Support apparatus for supporting down hole rotary tools
DCFirst Claim
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1. A portable mast assembly comprising:
- (a) a skid assembly having a horizontally oriented frame having at least two longitudinally extending support beams;
(b) a mast assembly having at least two longitudinally extending mast beams, each of said at least two longitudinally extending mast beams supporting a vertically extending column, each of said at least two longitudinally extending mast beams positioned and supported by one of said at least two longitudinally extending support beams of said horizontally oriented frame;
(c) means for moving said at least two longitudinally extending mast beams along said at least two longitudinally extending support beams of said horizontally oriented frame; and
(d) a lateral support that connects one of the vertically extending columns to another one of the vertically extending columns, the lateral support having a generally U-shaped opening as viewed from above.
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Abstract
A portable mast assembly is comprised of a skid assembly having a horizontally oriented frame comprised of longitudinally extending support beams and a mast assembly having at least two vertically extending columns that are supported directly upon a longitudinally extending mast beam without an intervening track or roller. A means for moving the mast beams along the top of the extending support beams of the frame without a roller is provided.
26 Citations
20 Claims
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1. A portable mast assembly comprising:
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(a) a skid assembly having a horizontally oriented frame having at least two longitudinally extending support beams; (b) a mast assembly having at least two longitudinally extending mast beams, each of said at least two longitudinally extending mast beams supporting a vertically extending column, each of said at least two longitudinally extending mast beams positioned and supported by one of said at least two longitudinally extending support beams of said horizontally oriented frame; (c) means for moving said at least two longitudinally extending mast beams along said at least two longitudinally extending support beams of said horizontally oriented frame; and (d) a lateral support that connects one of the vertically extending columns to another one of the vertically extending columns, the lateral support having a generally U-shaped opening as viewed from above. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A portable mast assembly comprising:
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(a) a horizontally oriented frame having at least two longitudinally extending support beams; (b) at least two longitudinally extending mast beams, each of said at least two longitudinally extending mast beams being positioned and supported by one of said at least two longitudinally extending support beams of said horizontally oriented frame; (c) a vertically extendable and retractable column supported upon each of said at least two longitudinally extending mast beams; (d) at least one horizontally oriented actuator having an extendible and retractable rod whereby extension and retraction of said rod will move said at least two longitudinally extending mast beams along said at least two longitudinally extending support beams; and (e) at least two vertically oriented actuators, each of said at least two vertically oriented actuators having an extendible and retractable rod whereby extension and retraction of said extendible and retractable rods extends and retracts said vertically extendable and retractable columns; and (f) a lateral support that connects one of the vertically extending columns to another one of the vertically extending columns, the lateral support having a generally U-shaped opening as viewed from above. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A portable mast assembly comprising:
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(a) a skid assembly having a horizontally oriented frame having longitudinally extending support beams having a top surface; (b) a mast assembly having at least two vertically extendable and retractable columns, each of said vertically extendable and retractable columns supported on a corresponding longitudinally extending mast beam, each said longitudinally extending mast beam positioned upon and supported by one of said longitudinally extending support beams of said frame; and (c) at least one horizontally oriented actuator having an extendible and retractable rod, said horizontally oriented actuator mounted between said skid assembly and said mast assembly whereby extension and retraction of said rod of horizontally oriented actuator will slide said longitudinally extending mast beams of said mast assembly along said longitudinally extending support beams of said horizontally oriented frame; and (d) a lateral support that connects one of the vertically extending columns to another one of the vertically extending columns, the lateral support having a generally U-shaped opening as viewed from above. - View Dependent Claims (20)
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Specification