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US 2015/0308229 A1Published application
Downhole Apparatus and Method
AssigneePetrowell Limited
InventorsDamien Gerard Patton, Oliver Webster, Daniel George Purkis
Life of this patent
Estimating the term…
Abstract
A downhole apparatus (10) for use in activating a downhole tool (T). The apparatus (10) comprises a seat (18) configured to receive an object, such as a ball (16). The seat (18) comprises a convex object engaging surface (24) for engaging the object.
Claims51
A downhole apparatus or tool comprising:
- a seat configured to receive an object, the seat comprising a convex object engaging surface.
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A method of constructing a downhole apparatus comprising:
- providing a seat configured to receive an object;
- and
- providing a convex object engaging surface on the seat.
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Dependencies are inferred from the claim text.