Annular Isolators for Expandable Tubulars in Wellbores
    6.
    发明申请
    Annular Isolators for Expandable Tubulars in Wellbores 有权
    在井筒中扩张管的环形隔离器

    公开(公告)号:US20070114019A1

    公开(公告)日:2007-05-24

    申请号:US11624753

    申请日:2007-01-19

    IPC分类号: E21B23/02

    摘要: The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

    摘要翻译: 本公开涉及在安装生产管道之后在钻孔中形成环形隔离器的装置和方法。 当环形密封装置进入钻孔时,环形密封装置被运送在生产管道中或上。 结合管道的膨胀,将密封件展开以形成环形隔离器。 管道上承载的可膨胀元件可以在管道中承载的流体膨胀,并在管道膨胀期间被迫进入可充气元件。 反应性化学物质可以在管道中携带并注入到环形空间中以相互反应并且环境流体增加体积并硬化成环形密封。 管道上承载的弹性体套筒,环或带可以膨胀成与钻孔壁接触,并且可以使其径向尺寸与管道膨胀一起增加以形成环形隔离器。

    Drill bit having an improved seal and lubrication method using same
    8.
    发明申请
    Drill bit having an improved seal and lubrication method using same 失效
    钻头采用改进的密封和润滑方法

    公开(公告)号:US20050109544A1

    公开(公告)日:2005-05-26

    申请号:US10717742

    申请日:2003-11-20

    IPC分类号: E21B10/22 E21B10/25 E21B10/00

    CPC分类号: E21B10/25

    摘要: A drill bit (100) for drilling a wellbore that traverses subterranean formations includes a drill bit body (106) having a plurality of journal pins (112), each having a bearing surface (128), and a rotary cutter (104) rotatably mounted on each journal pin (112), each rotary cutter (104) including a bearing surface (126). A pressure-compensated reservoir (130) is in fluid communication with the bearing surfaces (126, 128) and has a lubricant therein. A seal element (144) is positioned between each journal pin (112) and rotary cutter (104) and retains the lubricant in the bearing surfaces (126, 128). The seal element (144) is formed from a nanocomposite material including a polymer host material and a plurality of nanostructures.

    摘要翻译: 用于钻穿穿过地下地层的井筒的钻头(100)包括钻头体(106),钻头体(106)具有多个轴颈销(112),每个轴承销具有支承表面(128)和旋转切割器(104) 在每个轴颈销(112)上,每个旋转切割器(104)包括轴承表面(126)。 压力补偿储存器(130)与支承表面(126,128)流体连通并且在其中具有润滑剂。 密封元件(144)定位在每个轴颈销(112)和旋转切割器(104)之间,并将润滑剂保持在轴承表面(126,128)中。 密封元件(144)由包括聚合物主体材料和多个纳米结构的纳米复合材料形成。

    Downhole seal element formed from a nanocomposite material
    9.
    发明申请
    Downhole seal element formed from a nanocomposite material 审中-公开
    由纳米复合材料形成的井下密封元件

    公开(公告)号:US20050109502A1

    公开(公告)日:2005-05-26

    申请号:US10717814

    申请日:2003-11-20

    IPC分类号: E21B33/10 E21B23/00

    CPC分类号: C08J5/005 B82Y30/00 E21B33/10

    摘要: A seal element (70) for providing a static or dynamic seal between two components (74, 78) in a downhole tool includes a polymer host material (212) and a plurality of nanostructures (220) forming a nanocomposite material (210). The polymer host material (212) has a plurality of regions of free volume (222) that receive the nanostructures (220). The nanostructures (220) and the polymer host material (212) form interfacial interactions that improve the useful life of the seal element (70) by minimizing seal failures associated with explosive decompression, extrusion, spiral failure, abrasion, temperature degradation and the like.

    摘要翻译: 用于在井下工具中的两个部件(74,78)之间提供静态或动态密封的密封元件(70)包括聚合物主体材料(212)和形成纳米复合材料(210)的多个纳米结构(220)。 聚合物主体材料(212)具有容纳纳米结构(220)的多个自由体积(222)的区域。 纳米结构(220)和聚合物主体材料(212)形成界面相互作用,通过最小化与爆炸减压,挤出,螺旋破坏,磨损,温度降解等相关联的密封故障来改善密封元件(70)的使用寿命。

    Radiation-shielding container
    10.
    发明申请
    Radiation-shielding container 失效
    防辐射容器

    公开(公告)号:US20070129591A1

    公开(公告)日:2007-06-07

    申请号:US11296242

    申请日:2005-12-07

    IPC分类号: G21F9/00 G21F1/00 A61M5/32

    摘要: A radiation-shielding container for storing a syringe includes a body assembly and a cap assembly securable to the body assembly such that first and second chamber portions define a chamber for storing the syringe. The body assembly includes a body shield formed of radiation shielding material, a body shell that defines a first cavity having an open end for receiving the body shield and defines a first chamber portion for receiving a portion of the syringe, wherein an inner wall of the body shell separates the first cavity and the first chamber portion, and a body plug secured to the body shell to cover the open end of the first cavity and retain the body shield within the first cavity. The cap assembly includes a cap shield formed of radiation shielding material, a cap shell that defines a second cavity having an open end for receiving the cap shield and defines a second chamber portion for receiving a portion of the syringe, wherein an inner wall of the cap shell separates the second cavity and the second chamber portion, and a cap plug secured to the cap shell to cover the open end of the second cavity and retain the cap shield within the second cavity.

    摘要翻译: 用于存储注射器的辐射屏蔽容器包括主体组件和可组装到主体组件上的盖组件,使得第一和第二室部分限定用于存储注射器的腔室。 身体组件包括由辐射屏蔽材料形成的身体护罩,身体壳体,其限定具有用于接收身体护罩的开口端的第一腔体,并且限定用于容纳注射器的一部分的第一腔室部分,其中, 主体壳体分离第一腔体和第一腔室部分,以及主体塞子,其固定到主体壳体以覆盖第一腔体的开口端并将身体护罩保持在第一腔体内。 盖组件包括由辐射屏蔽材料形成的盖屏蔽,帽壳限定具有用于接收盖罩的开口端的第二腔,并限定用于容纳注射器的一部分的第二腔室部分,其中, 帽壳分离第二腔体和第二腔室部分,以及帽塞,其固定到盖壳体以覆盖第二腔体的开口端并将盖罩保持在第二腔体内。