Bolsters for degradation picks
AssigneeSchlumberger Technology Corporation
InventorsRonald Crockett, Francis E. Leany, Dwain Norris, Braeden Brown
Life of this patent
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Abstract
A bolster for a degradation pick includes a transverse cross section that is non-circular. Non-circular cross sections include square, triangular, hexagonal and other shapes. The bolster is made from a wear and/or erosion resistant material. The wear and/or erosion resistant material helps to protect the shank of the degradation pick. The bolster has a matching shape to the shape of the shank of the degradation pick.
Claims14
A bolster for a degradation pick with a pick body having an upper surface and a bolster support extending from the upper surface, the bolster comprising:
- a bolster body including a first end, the first end configured to couple to the pick body upper surface at a first interface;
- wherein the bolster body further includes:
- a bolster cap;
- a bolster extension extending in a first direction from a first portion of a bottom of the bolster cap to the first end, the bolster extension including a side face between the bottom of the bolster cap and the first end, the side face configured to couple to the bolster support of the pick body at a second interface;
- and
- a protrusion extending in the first direction from a second portion of the bottom of the bolster cap and extending in a second direction from the side face;
- wherein the bolster extension extends in the first direction to a level beyond a level to which the protrusion extends.
Dependencies are inferred from the claim text.