Turbine Driven Reaming Bit with Blades and Cutting Structure Extending into Concave Nose
    1.
    发明申请
    Turbine Driven Reaming Bit with Blades and Cutting Structure Extending into Concave Nose 有权
    涡轮驱动铰刀,刀片和切割结构延伸到凹头

    公开(公告)号:US20130180782A1

    公开(公告)日:2013-07-18

    申请号:US13349246

    申请日:2012-01-12

    IPC分类号: E21B10/26

    CPC分类号: E21B10/26 E21B7/20 E21B10/54

    摘要: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.

    摘要翻译: 当涡轮机以300-600RPM及以上的速度驱动时,设计用于以低扭矩波动运行的铰孔,具有从规格尺寸到鼻部区域弧形的轮廓,或者具有钝的直锥形截面,但是 轮廓长度(PL)与钻头尺寸(BS)的比值低于0.75。 刀片延伸到凹锥体中,并且切割结构沿着刀片朝向中心继续。 叶片具有靠近测量部分的台阶,以增加叶片切割结构的曝光。 平行于切割结构并在切割结构之后设置一组突起,以增加高速稳定性并且邻近叶片台阶转变以在运行时保护外壳。

    Turbine driven reaming bit with profile limiting torque fluctuation
    2.
    发明授权
    Turbine driven reaming bit with profile limiting torque fluctuation 有权
    涡轮驱动的铰孔钻头具有轮廓限制扭矩波动

    公开(公告)号:US09080390B2

    公开(公告)日:2015-07-14

    申请号:US13349223

    申请日:2012-01-12

    CPC分类号: E21B7/20 E21B10/26 E21B10/54

    摘要: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.

    摘要翻译: 当涡轮机以300-600RPM及以上的速度驱动时,设计用于以低扭矩波动运行的铰孔,具有从规格尺寸到鼻部区域弧形的轮廓,或者具有钝的直锥形截面,但是 轮廓长度(PL)与钻头尺寸(BS)的比值低于0.75。 刀片延伸到凹锥体中,并且切割结构沿着刀片朝向中心继续。 叶片具有靠近测量部分的台阶,以增加叶片切割结构的曝光。 平行于切割结构并在切割结构之后设置一组突起,以增加高速稳定性并且邻近叶片台阶转变以在运行时保护外壳。

    Turbine Driven Reaming Bit with Stability and Cutting Efficiency Features
    3.
    发明申请
    Turbine Driven Reaming Bit with Stability and Cutting Efficiency Features 有权
    涡轮驱动铰链钻头具有稳定性和切割效率的特点

    公开(公告)号:US20130180783A1

    公开(公告)日:2013-07-18

    申请号:US13349270

    申请日:2012-01-12

    IPC分类号: E21B10/26

    CPC分类号: E21B10/26 E21B10/42 E21B17/14

    摘要: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.

    摘要翻译: 当涡轮机以300-600RPM及以上的速度驱动时,设计用于以低扭矩波动运行的铰孔,具有从规格尺寸到鼻部区域弧形的轮廓,或者具有钝的直锥形截面,但是 轮廓长度(PL)与钻头尺寸(BS)的比值低于0.75。 刀片延伸到凹锥体中,并且切割结构沿着刀片朝向中心继续。 叶片具有靠近测量部分的台阶,以增加叶片切割结构的曝光。 平行于切割结构并在切割结构之后设置一组突起,以增加高速稳定性并且邻近叶片台阶转变以在运行时保护外壳。

    Turbine driven reaming bit with blades and cutting structure extending into concave nose
    4.
    发明授权
    Turbine driven reaming bit with blades and cutting structure extending into concave nose 有权
    涡轮驱动的铰刀带刀片和切割结构延伸到凹入的鼻子

    公开(公告)号:US08978787B2

    公开(公告)日:2015-03-17

    申请号:US13349246

    申请日:2012-01-12

    CPC分类号: E21B10/26 E21B7/20 E21B10/54

    摘要: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.

