Invention Grant
- Patent Title: Geothermal heat loop installation
- Patent Title (中): 地热环路安装
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Application No.: US12233963Application Date: 2008-09-19
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Publication No.: US07644785B2Publication Date: 2010-01-12
- Inventor: Joseph W. Stevens
- Applicant: Joseph W. Stevens
- Agency: Brooks, Cameron & Huebsch, PLLC
- Main IPC: E21B7/02
- IPC: E21B7/02 ; E21B19/08 ; E21B41/00

Abstract:
Methods and apparatuses associated with a rotary driven well drilling rig. One method includes providing a rig having: an erectable mast; a head drive unit for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secured to the head drive, the fluid being forced out a bottom end of the drill pipe and up to the surface along the outside of the drill pipe during a borehole drilling operation; and a deck unit pivotally mounted on a turret attached to a set of tracks. This method embodiment includes, while the rig is in a first location, performing a first borehole drilling operation to form a first borehole at a second location; and performing a second borehole drilling operation to form a second borehole at a third location while the rig remains in the first location.
Public/Granted literature
- US20090014216A1 GEOTHERMAL HEAT LOOP INSTALLATION Public/Granted day:2009-01-15
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