Snubbing unit with improved slip assembly
OwnerDavid A. Buckinventor
Life of this patent
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Abstract
An improved snubbing unit including a snubbing unit base, a lifting assembly having a platform positioned above the base, a rotary table positioned on the snubbing unit, and a first slip assembly positioned on the rotary table. The first slip assembly further includes a base plate with a center aperture formed therein, at least two separate slip frames positioned on the base plate around the center aperture, wherein each of the slip frames includes a slip surface, and a die carrier positioned within each of the slip frames, wherein each of the die carriers also includes a surface for engagement with the slip surfaces of said slip frames. Additionally, a second slip assembly will be positioned on the snubbing unit.
Claims13
An improved snubbing unit comprising:
- a. a snubbing unit base;
- b. a lifting assembly having a platform positioned above said base;
- c. a rotary table positioned on said snubbing unit;
- d. a first slip assembly including:
- i. a base plate with a center aperture formed therein,
- ii. at least two opposing slip frames positioned on said base plate, each of said slip frames including a first planar slip surface and a second planar slip surface radially offset from said first slip surface and side frame sections;
- ii. a die carrier positioned within each of said slip frames, each of said die carriers also including first and second radially offset rear planar surfaces corresponding to said first and second slip surfaces of said slip frames;
- iii. upper and lower guide channel/follower assemblies positioned between said side frame sections and said die carriers;
- and
- e. a second slip assembly positioned on said snubbing unit.
Dependencies are inferred from the claim text.