    摘要翻译: 当涡轮机以300-600RPM及以上的速度驱动时,设计用于以低扭矩波动运行的铰孔,具有从规格尺寸到鼻部区域弧形的轮廓,或者具有钝的直锥形截面,但是 轮廓长度(PL)与钻头尺寸(BS)的比值低于0.75。 刀片延伸到凹锥体中,并且切割结构沿着刀片朝向中心继续。 叶片具有靠近测量部分的台阶,以增加叶片切割结构的曝光。 平行于切割结构并在切割结构之后设置一组突起,以增加高速稳定性并且邻近叶片台阶转变以在运行时保护外壳。

    Turbine driven reaming bit with stability and cutting efficiency features
    5.
    发明授权
    Turbine driven reaming bit with stability and cutting efficiency features 有权
    涡轮驱动铰链钻头具有稳定性和切割效率的特点

    公开(公告)号:US08973685B2

    公开(公告)日:2015-03-10

    申请号:US13349270

    申请日:2012-01-12

    IPC分类号: E21B10/26

    CPC分类号: E21B10/26 E21B10/42 E21B17/14

    摘要: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.

    摘要翻译: 当涡轮机以300-600RPM及以上的速度驱动时,设计用于以低扭矩波动运行的铰孔,具有从规格尺寸到鼻部区域弧形的轮廓,或者具有钝的直锥形截面,但是 轮廓长度(PL)与钻头尺寸(BS)的比值低于0.75。 刀片延伸到凹锥体中,并且切割结构沿着刀片朝向中心继续。 叶片具有靠近测量部分的台阶,以增加叶片切割结构的曝光。 平行于切割结构并在切割结构之后设置一组突起,以增加高速稳定性并且邻近叶片台阶转变以在运行时保护外壳。

    Turbine Driven Reaming Bit with Profile Limiting Torque Fluctuation
    6.
    发明申请
    Turbine Driven Reaming Bit with Profile Limiting Torque Fluctuation 有权
    涡轮驱动铰链位与轮廓限制扭矩波动

    公开(公告)号:US20130180781A1

    公开(公告)日:2013-07-18

    申请号:US13349223

    申请日:2012-01-12

    IPC分类号: E21B10/54 E21B4/02 E21B10/42

    CPC分类号: E21B7/20 E21B10/26 E21B10/54

    摘要: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.

    摘要翻译: 当涡轮机以300-600RPM及以上的速度驱动时,设计用于以低扭矩波动运行的铰孔,具有从规格尺寸到鼻部区域弧形的轮廓,或者具有钝的直锥形截面,但是 轮廓长度(PL)与钻头尺寸(BS)的比值低于0.75。 刀片延伸到凹锥体中,并且切割结构沿着刀片朝向中心继续。 叶片具有靠近测量部分的台阶,以增加叶片切割结构的曝光。 平行于切割结构并在切割结构之后设置一组突起,以增加高速稳定性并且邻近叶片台阶转变以在运行时保护外壳。

    Method, system and computer program product for batched virtual memory remapping for efficient garbage collection of large object areas
    9.
    发明授权
    Method, system and computer program product for batched virtual memory remapping for efficient garbage collection of large object areas 失效
    用于批量虚拟内存重映射的方法,系统和计算机程序产品,用于大型对象区域的高效垃圾收集

    公开(公告)号:US08327111B2

    公开(公告)日:2012-12-04

    申请号:US12413661

    申请日:2009-03-30

    IPC分类号: G06F12/08 G06F12/00

    CPC分类号: G06F12/0253

    摘要: A method, system and computer program product for batched remapping of virtual memory addresses for garbage collection in a large object area. A mapping from a table having a first set of virtual memory addresses and sizes of non-contiguous, page-aligned large objects in a large object area to a remapping table having a second set of virtual memory addresses is determined. In a single batch, a request is received that includes the second set of virtual addresses and requests a remapping of the large objects to the second set of virtual memory addresses. The second set of virtual memory addresses is validated, and the large objects are remapped to the second set of virtual memory addresses according to the request. The remapping results in a compaction so that the large objects are contiguous in the large object area. The remapping does not require copying data in physical memory.

    摘要翻译: 一种方法,系统和计算机程序产品,用于在大对象区域中进行垃圾收集的虚拟内存地址的重新映射。 确定具有第一组虚拟存储器地址和大对象区域中不连续的页对齐的大对象的大小的表与具有第二组虚拟存储器地址的重映射表的映射。 在单个批次中,接收到包括第二组虚拟地址集的请求,并请求将大对象重新映射到第二组虚拟存储器地址。 验证第二组虚拟内存地址,并根据请求将大对象重新映射到第二组虚拟内存地址。 重新映射导致压缩,使得大对象在大对象区域中是连续的。 重映射不需要在物理内存中复制数据。