The IADC Lexicon is an oil and gas dictionary of upstream-related terms, which, unlike conventional glossaries, are official definitions drawn from legislation, regulation and regulatory guidance, standards (global, national and regional), IADC guidelines, and Well Control Institute. Terms often have multiple definitions from different sources.
This October’s Featured Term is:
“Subsurface Safety Valve (SSSV)” (Source:API SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). Global Standards):
Device whose design function is to prevent uncontrolled well flow when closed. NOTE SSSVs can be installed and retrieved by wireline or pump-down methods (wireline retrievable) or be an integral part of the tubing string (tubing-retrievable).