Flexible Flowline

Flexible Flowline

Definition(s)

Flexible Flowline

Flexible pipe, wholly or in part, resting on the seafloor or buried below the seafloor, and used in a static application. NOTE The term flowline is used in this document as a generic term for flexible flowlines. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards  
Fishscaling

Fishscaling

Definition(s)

Fishscaling

Tendency of one tensile armour wire edge to lift off of the underlying layer because of deflection or incorrect twist deformation during armour winding. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards  
Dynamic Application

Dynamic Application

Definition(s)

Dynamic Application

Flexible pipe configuration that is subjected to loads that vary in time, or whose deflections or boundary conditions vary in time. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards    
Crossover

Crossover

Definition(s)

Crossover

Flexible flowline crossing another pipe already laid on the seabed. NOTE The underlying pipe may be a steel pipe or another flexible pipe. It may be required to support the overlying pipe to prevent overbending or crushing of the new or existing pipes. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards  

Crossover

Tubular element with two different threaded connections.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Annex IV

Annex IV

Definition(s)

Annex IV

Annex IV – the revised Annex IV of the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78) as amended by resolution MEPC.115(51). Source: Resolution MEPC.159(55), Revised Guidelines on Implementation of Effluent Standards and Performance Tests for Sewage Treatment Plants, 13 October 2006, International Maritime Organization Regulatory Guidance
Choke-And-Kill Line

Choke-And-Kill Line

Definition(s)

Choke-And-Kill Line

Flexible pipe jumper located between choke manifold and blow-out preventer. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Swept Volume

Swept Volume

Definition(s)

Swept Volume

Swept volume means ship breadth x draft x distance travelled. Source: Resolution MEPC.157(55), Recommendation on standards for the rate of discharge of untreated sewage from ships, 13 October 2006, International Maritime Organization. Regulatory Guidance
The Southern South African Waters

The Southern South African Waters

Definition(s)

The Southern South African Waters

The Southern South African waters means the sea area enclosed by the following co-ordinates: 31° 14΄ S; 017° 50΄ E 31° 30΄ S; 017° 12΄ E 32° 00΄ S; 017° 06΄ E 32° 32΄ S; 016° 52΄ E 34° 06΄ S; 017° 24΄ E 36° 58΄ S; 020° 54΄ E 36° 00΄ S; 022° 30΄ E 35° 14΄ S; 022° 54΄ E 34° 30΄ S; 026° 00΄ E 33° 48΄ S; 027° 25΄ E 33° 27΄ S; 027° 12΄ E. Source: Resolution MEPC.154(55), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships (Designation of the Southern South African waters as a Special Area), 13 October 2006, International Maritime Organization. Legislation
Carcass

Carcass

Definition(s)

Carcass

Interlocked metallic construction that can be used as the innermost layer to prevent, totally or partially, collapse of the internal pressure sheath or pipe due to pipe decompression, external pressure, tensile armour pressure, and mechanical crushing loads. NOTE The carcass may be used externally to protect the external surface of the pipe. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Burst Disk

Burst Disk

Definition(s)

Burst Disk

Weak points in the outer sheath designed to burst when the gas pressure in the annulus exceeds a specified value. NOTE The weak point is induced by reducing the thickness of the sheath over a localized area. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Bonded Pipe

Bonded Pipe

Definition(s)

Bonded Pipe

Flexible pipe in which the steel reinforcement is integrated and bonded to a vulcanized elastomeric material where textile material is included in the structure to obtain additional structural reinforcement or to separate elastomeric layers. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Bending Stiffness

Bending Stiffness

Definition(s)

Bending Stiffness

Ability of a flexible pipe to resist deflection when subjected to bending loads at constant tension, pressure and temperature. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Bend Radius

Bend Radius

Definition(s)

Bend Radius

Radius of curvature of the flexible pipe measured from the pipe centerline. NOTE Storage and operating minimum bend radius (MBR) are defined in 6.3.1. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Bend Limiter

Bend Limiter

Definition(s)

Bend Limiter

Any device used to restrict bending of the flexible pipe. NOTE Bend limiters include bend restrictors, bend stiffeners, and bellmouths. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Oil Fuel Capacity

Oil Fuel Capacity

Definition(s)

Oil Fuel Capacity

“Oil fuel capacity” means the volume of a tank in m3, at 98% filling. <Annex 1, regulation 12A>. Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. Legislation
Anti-Wear Layer

Anti-Wear Layer

Definition(s)

Anti-Wear Layer

Non-metallic layer, either extruded thermoplastic sheath or tape wrapping, used to minimize wear between structural layers. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards    
Ancillary Components

Ancillary Components

Definition(s)

Ancillary Components

Components used to control the flexible pipe behaviour, such as bend stiffeners and buoyancy modules. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards      
Small Oil Fuel Tank

Small Oil Fuel Tank

Definition(s)

Small Oil Fuel Tank

“Small oil fuel tank” is an oil fuel tank with a maximum individual capacity not greater than 30 m3. <Annex 1, regulation 12A>. Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. Legislation
Oil Fuel Tank

Oil Fuel Tank

Definition(s)

Oil Fuel Tank

“Oil fuel tank” means a tank in which oil fuel is carried, but excludes those tanks which would not contain oil fuel in normal operation, such as overflow tanks. <Annex 1, regulation 12A>. Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. Legislation
Yr

Yr

Definition(s)

Yr

Year. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards    
Wk

Wk

Definition(s)

Wk

Week. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards    
VDC

VDC

Definition(s)

VDC

Volts direct current. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards    
VAC

VAC

Definition(s)

VAC

Volts alternating current. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards    
TX

TX

Definition(s)

TX

Radio transmitter. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
THD

THD

Definition(s)

THD

Total harmonic distortion. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
TBN

TBN

Definition(s)

TBN

Total base number. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
TBD

TBD

Definition(s)

TBD

To be decided. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
Upper Deck

Upper Deck

Definition(s)

Upper Deck

“upper deck” means the highest deck to which the watertight transverse bulkheads except aft peak bulkheads extend. <Annex 1, regulation 12A>. Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. Legislation
Depth (DS)

Depth (DS)

Definition(s)

Depth (DS)

“Depth (DS)” is the moulded depth, in metres, measured at mid-length to the upper deck at side. For the purpose of the application, “upper deck” means the highest deck to which the watertight transverse bulkheads except aft peak bulkheads extend. <Annex 1, regulation 12A>. Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. Legislation
TAN

TAN

Definition(s)

TAN

Total acid number. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards