ISO/TC 67/SC 4/WG 3 - Wellhead and Christmas tree equipment

ISO 10423:2009 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. ISO 10423:2009 does not apply to field use, field testing or field repair of wellhead and christmas tree equipment. ISO 10423:2009 is applicable to specific types of wellhead equipment, connectors and fittings; casing and tubing hangers; valves and chokes; loose connectors [flanged, threaded, other end connectors (OEC), and welded]; and other equipment, such as actuators, clamp hubs, pressure boundary penetrations, ring gaskets, running and testing tools and wear bushings. The nomenclature is defined and most physical dimensions are given in USC as well as metric units. ISO 10423:2009 defines service conditions, in terms of pressure, temperature and material class for the well-bore constituents, and operating conditions. ISO 10423:2009 establishes requirements for five product specification levels, PSL 1, 2, 3, 3G and 4. These five PSL designations define different levels of technical quality requirements. Guidelines (not requirements) are provided for selecting an acceptable PSL.

ISO 10423:2003 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. ISO 10423:2003 does not apply to field use, field testing or field repair of wellhead and christmas tree equipment. ISO 10423:2003 is applicable to wellhead equipment (casing head housings, casing head spools, tubing head spools, cross-over spools, multi-stage head housings and spools), connectors and fittings (cross-over connectors, tubing head adapters, top connectors, tees and crosses, fluid-sampling devices, adapter and spacer spools), casing and tubing hangers (mandrel hangers, slip hangers), 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), 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), other equipment (actuators, hubs, pressure boundary penetrations, ring gaskets, running and testing tools, wear bushings). ISO 10423:2003 defines service conditions, in terms of pressure, temperature and material class for the well-bore constituents, and operating conditions. ISO 10423:2003 establishes requirements for five product specification levels (PSL). These five PSL designations define different levels of technical quality requirements. It also provides guidelines (not requirements) for selecting an acceptable PSL.

Provides for the availability of safe, dimensionally and functionally interchangeable wellhead and christmas tree equipment by laying down the requirements for performance, design, materials, testing, inspections, welding, marking, handling, storing and shipping.

Requirements are specified in API Specification 14D (API Spec 14D), ninth edition, June 1 1994, which is adopted as ISO 10433. For the purposes of international standardization, however, modifications shall apply to specific clauses and paragraphs of publication API Spec 14D. These modifications are outlined.

Provides guidance for inspecting, installing, operating, maintaining and repairing surface safety valves and underwater safety valves. Requirements are specified in API Recommended Practice 14H (RP 14H), third edition, August 1, 1991 which is adopted as ISO 10419. For the purposes of international standardization, modifications shall apply to specific clauses and paragraphs of API RP 14H. These modifications are outlined.