API SPEC 6A:2010 pdf download

API SPEC 6A:2010 pdf download.Specification for Wellhead and Christmas Tree Equipment.
3.1.4
adapter
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
3.1.5
annular pack-off
mechanism that seals off annular pressure between the outside diameter of a suspended tubular member or hanger and the inside diameter of the head or spool through which the tubular member passes or hanger is suspended
3.1.6
as-shipped condition
condition of the product or equipment when it is ready for shipment
3.1.7
back-pressure valve
unidirectional or bidirectional check valve that is installed through the christmas tree, into the tubing hanger, and prevents well fluids from flowing out of the well
3.1.8
blind flange
flange with no centre bore, used to close off completely a flanged end or outlet connection
3.1.9
body
any portion of wellhead and christmas tree equipment between end connections, with or without internal parts, which contains well-bore pressure
3.1.10
bonnet
pressure-containing closure for a body, other than an end or outlet connection
3.1.11
bottom casing pack-off
mechanism that seals off annular pressure between the outside diameter of a suspended tubular member or hanger and the inside diameter of the spool or tubing-head adapter placed over the suspended tubular or hanger
3.1.12
bullplug
pressure-containing closure for a female-threaded end or outlet connection, which may have an internal counter- bore and/or test port
3.1.13
calibration
comparison and adjustment to a standard of known accuracy
3.1.14
carbon steel
alloy of carbon and iron containing a maximum of 2 % mass fraction carbon, 1,65 % mass fraction manganese, and residual quantities of other elements, except those intentionally added in specific quantities for deoxidation (usually silicon and/or aluminium)
3.1.15
casing
pipe run from the surface and intended to line the walls of a drilled hole
3.1.16
casing hanger mandrel
mechanism used to support a casing string in a casing head by means of a male or female thread attached to the casing
3.1.17
casing-head housing
equipment attached to the uppermost end of the surface casing, which serves to suspend and seal a casing string
3.1.18
casing-head spool
equipment attached to another casing head, which serves to suspend and seal a secondary casing string
3.1.19
casting, noun
object at or near finished shape obtained by solidification of a fluid substance in a mould
NOTE HIP components are not considered to be a casting.
3.1.20
certificate of compliance
document containing the statement by the manufacturer, or repairer/remanufacturer certifying that the equipment, repair, rework or remanufacture meets the requirements of this International Standard
3.1.21
certificate of conformance
document certifying that the repaired/remanufactured equipment and all of its component parts meet the requirements of the original product definition
3.1.22
check valve
valve that permits fluid to flow freely in one direction and contains a mechanism to automatically prevent flow in the other direction
3.1.23
chemical analysis
determination of the chemical composition of material
3.1.24
choke
equipment used to restrict and control the flow of fluids
3.1.25
choke bean
flow bean
replaceable orifice part used in positive chokes to control flow rate
3.1.26
choke trim
pressure-controlling choke component, including choke beans, used to control or regulate the flow of fluids
3.1.27
christmas tree
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
3.1.28
clamp hub
protruding rim with an external angled shoulder and a sealing mechanism used to join pressure-containing equipment
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