的内径的内径，在附接端和鼻端之间的喉部区域，至少一个软弹性体区域，包括软弹性体材料 具有70杜耳或更低的硬度，以及至少一个刚性弹性体区域，其包含硬度大于70杜鲁的硬质弹性体材料。

    Drill bit with canted gage insert
    5.
    发明授权
    Drill bit with canted gage insert 失效
    钻头倾斜量具插入

    公开(公告)号：US06640913B2

    公开(公告)日：2003-11-04

    申请号：US09107639

    申请日：1998-06-30

    申请人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

    发明人： Alan W. Lockstedt ,  Gary R. Portwood ,  Scott D. McDonough

    IPC分类号： E21B1008

    CPC分类号： E21B10/5673 ,  E21B10/16 ,  E21B10/52

    摘要： A rolling cone drill bit is provided that has gage inserts on the first row from the bit axis to cut to full gage diameter that have a cutting portion enhanced with a layer of super abrasive material. The gage cutting surface has a center axis that is canted to be more normal to the gage curve such that its point of contact at gage is away from the thinner portion of the layer of super abrasive material.

    摘要翻译： 提供了一种滚动锥钻头，其具有从钻头轴线到第一排的量具插入件，以切割成全量规直径，其具有通过一层超级研磨材料增强的切割部分。 计量切割表面具有倾斜的中心轴线，以使其与量规曲线更正交，使得其量规上的接触点远离超级研磨材料层的较薄部分。

    Rock bit with an extended center jet
    6.
    发明授权
    Rock bit with an extended center jet 失效
    岩石与一个扩展的中心喷气机

    公开(公告)号：US5853055A

    公开(公告)日：1998-12-29

    申请号：US671517

    申请日：1996-06-27

    申请人： Michael A. Siracki ,  Per I. Nese ,  Alan W. Lockstedt ,  Dennis Cisneros ,  Michael S. Oliver ,  Gary R. Portwood

    发明人： Michael A. Siracki ,  Per I. Nese ,  Alan W. Lockstedt ,  Dennis Cisneros ,  Michael S. Oliver ,  Gary R. Portwood

    IPC分类号： E21B10/16 ,  E21B10/18

    CPC分类号： E21B10/18 ,  E21B10/16

    摘要： A rotary cone bit for drilling bore holes in earth formations whose body has a thread pin end and a dome end from which extend three legs. A cutter cone is rotatably mounted to each leg and is radially oriented about the bit's central axis. Each cutter cone has a gage row of cutting elements extending from the cone surface nearest the mouth and a nose row extending nearest the cone's apex. A center jet for emitting fluid or mud is located on the dome. The jet has a converging nozzle with an exit orifice which extends below a predefined horizontal plane intersected by the cones or cutting elements. The exit orifice has a constant diameter for a length at least equal to its diameter for reducing the diffusion of the fluid or mud flow emitted. Fluid or mud emitted from the center jet travels substantially uninterrupted within a cylindrical space between the cones which is not invaded by any cutting element. This reduced diffusion substantially uninterrupted fluid flow strikes the bore hole bottom with maximum impact energy for enhanced removal of earth formation cuttings.

    摘要翻译： 一个用于在地层中钻孔的旋转锥形钻头，其主体具有螺纹针端和从其延伸三条腿的圆顶端。 切割锥体可旋转地安装到每个支腿上并且围绕钻头的中心轴线径向定向。 每个切割锥体具有从最接近嘴部的锥形表面延伸的切割元件的行列，以及最靠近锥体顶点延伸的鼻列。 用于喷射流体或泥浆的中心喷射器位于圆顶上。 喷射器具有会聚喷嘴，其具有出口孔，该出口孔延伸到与锥体或切割元件相交的预定水平面下方。 出口孔具有至少等于其直径的长度的恒定直径，用于减少发射的流体或泥浆流的扩散。 从中心射流发射的流体或泥浆在不被任何切割元件侵入的锥体之间的圆柱形空间内基本上不间断地行进。 这种减少的扩散基本上不间断的流体流动以最大的冲击能量撞击钻孔底部，以增强地球切屑的去除。

    Composite bearing
    7.
    发明授权
    Composite bearing 失效
    复合轴承

    公开(公告)号：US4499642A

    公开(公告)日：1985-02-19

    申请号：US334499

    申请日：1981-12-28

    申请人： Edward Vezirian ,  Richard J. Quinones ,  Alan W. Lockstedt

    发明人： Edward Vezirian ,  Richard J. Quinones ,  Alan W. Lockstedt

    IPC分类号： E21B10/22 ,  F16C33/24 ,  B21D53/10

    CPC分类号： F16C33/24 ,  E21B10/22 ,  Y10T29/49671 ,  Y10T29/49675 ,  Y10T29/49677 ,  Y10T29/49702 ,  Y10T29/49709

    摘要： A heavy-duty composite radial journal bearing and a method to produce it is described. A pattern of openings is formed through a bearing sleeve representing, for instance, axially aligned metal bars. The openings are subsequently filled wth a metal dissimilar to the sleeve. Filling may be done with the sleeve in place either on a journal or in a housing, in which case the bearing becomes integral to that member by fusion. Alternately, the sleeve may be filled upon a nonwettable mandrel and subsequently used as a floating ring or as a bushing. Final finish machining reveals a pattern which exists throughout the bearing of alternating areas of relatively hard metal and a softer antigalling metal.

    摘要翻译： 描述了一种重型复合径向轴颈轴承及其制造方法。 通过例如轴向对准的金属棒的轴承套筒形成开口的图案。 开口随后以不同于套筒的金属填充。 填充可以通过套筒在轴颈或壳体中就位，在这种情况下，轴承通过熔合成为该构件的一部分。 或者，套筒可以填充在不可润湿的心轴上，随后用作浮环或衬套。 最终精加工显示存在于相对硬的金属和较软的防环氧金属的交替区域的整个轴承中的图案。

    Diamond bit steel body cutter pocket protection
    8.
    发明授权
    Diamond bit steel body cutter pocket protection 失效
    金刚石钻头钢体刀具口袋保护

    公开(公告)号：US08235149B2

    公开(公告)日：2012-08-07

    申请号：US12650162

    申请日：2009-12-30

    申请人： Alan W. Lockstedt ,  Thomas W. Oldham

    发明人： Alan W. Lockstedt ,  Thomas W. Oldham

    IPC分类号： E21B10/55

    CPC分类号： E21B10/55

    摘要： A drill bit that includes a steel bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade; at least one cutter disposed in the at least one cutter pocket; at least one recess formed in at least a portion of the surface of the at least one cutter pocket, wherein the recess is adjacent a leading face of the at least one blade; and an erosion resistant material in the at least one recess is disclosed.

    摘要翻译： 一种钻头，其包括在其上具有至少一个刀片的钢钻头体，设置在所述至少一个刀片上的至少一个刀具凹口; 至少一个切割器设置在所述至少一个切割器凹槽中; 在所述至少一个切割器凹槽的至少一部分表面中形成的至少一个凹部，其中所述凹部邻近所述至少一个叶片的前表面; 并且公开了在所述至少一个凹部中的耐腐蚀材料。