Definition(s)
BSR
Bending-strength ratio.
Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards
BSR
Blind shear ram.
Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards
Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global Standards
BSR
Bending strength ratio.
Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards