Unbalanced PDC drill bit with right hand walk tendencies, and method of
drilling right hand bore holes
    21.
    发明授权
    Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes 失效
    具有右手行走倾向的不平衡PDC钻头和钻孔右手钻孔的方法

    公开(公告)号:US5099929A

    公开(公告)日:1992-03-31

    申请号:US520035

    申请日:1990-05-04

    摘要: A rotary drill bit for cutting an earth formation is provided. The drill bit includes a bit body rotatable about its longitudinal axis. A cutting face is provided on the bit body, with a concave central region and a raised outer periphery terminating at bit shoulder. The bit shoulder is concentric with and substantially parallel to the longitudinal axis of the rotary drill bit. A plurality of bit stabilizing pads are circumferentially disposed about the bit's shoulder. A plurality of stationary cutter elements are fixedly mounted to the cutting face in a selected pattern to provide a region of high cutter density on one side of the cutting face, and a region of low cutter density on the other side of the cutting face. The drill bit cuts earth formations as the bit body is rotated about its central axis. The stationary cutter elements operate to cut into the lower side wall of the wellbore as the bit body is rotated, causing the rotary drill bit to walk to the right.

    摘要翻译: 提供用于切割地层的旋转钻头。 钻头包括可围绕其纵向轴线旋转的钻头体。 切割面设置在钻头体上,凹面的中心区域和凸起的外周边终止于钻头的肩部。 钻头台肩与旋转钻头的纵向轴线同心且基本平行。 围绕钻头的肩部周向地布置有多个钻头稳定垫。 多个固定切割元件以选定的图案固定地安装到切割面上,以在切割面的一侧提供高切割深度的区域,并且在切割面的另一侧提供低切割器密度的区域。 当钻头体围绕其中心轴线旋转时,钻头切割地层。 当钻头体旋转时,固定切割元件可操作以切入井筒的下侧壁,从而使旋转钻头向右走。

    PCD CUTTERS WITH IMPROVED STRENGTH AND THERMAL STABILITY
    23.
    发明申请
    PCD CUTTERS WITH IMPROVED STRENGTH AND THERMAL STABILITY 有权
    具有改进强度和热稳定性的PCD切割机

    公开(公告)号:US20130333954A1

    公开(公告)日:2013-12-19

    申请号:US13917511

    申请日:2013-06-13

    IPC分类号: E21B10/573 B24D18/00

    摘要: A thermally stable polycrystalline diamond cutter and method for fabricating the same. The cutter includes a substrate and a cutting table bonded thereto. The cutting table includes a cutting surface, a first beveled edge, a second beveled edge, a side surface, and an opposing surface that is adjacent to the substrate. The first beveled edge extends outwardly at a first angle from the cutting surface towards the substrate. The second beveled edge extends outwardly at a second angle from the first beveled edge towards the substrate. The side surface extends from the second beveled edge to the opposing surface. The cutting table is formed from a polycrystalline diamond structure having interstitial spaces disposed therebetween and a catalyst material disposed within the spaces in an untreated layer and not within a treated layer. The untreated layer includes the entire side surface.

    摘要翻译: 一种热稳定型多晶金刚石刀具及其制造方法。 切割器包括基底和与其结合的切割台。 切割台包括切割表面,第一倾斜边缘,第二倾斜边缘,侧表面和与基底相邻的相对表面。 第一倾斜边缘以从切割表面朝向基底的第一角度向外延伸。 第二倾斜边缘以从第一倾斜边缘朝向基板的第二角度向外延伸。 侧表面从第二倾斜边缘延伸到相对的表面。 切割台由多晶金刚石结构形成,其间具有间隙空间,催化剂材料设置在未处理层的空间内,而不在处理层内。 未处理层包括整个侧表面。

    Alloys With Low Coefficient Of Thermal Expansion As PDC Catalysts And Binders
    24.
    发明申请
    Alloys With Low Coefficient Of Thermal Expansion As PDC Catalysts And Binders 审中-公开
    作为PDC催化剂和粘合剂的低热膨胀系数的合金

    公开(公告)号:US20120012402A1

    公开(公告)日:2012-01-19

    申请号:US13180414

    申请日:2011-07-11

    IPC分类号: E21B10/36 B24D3/10

    摘要: A cutting table includes a lattice structure and a catalyst material deposited within voids formed within the lattice. The catalyst material is deposited in the voids during a sintering process that forms the lattice. The catalyst material has a coefficient of thermal expansion that is less than that of cobalt. The catalyst material is any one of chromium, tantalum, ruthenium, an alloy of cobalt, an alloy of a Group VIII metal and at least one non-catalyst metal, an alloy of two or more Group VIII metals, or a eutectic alloy. In certain embodiments, the catalyst material has a thermal conductivity that is greater than that of cobalt. In certain embodiments, the cutting table is bonded to a substrate, which is formed from a substrate material and a binder material. In some embodiments, the binder material and the catalyst material are the same; while in others, they are different.

