Документы

American Petroleum Institute

Specification for Wellhead and Christmas Tree Equipment - TWENTIETH EDITION; Effective April 1, 2011; Incorporating ERTA 1: January 2011; ADDENDUM 1: November 2011; ERTA 2: November 2011; ADDENDUM 2: November 2012; ADDENDUM 3: March 2013; ERTA 3: June 2013; ERTA 4: August 2013; ERTA 5: November 2013; ISO 10423:2009 Adoption
 N SPEC 6A

Annotation

—Purpose

This International Standard specifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, purchasing, repair and remanufacture of wellhead and christmas tree equipment for use in the petroleum and natural gas industries.

This International Standard does not apply to field use, field testing or field repair of wellhead and christmas tree equipment.

Applicability

This International Standard is applicable to the following specific equipment:

a) wellhead equipment:

— casing-head housings,

— casing-head spools,

— tubing-head spools,

— cross-over spools,

— multi-stage head housings and spools;

b) connectors and fittings:

— cross-over connectors,

— tubing-head adapters,

— top connectors,