Body

Body

Definition(s)

Body

Portion of equipment between end connections, with or without internal parts, that contains wellbore pressure. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards  

Body

Any portion of equipment between end connections, with or without internal parts, that contains wellbore pressure.

Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards

Body

Any portion of wellhead and christmas tree equipment between end connections, with or without internal parts, which contains well-bore pressure. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards  

Body

Any portion of equipment between end connections, with or without internal parts, which contains wellbore pressure. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards  

Body

Any portion of API equipment between end connections, with or without internal parts, which contains well bore pressure. Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards  

Body

Any portion of equipment between end connections, with or without internal parts, which contains wellbore pressure. Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global Standards
Blind Flange

Blind Flange

Definition(s)

Blind Flange

Flange with no centre bore, used to close off completely a flanged end or outlet connection. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards
Warning

Warning

Definition(s)

Warning

Condition requiring no immediate attention or action. Warnings are presented for precautionary reasons to bring awareness of changed conditions which are not immediately hazardous, but may become so if no action is taken. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance  

Warning

Condition requiring immediate attention, but no immediate action by the bridge team. Warnings are presented for precautionary reasons to make the bridge team aware of changed conditions which are not immediately hazardous, but may become so if no action is taken. Source: IMO Resolution MSC.302(87), Performance standards for bridge alert management, 17 May 2010, International Maritime Organization. Regulatory Guidance
Back-Pressure Valve (BPV)

Back-Pressure Valve (BPV)

Definition(s)

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. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards  

Back-Pressure Valve

A flow control valve to provide backflow control when running or pulling a string. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards
Steering Gear Alarm

Steering Gear Alarm

Definition(s)

Steering Gear Alarm

An alarm which indicates a malfunction or other abnormal condition of the steering gear system, e.g., overload alarm, phase failure alarm, no-voltage alarm and hydraulic oil tank low-level alarm. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
As-Shipped Condition

As-Shipped Condition

Definition(s)

As-Shipped Condition

Condition of the product or equipment when it is ready for shipment. 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 Standards
Annular Pack-Off

Annular Pack-Off

Definition(s)

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. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards  
Adapter

Adapter

Definition(s)

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. Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards 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 Standards  

Adapter

Pressure-containing piece of equipment having end connections of different nominal size designation and/or pressure rating. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards
Accessible Wetted Surface

Accessible Wetted Surface

Definition(s)

Accessible Wetted Surface

Wetted surface for purposes of non-destructive examination that can be viewed by direct line of sight. NOTE This excludes test ports, control line ports, lockdown screw holes and other penetrations of these types. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards  

Accessible Wetted Service

Specified limits of acceptability applied to process, service, or product characteristics . Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards
Silence

Silence

Definition(s)

Silence

Manual stopping of an audible signal. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Required Alert or Indicator

Required Alert or Indicator

Definition(s)

Required Alert or Indicator

An alert or indicator required by IMO instruments referred to in paragraph 1.1. Any other alerts and indicators are referred to in this Code as non-required alerts or indicators. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Prioritization/Priority

Prioritization/Priority

Definition(s)

Prioritization/Priority

The ordering of alerts in terms of their severity, function, sequence, etc. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Power-operated Watertight Door Fault Alarms

Power-operated Watertight Door Fault Alarms

Definition(s)

Power-operated Watertight Door Fault Alarms

Alarms which indicate low level in hydraulic fluid reservoirs, low gas pressure or loss of stored energy in hydraulic accumulators, and loss of electrical power supply for power-operated sliding watertight doors. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Power-operated Sliding Watertight Door Closing Alarm

Power-operated Sliding Watertight Door Closing Alarm

Definition(s)

Power-operated Sliding Watertight Door Closing Alarm

An alarm required by SOLAS regulation II-1/15.7.1.6, warning of the closing of a power-operated sliding watertight door. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Personnel Alarm

Personnel Alarm

Definition(s)

Personnel Alarm

An alarm to confirm the safety of the engineer on duty when alone in the machinery spaces. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Machinery Alarm

Machinery Alarm

Definition(s)

Machinery Alarm

An alarm which indicates a malfunction or other abnormal condition of the machinery and electrical installations. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Grouping

Grouping

Definition(s)

Grouping

Grouping is a generic term meaning the arrangement of individual alerts on alert panels or individual indicators on indicating panels, e.g., steering gear alerts at the workstation for navigating and manoeuvring on the navigation bridge, or door indicators on a watertight door position indicating panel at the workstation for safety on the navigation bridge. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance  

Grouping

Arrangement of alerts in terms of their function or priority. Source: IMO Resolution MSC.302(87), Performance standards for bridge alert management, 17 May 2010, International Maritime Organization. Regulatory Guidance
General Emergency Alarm

General Emergency Alarm

Definition(s)

General Emergency Alarm

An alarm given in the case of an emergency to all persons on board summoning passengers and crew to assembly stations. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
WPQ

WPQ

Definition(s)

WPQ

Welder performance qualification. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards
Gas Detection Alarm

Gas Detection Alarm

Definition(s)

Gas Detection Alarm

An alarm which indicates that gas has been detected. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Fixed Local Application Fire-extinguishing System Activation Alarm

Fixed Local Application Fire-extinguishing System Activation Alarm

Definition(s)

Fixed Local Application Fire-extinguishing System Activation Alarm

An alarm to alert the crew that the system has been discharged, with indication of the section activated. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
RSC

RSC

Definition(s)

RSC

Rotary shouldered connection. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards  
Fire-extinguishing Pre-discharge Alarm

Fire-extinguishing Pre-discharge Alarm

Definition(s)

Fire-extinguishing Pre-discharge Alarm

An alarm warning of the imminent release of fire-extinguishing medium into a space. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Fire Detection Alarm

Fire Detection Alarm

Definition(s)

Fire Detection Alarm

An alarm to alert the crew in the onboard safety centre, the continuously manned central control station, the navigation bridge or main fire control station or elsewhere that a fire has been detected. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Fire Alarm

Fire Alarm

Definition(s)

Fire Alarm

An alarm to summon the crew in the case of fire. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
Engineers’ Alarm

Engineers’ Alarm

Definition(s)

Engineers’ Alarm

An alarm to be operated from the engine control room or at the manoeuvring platform, as appropriate, to alert personnel in the engineers’ accommodation that assistance is needed in the engine-room. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization, Regulatory Guidance
Emergency Alarm

Emergency Alarm

Definition(s)

Emergency Alarm

An alarm which indicates that immediate danger to human life or to the ship and its machinery exists and that immediate action should be taken. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization, Regulatory Guidance  

Emergency Alarm

Highest priority of an alert. Alarms which indicate immediate danger to human life or to the ship and its machinery exits and require immediate action. Source: IMO Resolution MSC.302(87), Performance standards for bridge alert management, 17 May 2010, International Maritime Organization. Regulatory Guidance
Control System Fault Alarm

Control System Fault Alarm

Definition(s)

Control System Fault Alarm

An alarm which indicates a failure of an automatic or remote control system, e.g., the navigation bridge propulsion control failure alarm. Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. Regulatory Guidance
IEU

IEU

Definition(s)

IEU

Internal-external upset. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards