API SPEC 14A

Anotácia textu normy API SPEC 14A :

This specification provides the requirements for subsurface safety valves (SSSVs), annular safety valves (ASVs) and the secondary tools as defined herein necessary to operate the features included within them, including all components that establish tolerances and/or clearances that may affect performance or interchangeability of the SSSV or ASV components. It includes repair operations and the interface connections to control conduits and/or other equipment but does not cover the connections to the primary well conduit.NOTE      The SSSV and ASV are emergency fail-safe devices. The products covered within this specification are installed and operated to the requirements of API 14B. This specification does not cover installation, maintenance, control systems for SSSV or ASV, computer systems, and control conduits not integral to the downhole SSSV or ASV. Also not included are products covered under API 6A, API 11D1, API 14L, API 17C, API 19G, API 19AC, API 19V, and other products with API specifications.This specification only covers ASVs which are surface controlled.Repair activities for SSSVs, ASVs, and secondary tools, conducted after final manufacturing is complete and product is shipped are covered by this specification. Redress activities for SSSVs, ASVs, and secondary tools are addressed in API 14B and are outside the scope of this specification. See more