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    • 4. 发明申请
    • Workstring and a method for gravel packing
    • 工作串和砾石包装方法
    • US20050139355A1
    • 2005-06-30
    • US10999791
    • 2004-11-30
    • Martin CoronadoRami JasserJohn SalerniJames Zachman
    • Martin CoronadoRami JasserJohn SalerniJames Zachman
    • E21B43/04E21B43/10
    • E21B43/10E21B43/04
    • Disclosed is a workstring for use in a gravel packing system. The workstring includes a washpipe with at least one port and a selectively openable and closeable closure mechanism in operable communication with the at least one port. Further disclosed is a collet having a collet base and a plurality of collet fingers extending from the collet base. At least one of the collet fingers includes retaining feature, the retaining feature being configured to yield under bending at a selected valve. Yet further disclosed is a method for gravel packing. The method includes gravel packing a wellbore including opening one or more valves in a washpipe as pressure associated with the gravel packing climbs, the valves providing an escape path for a fluid component of the gravel pack to an inside dimension of the washpipe. The method further includes closing the one or more valves in the washpipe.
    • 公开了一种用于砾石包装系统的工作绳。 工作绳包括具有至少一个端口和可选择地可打开和可关闭的闭合机构的洗涤管,其与所述至少一个端口可操作地连通。 进一步公开了一种夹头,其具有从夹头基部延伸的夹头基部和多个夹头。 夹头指中的至少一个包括保持特征,保持特征被配置为在所选择的阀处弯曲屈服。 还公开了一种用于砾石包装的方法。 该方法包括砾石填充井筒,包括在冲洗管中打开一个或多个阀,作为与砾石填料爬升相关联的压力,所述阀为砾石填料的流体组分提供到冲洗管的内部尺寸的逃逸路径。 该方法还包括关闭洗涤管中的一个或多个阀。
    • 7. 发明申请
    • ELECTRO-MECHANICAL SYSTEMS FOR ENABLING THE HEARING IMPAIRED AND THE VISUALLY IMPAIRED
    • 电子机械系统,用于使听力受损和视觉受损
    • US20070041600A1
    • 2007-02-22
    • US11382629
    • 2006-05-10
    • James Zachman
    • James Zachman
    • H04R25/00
    • A61F11/045A61F9/08
    • A system for enabling the hearing impaired comprises a plurality of servo actuators each associated with a particular segment of a predetermined frequency domain. The servo actuators drive tactile stimulators which engage the skin of the hearing impaired person in patterns that are unique to individual inputs thereby enabling the hearing impaired person to “hear” signals within the defined frequency domain. An electromechanical system for enabling the visually impaired comprises a two dimension array of servo actuators which respond to optical sensors and which actuate tactile stimulators thereby identifying objects in the path of the visually impaired person.
    • 用于使听力受损的系统包括多个伺服致动器,每个伺服致动器与预定频域的特定段相关联。 伺服致动器驱动触觉刺激器,其以单个输入独特的模式接触听力受损的人的皮肤,从而使听力受损的人能够“听到”定义的频域内的信号。 用于使视觉受损的机电系统包括伺服致动器的二维阵列,其响应于光学传感器并且致动触觉刺激器从而识别视障者的路径中的物体。