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 be
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.
대표청구항▼
What is claimed is: 1. A rotary driven well drilling apparatus for installation of geothermal loops comprising: an erectable mast; a head drive unit capable of linear movement along the mast for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe sec
What is claimed is: 1. A rotary driven well drilling apparatus for installation of geothermal loops comprising: an erectable mast; a head drive unit capable of linear movement along the mast 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; a deck unit pivotally mounted on a turret attached to a set of tracks, the deck unit supporting the mast; and a mud pan attached to the deck unit to receive cuttings from the drilling operation; and wherein the apparatus is configured to: while the apparatus is in a first location, perform a first borehole drilling operation to form a first borehole at a second location; and perform a second borehole drilling operation to form a second borehole at a third location while the apparatus remains in the first location. 2. The apparatus of claim 1, wherein the apparatus is configured to: position the turret at the first location; perform the first borehole drilling operation such that the second location is a radial distance from the first location; and perform the second borehole drilling operation such that the third location is different from the second location and is located the radial distance from the first location. 3. The apparatus of claim 2, wherein the apparatus is configured to rotate the deck unit on the turret without moving the set of tracks to perform the second borehole drilling operation. 4. The apparatus of claim 3, wherein the apparatus is configured to rotate the deck unit while the mast is in an erected position. 5. The apparatus of claim 2, wherein the apparatus is configured to perform at least four borehole drilling operations to form the first and the second, and a third and a fourth borehole while the rig remains in the first location such that the first, second, third, and fourth boreholes are located the radial distance from the first location. 6. The apparatus of claim 5, wherein the first, second, third, and fourth boreholes are evenly spaced circumferentially around the first location. 7. The apparatus of claim 5, wherein the first, second, third, and fourth boreholes are each angled radially outward. 8. The apparatus of claim 1, wherein the apparatus is configured to perform a borehole drilling operation by: securing an attachment end of a first drill pipe to the head drive unit, the first drill pipe attachable to a drill bit; activating the pumping unit to deliver the fluid through the first drill pipe and the drill bit; activating the head drive unit to rotate the first drill pipe and move the unit along the mast to force the drill bit into the surface; and deactivating the head drive unit and pumping unit and detaching the head drive unit from the first drill pipe when the head drive unit reaches a lowermost position. 9. The apparatus of claim 8, wherein the apparatus is configured to perform the borehole drilling operation by: raising the head drive unit and securing a second drill pipe to the attachment end of the first drill pipe and to the head drive unit to form a drill string; reactivating the pumping unit to deliver the fluid through the string; reactivating the head drive unit to rotate the string; lowering the string further into the surface until the drill head drive unit reaches the lowermost position or until the string reaches a desired depth below the surface; and adding additional drill pipes to the drill string if the desired depth has not been reached. 10. The apparatus of claim 1, wherein at least one of the boreholes is drilled at an angle less than 90 degrees with respect to the surface. 11. The apparatus of claim 1, wherein each of the boreholes have a diameter of about four inches and a depth of about 200 feet. 12. A rotary driven well drilling apparatus for installation of geothermal loops comprising: a deck having an erectable mast attached thereto; a head drive unit to rotatably drive a number of drill pipes into a ground surface in order to form a geothermal borehole capable of housing a geothermal loop, the number of drill pipes forming a drill pipe string, and the head drive unit being attached to the erectable mast and capable of linear movement thereon; a pumping unit to deliver a fluid through the drill pipes during a drilling operation, the fluid being delivered through the inside of the drill pipes at a top end of the string and flowing upward toward the ground surface on the outside of the drill string after passing through a drill bit of the drill string; and a mud pan attached to the deck to receive cuttings from a drilling operation; wherein the deck is mounted on a turret attached to a set of tracks to drill a number of geothermal boreholes. 13. The apparatus of claim 12, wherein the apparatus includes a carousel attached to the mast for holding the number of drill pipes and wherein the head drive pivots to remove drill pipes from the carousel and return drill pipes to the carousel during the drilling operation. 14. The apparatus of claim 12, wherein the apparatus is configured such that the mast can remain in an erected position while the deck is rotated on the turret. 15. The apparatus of claim 12, wherein the turret includes an opening having a conduit passing therethrough, the conduit capable of attachment to a hose to provide a fluid source to the pumping unit. 16. The apparatus of claim 12, wherein the apparatus is configured such that the apparatus exerts a pressure of less than 20 pounds per square inch (psi) upon the ground surface. 17. The apparatus of claim 12, wherein the turret is positioned at a first location relative to the ground surface to drill a first geothermal borehole at a second location, wherein the second location is a radial distance from the turret, and wherein the turret is rotatable to rotate the deck while the turret remains at the first location to drill a second geothermal borehole at a third location, the third location being different than the second location and located the radial distance from the first location. 18. The apparatus of claim 12, wherein the deck is configured to rotate while the set of tracks remain stationary to drill the number of geothermal boreholes a radial distance from the turret. 19. A rotary driven well drilling apparatus for installation of geothermal loops comprising: a deck having an erectable mast attached thereto; a head drive unit movably attached to the mast and capable of linear movement thereon to rotatably drive a number of drill pipes into a ground surface by using a drive shaft having threads on a lower end for removably engaging threads on the number of drill pipes in a drill string in order to form geothermal boreholes; a pumping unit to deliver a drilling fluid to the head drive unit such that the drilling fluid passes through the lower end of the drive shaft and down through a drill bit end of the drill string during a drilling operation; and a mud pan attached at a rear portion of the deck to receive cuttings from a drilling operation; wherein the deck is rotatably mounted on a turret attached to a set of caterpillar tracks to perform a plurality of drilling operations at a first location of the turret relative to the ground surface in order to drill a plurality of geothermal boreholes a radial distance from the first location while the turret remains at the first location. 20. The apparatus of claim 19, wherein deck is configured to rotate on the turret through 360 degrees.
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이 특허에 인용된 특허 (11)
Haberer Johann (Schrobenhausen DEX), Anchor drilling implement.
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