High Impact Resistant Degradation Element
    1.
    发明申请
    High Impact Resistant Degradation Element 有权
    高抗冲击降解元件

    公开(公告)号:US20110291461A1

    公开(公告)日:2011-12-01

    申请号:US13208103

    申请日:2011-08-11

    IPC分类号: E21C35/18

    摘要: In one aspect of the invention, a degradation element includes a substrate bonded to a sintered polycrystalline ceramic. The sintered polycrystalline ceramic has a tapering shape and a rounded apex. The rounded apex has a curvature with a 0.050 to 0.150 inch radius when viewed from a direction normal to a central axis of the degradation element that intersects the curvature. The rounded apex includes the characteristic of when the rounded apex is loaded against a rock formation, the rounded apex fails the rock formation forming a crushed barrier ahead of the rounded apex that shields the rounded apex from a virgin portion of the rock formation while still allowing the rounded apex to penetrate below a surface of the rock formation.

    摘要翻译: 在本发明的一个方面,降解元件包括与烧结多晶陶瓷结合的基材。 烧结多晶陶瓷具有锥形形状和圆顶形。 当从垂直于与曲率相交的降解元件的中心轴的方向观察时,圆形顶点具有0.050至0.150英寸半径的曲率。 圆形顶点包括当圆形顶点被装载在岩层上时的特征,圆形顶点不能形成岩层,在圆顶形前面形成一个破碎的屏障,从而将圆形顶点从岩层的原始部分屏蔽,同时仍允许 圆形顶点渗透到岩层表面以下。

    High impact resistant degradation element
    2.
    发明授权
    High impact resistant degradation element 有权
    高抗冲击降解元素

    公开(公告)号:US09316061B2

    公开(公告)日:2016-04-19

    申请号:US13208103

    申请日:2011-08-11

    摘要: In one aspect of the invention, a degradation element includes a substrate bonded to a sintered polycrystalline ceramic. The sintered polycrystalline ceramic has a tapering shape and a rounded apex. The rounded apex has a curvature with a 0.050 to 0.150 inch radius when viewed from a direction normal to a central axis of the degradation element that intersects the curvature. The rounded apex includes the characteristic of when the rounded apex is loaded against a rock formation, the rounded apex fails the rock formation forming a crushed barrier ahead of the rounded apex that shields the rounded apex from a virgin portion of the rock formation while still allowing the rounded apex to penetrate below a surface of the rock formation.

    摘要翻译: 在本发明的一个方面,降解元件包括与烧结多晶陶瓷结合的基材。 烧结多晶陶瓷具有锥形形状和圆顶形。 当从垂直于与曲率相交的降解元件的中心轴的方向观察时,圆形顶点具有0.050至0.150英寸半径的曲率。 圆形顶点包括当圆形顶点被装载在岩层上时的特征,圆形顶点不能形成岩层,在圆顶形前面形成一个破碎的屏障,从而将圆形顶点从岩层的原始部分屏蔽,同时仍允许 圆形顶点渗透到岩层表面以下。

    Method for drilling with a fixed bladed bit
    4.
    发明授权
    Method for drilling with a fixed bladed bit 有权
    用固定刀片钻头钻孔的方法

    公开(公告)号:US08714285B2

    公开(公告)日:2014-05-06

    申请号:US12619423

    申请日:2009-11-16

    IPC分类号: E21B10/43

    摘要: A downhole fixed bladed bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit, at least one blade comprising a cutting element comprising a superhard material bonded to a cemented metal carbide substrate at a non-planer interface, the cutting element being positioned at a positive rake angle, and the superhard material comprising a substantially conical geometry with an apex comprising a curvature.

    摘要翻译: 井下固定叶片包括工作表面,该工作表面包括多个叶片,所述多个叶片在工作表面的中心处会聚并向着钻头的量规发散;至少一个刀片,包括切割元件,该切割元件包括结合到胶合金属碳化物基底的超硬材料 在非平面界面处,所述切割元件被定位在正前角,并且所述超硬材料包括基本上圆锥形的几何形状,其顶点包括曲率。

    Inner bit disposed within an outer bit
    5.
    发明授权
    Inner bit disposed within an outer bit 有权
    内部位置位于外部位

    公开(公告)号:US08550190B2

    公开(公告)日:2013-10-08

    申请号:US12894371

    申请日:2010-09-30

    IPC分类号: E21B10/26

    CPC分类号: E21B10/26 E21B10/62

    摘要: In one aspect of the present invention, a drill bit assembly for downhole drilling comprises an outer bit comprising a central axis and an outer cutting area and an inner bit disposed within the outer bit and comprising an inner cutting area. The outer bit comprises a first plurality of cutting elements and the inner bit comprises a second plurality of cutting elements wherein an average distance of each cutting element in the first plurality to the central axis forms a first moment arm and an average distance of each cutting element in the second plurality to the central axis forms a second moment arm. A ratio of the inner cutting area to the outer cutting area is substantially equal to a ratio of the outer moment arm to the inner moment arm.

