Fiber reinforced elastomer anisotropic annular blowout preventer

摘要

A packer unit for an annular blowout preventer including an annular elastomer body including an elastomer having a unidirectional grain and a quantity of fiber longitudinally aligned with the grain of the elastomer. A method of forming a packing unit for a blowout preventer including forming a fiber reinforced elastomer by aligning fibers with a grain of an elastomer; cutting a portion from the fiber reinforced elastomer in the direction of the grain; loading the cut portion in a packing unit mold such that the grain of the fiber reinforced elastomer of the cut portion is parallel to a packing unit axis; and heating the loaded packing unit mold.

主权项

1. A packer unit for an annular blowout preventer, the packer unit comprising:
an annular elastomer body comprising an elastomer having a unidirectional grain that is arranged in a direction parallel with an axis of the blowout preventer; a bore extending through the annular elastomer body and defining a longitudinal axis; and a quantity of fibers longitudinally aligned with both the grain of the elastomer and with the longitudinal axis.