| 摘要 |
A portable drilling rig including a carousel housing several drill pipe sections used in drilling oil, gas, or other wells into the earth. The carousel indexes the drill pipe sections as a mast raises and lowers a kelly, rotated by a top head. The kelly temporarily attaches to a stored drill pipe section and lowers it into the earth where the drill pipe section is connected to an existing drill string. This entire process is automated so that no human interaction with the actual drill pipe section is necessary. The entire carousel rig may be loaded onto a truck bed or other transportation device to be delivered to a site where drilling is to occur.
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