API SPEC 11IW Standard for Exploration & Production
This specification was formulated to provide for the availability of safe, dimensionally and functionally interchangeable independent wellhead equipment. The technical content provides requirements for performance, design, materials, testing, inspection, welding, marking, handling, storing and shipping.
This specification covers the independent wellhead equipment utilized for pressure control systems for the production of oil and gas. Specific equipment covered by this specification is listed as follows:
- Independent wellheads.
- Top connectors.
- Tubing and casing slip hangers.
- Tubing and cashing mandrel hangers.
- Belled nipples.
- Connector flanges.
- Stripper adapters.
The typical equipment nomenclature used in this specification is shown in Figures 1, 2, 3, and 4.
Service conditions refer to classifications for pressure, temperature, and the various well-bore fluid and operating conditions.
Pressure ratings indicate rated working pressures expressed as gage pressure (psig).
Temperature rating indicates the temperature range, from minimum ambient to maximum flowing fluid temperature, expressed in degrees Fahrenheit (degrees F).
Materials Class Rating
Materials class rating indicates the material of the equipment components.
- $ 80.00
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