API SPEC 6A-2010 pdf download.Specification for Wellhead and Christmas Tree Equipment.
1 Scope 1.1 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. 1.2 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, ⎯ tees and crosses, ⎯ fluid-sampling devices, ⎯ adapter and spacer spools; c) casing and tubing hangers: ⎯ mandrel hangers,⎯ slip hangers; d) valves and chokes: ⎯ single valves, ⎯ multiple valves, ⎯ actuated valves, ⎯ valves prepared for actuators, ⎯ check valves, ⎯ chokes, ⎯ surface and underwater safety valves and actuators, ⎯ back-pressure valves; e) loose connectors [flanged, threaded, other end connectors (OEC), and welded]: ⎯ weld neck connectors, ⎯ blind connectors, ⎯ threaded connectors, ⎯ adapter and spacer connectors, ⎯ bullplugs, ⎯ valve-removal plugs; f) other equipment: ⎯ actuators, ⎯ clamp hubs, ⎯ pressure boundary penetrations, ⎯ ring gaskets, ⎯ running and testing tools (see Annex H), ⎯ wear bushings (see Annex H). The nomenclature used in this International Standard for typical equipment is shown in Figures 1 and 2. All parts whose physical dimensions conform to the metric tables incorporated into the body of this International Standard or to the tables in USC units in Annex B are acceptable; see Introduction. 1.3 Service conditions This International Standard defines service conditions, in terms of pressure, temperature and material class for the well-bore constituents, and operating conditions.
2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 31-0, Quantities and units — Part 0: General principles ISO 148 (all parts), Metallic materials — Charpy pendulum impact test ISO 2859-1:1999, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection ISO 6506 (all parts), Metallic materials — Brinell hardness test ISO 6507 (all parts), Metallic materials — Vickers hardness test ISO 6508 (all parts), Metallic materials — Rockwell hardness test ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature ISO 9712, Non-destructive testing — Qualification and certification of personnel ISO 10414-1, Petroleum and natural gas industries — Field testing of drilling fluids — Part 1: Water-based fluids ISO 10424-1:2004, Petroleum and natural gas industries — Rotary drilling equipment — Part 1: Rotary drill stem elements ISO 11960, Petroleum and natural gas industries — Steel pipes for use as casing or tubing for wells ISO 13533, Petroleum and natural gas industries — Drilling and production equipment — Drill-through equipment ISO 13628-4, Petroleum and natural gas industries — Design and operation of subsea production systems — Part 4: Subsea wellhead and tree equipment ISO 13678, Petroleum and natural gas industries — Evaluation and testing of thread compounds for use with casing, tubing, line pipe and drill stem elements ISO 15156 (all parts), Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production
ASME B1.2, Gages and Gaging for Unified Inch Screw Threads ASME B1.3, Screw Thread Gaging Systems for Acceptability: Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ) ASME B1.5, ACME Screw Threads ASME B1.20.1, Pipe Threads, General Purpose (Inch) ASME Boiler and Pressure Vessel Code:2004 with 2005 and 2006 addenda, Section V, Nondestructive Examination ASME Boiler and Pressure Vessel Code:2004 with 2005 and 2006 addenda, Section VIII, Division 1, Rules for Construction of Pressure Vessels ASME Boiler and Pressure Vessel Code:2004 with 2005 and 2006 addenda, Section VIII, Division 2, Alternative Rules ASME Boiler and Pressure Vessel Code:2004 with 2005 and 2006 addenda, Section IX, Welding and Brazing Qualifications ASNT 3) SNT-TC-1A, Non-Destructive Testing ASTM 4 ) A193/A193M, Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications ASTM A194/A194M, Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both ASTM A320/A320M, Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low- Temperature Service ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products