    摘要翻译: 切割台包括沉积在形成在晶格内的空隙内的晶格结构和催化剂材料。 催化剂材料在形成晶格的烧结过程中沉积在空隙中。 催化剂材料的热膨胀系数小于钴的热膨胀系数。 催化剂材料是铬,钽,钌,钴合金,第Ⅷ族金属和至少一种非催化剂金属的合金,两种或更多种Ⅷ族金属的合金或共晶合金中的任何一种。 在某些实施方案中,催化剂材料具有大于钴的导热系数。 在某些实施例中,切割台结合到由基底材料和粘合剂材料形成的基底上。 在一些实施方案中,粘合剂材料和催化剂材料是相同的; 而在其他方面,它们是不同的。

    WHIPSTOCK ATTACHMENT TO A FIXED CUTTER DRILLING OR MILLING BIT
    25.
    发明申请
    WHIPSTOCK ATTACHMENT TO A FIXED CUTTER DRILLING OR MILLING BIT 失效
    固定切割机钻孔或铣刀的附件

    公开(公告)号:US20100319997A1

    公开(公告)日:2010-12-23

    申请号:US12789416

    申请日:2010-05-27

    IPC分类号: E21B17/16 E21B7/00

    CPC分类号: E21B12/00 E21B7/061

    摘要: An assembly is provided to attach a whipstock to a mill/drill bit. The assembly includes an upper collar adapted for installation around a shank of the mill/drill bit. At least one connecting member is mounted at a first end to the upper collar. The connecting member extends downwardly from the upper collar and is adapted to fit within a junkslot of the mill/drill bit to which the upper collar is attached. A whipstock attachment structure is mounted to a second end of the at least one connecting member.

    摘要翻译: 提供组件以将造斜器连接到磨/钻头。 组件包括适于安装在铣刀/钻头的柄部周围的上部套环。 至少一个连接构件在第一端安装到上衣领。 连接构件从上部套环向下延伸并且适于装配在上部套环附接到的磨机/钻头的排屑槽中。 造斜装置结构安装在至少一个连接件的第二端上。

    Intermetallic Aluminide Polycrystalline Diamond Compact (PDC) Cutting Elements
    28.
    发明申请
    Intermetallic Aluminide Polycrystalline Diamond Compact (PDC) Cutting Elements 审中-公开
    金属间铝合金多晶金刚石(PDC)切割元件

    公开(公告)号:US20100038148A1

    公开(公告)日:2010-02-18

    申请号:US12522360

    申请日:2008-01-07

    申请人: William W. King

    发明人: William W. King

    摘要: Machining and cutting tools including, but not limited to, rotary drill bits, mining tools, milling tools, wood shredders, reamers and wire dies formed with at least one substrate having a layer of polycrystalline diamond disposed thereon. The polycrystalline diamond layer may be generally described as a polycrystalline diamond compact (PDC) or PDC layer. The PDC may be formed by using an intermetallic aluminide catalyst. One example of such catalyst may include nickel aluminide used to form diamond to diamond bonds between adjacent diamond particles.

    摘要翻译: 加工和切割工具包括但不限于旋转钻头,采矿工具,铣削工具,木粉碎机,扩孔体和线模,其中至少一个基底具有设置在其上的多晶金刚石层。 多晶金刚石层通常可以描述为多晶金刚石致密体(PDC)或PDC层。 PDC可以通过使用金属间铝化物催化剂形成。 这种催化剂的一个实例可以包括用于在相邻的金刚石颗粒之间形成金刚石到金刚石键的镍铝化物。

    Method and system for predicting performance of a drilling system for a given formation
    29.
    发明授权
    Method and system for predicting performance of a drilling system for a given formation 有权
    用于预测给定地层钻井系统性能的方法和系统

    公开(公告)号:US07357196B2

    公开(公告)日:2008-04-15

    申请号:US11215673

    申请日:2005-08-30

    IPC分类号: E21B47/00 E21B44/00

    摘要: A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specifications of proposed drilling equipment for use in the drilling of the well bore, and predicting a drilling mechanics in response to the specifications as a function of the geology characteristic per unit depth according to a prescribed drilling mechanics model. Responsive to a predicted drilling mechanics, a controller controls a parameter in the drilling of the well bore. The geology characteristic includes at least rock strength. The specifications include at least a bit specification of a recommended drill bit. Lastly, the predicted drilling mechanics include at least one of bit wear, mechanical efficiency, power, and operating parameters. A display is provided for generating a display of the geology characteristic and predicted drilling mechanics per unit depth, including either a display monitor or a printer.

    摘要翻译: 用于预测用于在给定地层中钻井的钻井系统的性能的方法和装置包括根据规定的地质模型产生每单位深度的地层的地质特征,获得所提出的用于 根据规定的钻井力学模型,根据作为每单位深度的地质特征的函数的规格,预测井眼的钻孔,并预测钻井力学。 响应于预测的钻井力学,控制器控制钻井中的参数。 地质特征至少包括岩石强度。 规格至少包括推荐钻头的位规格。 最后,预测的钻井力学包括钻头磨损,机械效率,功率和操作参数中的至少一个。 提供了一种显示器,用于产生地质特征和每单位深度的预测钻井力学的显示,包括显示监视器或打印机。