Apparatus for delivering drill pipe to a drill rig
First Claim
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1. An apparatus for delivering a tubular to a drill rig, the apparatus comprising:
- (a) a support frame having a horizontal ground section and a pivotally connected rig section;
(b) a catwalk platform having a first end pivotally connected to one end of the ground section, and a second end;
(c) a slide platform having a first end pivotally connected to the second end of the catwalk platform, and a second end pivotally and translationally connected to one end of the rig section;
(d) a skate or conveyor for moving the tubular along a path along the catwalk platform and the slide platform; and
(e) a piston assembly connected to either the catwalk platform or the slide platform, or both, to pivot the catwalk platform and the slide platform between a loading configuration and a delivery configuration;
wherein in the loading configuration, the catwalk platform is substantially horizontal and the slide platform is vertically inclined from the first end of the slide platform to the second end of the slide platform; and
wherein in the delivery configuration, the catwalk platform and the slide platform are in substantially coplanar alignment to define a single delivery platform from the first end of the catwalk platform to the second end of the slide platform.
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Abstract
An apparatus for delivering drill pipe has a support frame, a catwalk platform, and a slide platform that are pivotally connected together. A drill pipe rack, a chain drive, and a kicker direct the drill pipe to and from the catwalk platform. A hydraulically actuated piston lifts the catwalk platform and slide platform into alignment to create a single inclined delivery platform extending from the ground to the rig floor. A powered means lifts or lowers the drill pipe along the delivery platform.
25 Citations
23 Claims
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1. An apparatus for delivering a tubular to a drill rig, the apparatus comprising:
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(a) a support frame having a horizontal ground section and a pivotally connected rig section; (b) a catwalk platform having a first end pivotally connected to one end of the ground section, and a second end; (c) a slide platform having a first end pivotally connected to the second end of the catwalk platform, and a second end pivotally and translationally connected to one end of the rig section; (d) a skate or conveyor for moving the tubular along a path along the catwalk platform and the slide platform; and (e) a piston assembly connected to either the catwalk platform or the slide platform, or both, to pivot the catwalk platform and the slide platform between a loading configuration and a delivery configuration; wherein in the loading configuration, the catwalk platform is substantially horizontal and the slide platform is vertically inclined from the first end of the slide platform to the second end of the slide platform; and wherein in the delivery configuration, the catwalk platform and the slide platform are in substantially coplanar alignment to define a single delivery platform from the first end of the catwalk platform to the second end of the slide platform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification