Invention Grant
- Patent Title: Drilling apparatus and system for drilling wells
- Patent Title (中): 钻井钻井设备及系统
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Application No.: US11904136Application Date: 2007-09-26
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Publication No.: US07673707B2Publication Date: 2010-03-09
- Inventor: Robert Charles Southard
- Applicant: Robert Charles Southard
- Agency: The Matthews Firm
- Main IPC: E21B17/00
- IPC: E21B17/00

Abstract:
A device for boring a well. The device is attached to a motor that has a power shaft for imparting rotational movement. The device comprises a driver operatively connected to the power shaft, with the driver containing a tubular body, a first bit having a first end connected to the driver so that rotational movement of the driver is imparted to the first bit, and a sleeve disposed about the power shaft, and wherein the sleeve has a radial shoulder. The device further comprises a housing disposed about the driver and a second bit attached to the housing. A plurality of nozzles is operatively placed within the driver, and the nozzles deliver fluid flow to the second bit. The device may further include a planetary gear anchored to the radial shoulder, and wherein the planetary gear is adapted for imparting rotation from the driver to the housing in a counter radial direction.
Public/Granted literature
- US20080217987A1 Drilling apparatus and system for drilling wells Public/Granted day:2008-09-11
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