Invention Grant
- Patent Title: Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
- Patent Title (中): 使用声波钻头和可移动或可回收钻头安装地热换热器，微孔和锚的方法和系统
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Application No.: US12372973Application Date: 2009-02-18
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Publication No.: US08118115B2Publication Date: 2012-02-21
- Inventor: Raymond J. Roussy
- Applicant: Raymond J. Roussy
- Agency: Berenato & White, LLC
- Main IPC: E21B7/24
- IPC: E21B7/24 ; E02D7/26
Abstract:
There is provided a method for drilling a cased hole and installing a micropile. A sonic drilling apparatus is positioned at a desired location. The sonic drilling apparatus includes a rotating and vibrating apparatus for rotating and vibrating a drill string into the ground. A retrievable drill bit is operatively connected to the drill string. The cased hole is drilled to a desired depth by rotating and vibrating the drill string into the ground. The retrievable drill bit is retrieved from the cased hole following the drilling of the cased hole to the desired depth. A micropile is lowered into the cased hole following the retrieval of the retrievable drill bit. Grouting material may be discharged into the cased hole before or after the drill string is removed from the ground. In another embodiment, a removable drill bit may be used in place of the retrievable drill bit.
Public/Granted literature
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