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1. (WO2017040198) Blowout Preventer with Shear Ram

Pub. No.:    WO/2017/040198    International Application No.:    PCT/US2016/048652
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Aug 26 01:59:59 CEST 2016
IPC: E21B 33/06
E21B 33/068
Applicants: CAMERON INTERNATIONAL CORPORATION
Inventors: ARAUJO, Raul
LAMBERT, Jeffrey
Title: Blowout Preventer with Shear Ram
Abstract:
A blowout preventer may be used for shearing an object positioned in a vertical bore extending through the blowout preventer. The blowout preventer includes a shear ram movable towards the tubular, the shear ram including a biasing mechanism for biasing against an interior surface of the blowout preventer body. In this way, the biasing mechanism urges the shear ram into axial engagement with an opposing shear ram movable towards the tubular during shearing operations. The biasing mechanism comprises a biasing member, such as a coiled spring, coned-disc spring, and/or coned-disc washer which urges the biasing mechanism into contact with the inner portion of the blowout preventer body.