    摘要翻译: 在本发明的一个方面,一种用于井下钻孔的钻头组件包括外钻头,其包括中心轴线和外切割区域,以及设置在外钻头内的内钻头并且包括内切割区域。 所述外钻头包括第一多个切割元件,并且所述内钻头包括第二多个切割元件,其中所述第一多个切割元件到所述中心轴线的每个切割元件的平均距离形成第一力矩臂,并且每个切割元件的平均距离 在第二多个到中心轴线中形成第二力矩臂。 内切割区域与外切割区域的比率基本上等于外力矩臂与内力矩臂的比率。

    Tracking Shearing Cutters on a Fixed Bladed Drill Bit with Pointed Cutting Elements
    6.
    发明申请
    Tracking Shearing Cutters on a Fixed Bladed Drill Bit with Pointed Cutting Elements 有权
    在带有切割元件的固定刀片钻头上跟踪剪切刀

    公开(公告)号:US20110259650A1

    公开(公告)日:2011-10-27

    申请号:US12766555

    申请日:2010-04-23

    IPC分类号: E21B10/43 E21B10/55

    摘要: In one aspect of the invention, a fixed bladed drill bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit. Each blade comprises a plurality of pointed cutting elements and another plurality of shearing cutters. The plurality of shearing cutters comprises a first shearing cutter. The first shearing cutter on each blade tracks the first shearing cutter on other blades along a common circular cutting path.

    摘要翻译: 在本发明的一个方面,固定刀片钻头包括工作表面,该工作表面包括会聚在工作表面的中心并朝向钻头的量规发散的多个叶片。 每个叶片包括多个尖锐的切割元件和另外多个剪切刀。 多个剪切刀包括第一剪切刀。 每个刀片上的第一个剪切刀沿着共同的圆形切割路径跟踪其他刀片上的第一个剪切刀。

    Cutting element attached to downhole fixed bladed bit at a positive rake angle
    8.
    发明授权
    Cutting element attached to downhole fixed bladed bit at a positive rake angle 有权
    切割元件以正前角连接到井下固定刀片位

    公开(公告)号:US08567532B2

    公开(公告)日:2013-10-29

    申请号:US12619305

    申请日:2009-11-16

    IPC分类号: E21B10/43

    摘要: A downhole fixed bladed bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit, at least on blade comprising a cutting element comprising a superhard material bonded to a cemented metal carbide substrate at a non-planer interface, the cutting element being positioned at a positive rake angle, and the superhard material comprising a substantially conical geometry with an apex comprising a curvature.

    摘要翻译: 井下固定刀片包括工作表面,该工作表面包括多个叶片,所述多个刀片在工作表面的中心处会聚并且朝向该钻头的量规发散,至少在刀片上包括切割元件,该切割元件包括结合到胶合金属碳化物基底的超硬材料 在非平面界面处,所述切割元件被定位在正前角,并且所述超硬材料包括基本上圆锥形的几何形状,其顶点包括曲率。

    Fixed Bladed Bit that Shifts Weight between an Indenter and Cutting Elements
    10.
    发明申请
    Fixed Bladed Bit that Shifts Weight between an Indenter and Cutting Elements 有权
    固定刀片位,可以在压头和切割元件之间移动重量

    公开(公告)号:US20100089648A1

    公开(公告)日:2010-04-15

    申请号:US12619377

    申请日:2009-11-16

    摘要: In one aspect of the present invention, a downhole fixed bladed bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit, at least on blade comprising a cutting element comprising a superhard material bonded to a cemented metal carbide substrate at a non-planer interface, the cutting element being positioned at a positive rake angle, and the superhard material comprising a substantially conical geometry with an apex comprising a curvature.

    摘要翻译: 在本发明的一个方面,一种井下固定叶片钻头包括工作表面,该工作表面包括多个叶片,所述多个叶片在工作表面的中心处会聚并且朝向钻头的量规发散,至少在刀片上包括切割元件,该切割元件包括超硬 材料在非平面界面处结合到胶合金属碳化物基底,所述切割元件以正前角定位,并且所述超硬材料包括具有顶点的基本上圆锥形的几何形状,所述顶点包括曲率。