US 10,309,182 B2 · Annular blowout preventer apparatus

Abstract

The present disclosure generally relates to an annular blowout preventer (“BOP”) apparatus for sealing a wellbore. In particular, the annular BOP includes a body comprising a vertical bore extending therethrough, an upper packing element located in the body, a lower packing element located in the body and spaced axially from the upper packing element, and a piston configured to move the upper and lower packing elements radially with respect to the vertical bore. The annular BOP provides for bi-directional sealing across the annular BOP. In other embodiments, the annular BOP may include only a single packing element configured to provide for bi-directional sealing across the annular BOP.

Claims18

Dependent claims

An annular blowout preventer (“BOP”) apparatus, comprising:

a housing comprising a bore extending therethrough;
a first packing element located in the housing, the first packing element comprising a first elastomeric body and a first plurality of inserts embedded within the first elastomeric body;
a second packing element located in the housing and spaced axially from the first packing element, the second packing element comprising a second elastomeric body and a second plurality of inserts embedded within the second elastomeric body, wherein the first plurality of inserts and the second plurality of inserts are physically separate from one another;
and
a piston configured to move the first and second packing elements radially with respect to the bore.

2 more elements

Dependencies are inferred from the claim text.

Annular blowout preventer apparatus

Life of this patent

Annular blowout preventer apparatus

Life of this patent

Abstract

Claims18