Glossary
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Flange
Definition(s)
Flange
Protruding rim, with holes to accept bolts and having a sealing mechanism, used to join pressure-containing equipment with dimensions specified in this specification. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global StandardsFlange
Protruding rim, with holes to accept bolts and having a sealing mechanism, used to join pressure-containing equipment with dimensions specified in this standard.
Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global StandardsFlange
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. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsFlange
Protruding rim, with holes to accept bolts and having a sealing mechanism, used to join pressure-containing equipment together by bolting to another flange. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsFlange
A protruding rim with holes to accept bolts and having a sealing mechanism wed to join pressure containing equipment, and with dimensions specified by API. Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global StandardsFabrication Weld
Definition(s)
Fabrication Weld
Weld joining two or more parts. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsExposed Bolting
Definition(s)
Exposed Bolting
Bolting exposed directly to a sour environment or that is buried, insulated, equipped with flange protectors, or is otherwise denied open atmosphere or open seawater exposure. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global StandardsExposed Bolting
Bolting that is exposed directly to the sour environment or that is buried, insulated, equipped with flange protectors, or otherwise denied direct atmospheric exposure. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsEquivalent Round (ER)
Definition(s)
Equivalent Round (ER)
Standard for comparing various shaped sections to round bars, in determining the response to hardening characteristics when heat-treating low-alloy and martensitic corrosion-resistant steel. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsEquivalent Round (ER)
Standard for comparing variously shaped sections to round bars, used in determining the response to hardening characteristics when heat treating low-alloy and martensitic corrosion-resistant steels. Source: API SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). Global StandardsEnd Connection Or Outlet Connection
Definition(s)
End Connection Or Outlet Connection
Integral male or female thread; clamp hub end connector and flange, studded or through bolted, or any other means used to join together equipment that contains or controls pressure. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsDate Of Repair/Remanufacture
Definition(s)
Date Of Repair/Remanufacture
Date of repairer/remanufacturer's final acceptance of finished equipment. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsDate Of Manufacture
Definition(s)
Date Of Manufacture
Date of the manufacturer's final acceptance of finished equipment. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. GlobalDate Of Manufacture
Date of manufacturer's final acceptance of finished equipment. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsDate Of Manufacture
The date of manufacture is final acceptance of finished equipment. Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global StandardsCross-Over Spool
Definition(s)
Cross-Over Spool
Flanged or other connected equipment with a restricted-area sealing means, at or near the face of its lower flange. NOTE Cross-over spools are also provided with suitable means to suspend and seal around an inner string of casing or tubing. A cross-over spool has a top connection with a pressure rating above that of the lower connection. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCross-Over Flange
Definition(s)
Cross-Over Flange
Double- or single-studded adapter flange with a restricted-area sealing means and with a top-connection pressure rating above that of the lower connection. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCross-Over Connector
Definition(s)
Cross-Over Connector
Adapter with a restricted-area sealing means and with a top-connection pressure rating above that of the lower connection. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCross
Definition(s)
Cross
Pressure-containing fitting with a minimum of four openings. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCorrosion-Resistant Ring Groove
Definition(s)
Corrosion-Resistant Ring Groove
Ring groove lined with a CRA or an austenitic stainless steel to resist metal-loss corrosion. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCorrosion-Resistant Ring Groove
Ring groove lined with metal resistant to metal-loss corrosion. Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsConformance
Definition(s)
Conformance
Satisfying all of the requirements of the referenced specification, specification section, or document. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global StandardsConformance
Satisfying all of the specified requirements of the referenced specification, specification section, or document.
Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global StandardsConformance
Compliance with specified requirements. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global StandardsConformance
Compliance with specified requirements in every detail. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsConformance (conform)
Compliance with specified requirements in every detail. Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global StandardsConformance
Evaluation of how well something such as an activity, action, asset, project or product adheres to defined requirements. Requirements may be defined within policies, regulations, laws, management systems, specifications, rules, codes, standards, processes or procedures. Source: IOGP Report No. 510, Operating Management System Framework for controlling risk and delivering high performance in the oil and gas industry, International Association of Oil & Gas Producers, June 2014. Global StandardsClosure Bolting
Definition(s)
Closure Bolting
Bolting used to assemble or join wellbore pressure-containing parts, including end and outlet connections.- NOTE: Examples of closure bolting include flange bolting, bonnet bolting, end connection bolting on BOPs, ram door bolting, and hub clamp bolting.
Closure Bolting
Bolting used to assemble or join wellbore pressure-containing parts including end and outlet connections.- NOTE: Examples: flange bolting, bonnet bolting, bolting on end connection on BOPs, ram door bolting, hub clamp bolting.
Closure Bolting
Threaded fastener used to assemble well-bore pressure-containing parts or join end or outlet connections.- EXAMPLES Studs, nuts, bolts and capscrews.
Clamp Hub
Definition(s)
Clamp Hub
Protruding rim with an external angled shoulder and a sealing mechanism used to join pressure-containing equipment. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsChoke Trim
Definition(s)
Choke Trim
Pressure-controlling choke component, including choke beans, used to control or regulate the flow of fluids. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsChoke Bean (Flow Bean)
Definition(s)
Choke Bean (Flow Bean)
Replaceable orifice part used in positive chokes to control flow rate. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsChemical Analysis
Definition(s)
Chemical Analysis
Determination of the chemical composition of material. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global StandardsCheck Valve
Definition(s)
Check Valve
Valve that permits fluid to flow freely in one direction and contains a mechanism to automatically prevent flow in the other direction. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCheck Valve
A valve that allows flow through it in one direction only. Source: API SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. Global StandardsCheck Valve
Device designed to prevent flow in one direction. Source: API SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). Global StandardsCheck Valve
A valve that allows flow in one direction only. Source: API SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). Global StandardsCertificate Of Conformance
Definition(s)
Certificate Of Conformance
Document in which the manufacturer certifies that the assembly or part is in conformance to the mentioned standard(s), specifications, and guidelines in accordance with the original product definition. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global StandardsCertificate Of Conformance
Document in which the manufacturer, remanufacturer, or technical authority certifies that the assembly or part is in conformance to the mentioned standard(s), specifications, and guidelines in accordance with the original or current product definition (CPD). Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global StandardsCertificate Of Conformance
Document certifying that the repaired/remanufactured equipment and all of its component parts meet the requirements of the original product definition. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCertificate Of Compliance
Definition(s)
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. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCasting, Noun
Definition(s)
Casting, (noun)
Object at or near finished shape obtained by solidification of a molten metal in a mold.Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards
Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards
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.