Pressure-containing piece of equipment having end connections of different nominal sizes and/or pressure ratings, used to connect other pieces of equipment of different nominal sizes and/or pressure ratings
Alloy of carbon and iron containing a maximum of 2% carbon (mass fraction), 1.65% manganese (mass fraction), and residual quantities of other elements, except those intentionally added in specific quantities for deoxidation (usually silicon and/or aluminium)
Any portion of wellhead and christmas tree equipment between end connections, with or without internal parts, which contains well-bore pressure
Also referred to as a 2" Max Masterbean or a 2" Max Bean/Seat Adapter. These are commonly used to reduce a 2" Max to 1" Max or to an OCT bean. If you need to reduce the flow in a 2" Max but don't want to replace the entire choke, a cost effective solution is to use a "Bushing".
Equipment used to restrict and control the flow of fluids
According to the API Specification 6 section 10:
10.9.1 General Positive and adjustable chokes are chokes which include restrictions or orifices to control the flowrate of fluids. Chokes are not intended to be used as shutoff valves.
a) Adjustable chokes Adjustable chokes have an externally controlled variable-area orifice coupled with an orifice-area-indicating mechanism as shown in Figure 20. Actuators for adjustable chokes are covered under 10.16.
b) Positive chokes Positive chokes accommodate replaceable parts having fixed orifice dimensions, which are commonly called flow beans.
Pressure-controlling choke component, including choke beans, used to control or regulate the flow of fluids
NOTE One-piece stems, and that segment of multi-piece stems that passes through the pressure boundary, are pressurecontaining components
Assembly of equipment, including tubing head adapters, valves, tees, crosses, top connectors and chokes attached to the uppermost connection of the tubing head, used to control well production
Protruding rim with holes to accept bolts and having a sealing mechanism used to join pressure-containing equipment, with dimensions specified in this International Standard
Device which penetrates directly into or communicates with the wellbore and is not defined elsewhere in this International Standard
EXAMPLES Grease or sealant injection fitting; check valve; control, test or gauge port plug and fitting, needle valve on test, gauge or injection port; electric and control line penetration.
Part whose failure to function as intended would result in a release of retained fluid to the atmosphere
EXAMPLES Bodies, bonnets and stems.
Part intended to control or regulate the movement of pressurized fluids
EXAMPLES Valve bore sealing mechanisms, choke trim and hangers.
Often, the term "retainer ring" includes several rings: a physical retainer ring, snap ring, spirolox ring and a packing reatainer. Also referred to as "Ret Rings".
Steel containing more than 11 % chromium (mass fraction) to render the steel corrosion-resistant
NOTE Other elements may be added to secure special properties.
Pressure-containing fitting with three openings
NOTE Two openings opposite one another form the run portion of the tee, and one opening is at 90° to the line of the run. Tees may be equipped with threads, flanges, studs or other end connectors.
Cap or insert used to protect threads and seals during handling, transportation and storage. Additionally, at Global Energy Products, a "Thread Protector" is a bean that has been drilled out to 64/64". Often, it is used when a choke is fully open (the bean has been removed) to protect threads from getting "washed out" or damaged from abrasives.