公开(公告)号：US20140262339A1

公开(公告)日：2014-09-18

申请号：US13838277

申请日：2013-03-15

申请人： Kenneth Michael Nero ,  David Earl Barker

发明人： Kenneth Michael Nero ,  David Earl Barker

IPC分类号： E21B17/10

CPC分类号： E21B47/011

摘要： A drill string is comprised of a tubular element and an elastomeric element. The tubular element has an interior surface and a longitudinal axis. The elastomeric element is positioned on the interior surface of the tubular element, and includes one or more ribs extending from the interior surface of the tubular element and arranged in a configuration that diverges from the longitudinal axis of the tubular element. The ribs form an opening within the tubular element having a diameter of a preselected size substantially similar to a diameter of a tool to be positioned therein.

摘要翻译： 钻柱由管状元件和弹性元件构成。 管状元件具有内表面和纵向轴线。 弹性体元件定位在管状元件的内表面上，并且包括从管状元件的内表面延伸并且以从管状元件的纵向轴线分叉的构造布置的一个或多个肋。 肋形成管状元件内的开口，其具有基本上类似于要定位在其中的工具的直径的预选尺寸的直径。