Design Tensile Load

Design Tensile Load

Definition(s)

Design Tensile Load

Maximum tensile load multiplied by an appropriate factor that is equal to, or less than, one. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards    
Archipelagic State

Archipelagic State

Definition(s)

Archipelagic State

'Archipelagic State' means a State constituted wholly by one or more archipelagos and may include other islands Source: United Nations Convention on the Law of the Sea (UNCLOS), 1982, Legislation 
Design Working Pressure (DWP)

Design Working Pressure (DWP)

Definition(s)

Design Working Pressure (DWP)

Maximum working pressure at which a hose or tube is rated for continuous operation. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards    
Crushing Load

Crushing Load

Definition(s)

Crushing Load

Load that acts in the radial direction that might not be evenly distributed along the circumference and that is limited in length along the umbilical. NOTE A crushing load is typically induced during installation. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Crab Lay

Crab Lay

Definition(s)

Crab Lay

Installation deployment activity whereby the installation vessel moves sideways along, or at the end of, the installation route. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Core

Core

Definition(s)

Characterization Data

Generic term used to describe an individual electrically insulated conductor. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Characterization Data

Characterization Data

Definition(s)

Characterization Data

Data relating to a component or an umbilical giving an indication of performance but not giving specific acceptance/rejection criteria chinese finger type of gripper used to hold the umbilical via its outer diameter, comprised of a number of spirally interwoven wires or synthetic rope attached to a built-in anchorage arrangement. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Caterpillar

Caterpillar

Definition(s)

Caterpillar

Device that holds the umbilical between belts or pads and which transfers axial linear motive power to the umbilical. NOTE A caterpillar is also known as an in-line cable engine, or haul off, or tensioner. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Capacity Curve

Capacity Curve

Definition(s)

Capacity Curve

Curve that defines the relationship between the allowable bend radius and allowable tension for an internal pressure condition. See Figure 1. NOTE Curves can, therefore, differ for storage, testing, installation and operation scenarios. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Bundle

Bundle

Definition(s)

Bundle

Laid-up functional components and associated fillers in the umbilical prior to further processing. NOTE Typical functional components in a bundle include hoses, tubes, electric cables, optical fibre cables. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Bend Restrictor

Bend Restrictor

Definition(s)

Bend Restrictor

A device placed on the rope adjacent to a termination to prevent abrupt bending at the termination. Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global Standards Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global Standards

Bend Restrictor

Device for limiting the bend radius of the umbilical by mechanical means. NOTE A bend restrictor typically is comprised of a series of interlocking metallic or moulded rings, applied over the umbilical. It is sometimes referred to as a bend strain reliever (BSR). Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  

Bend Restrictor

Mechanical device that functions as a mechanical stop and limits the local radius of curvature of the flexible pipe to a minimum value. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards

Ancillary Equipment

Ancillary Equipment

Definition(s)

Ancillary Equipment

Accessory to the umbilical system that does not form part of the main functional purpose. EXAMPLES Weak link, buoyancy attachments, I-tube or J-tube seals, VIV strakes, centralizers, anchors external clamps. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Allowable Tensile Load

Allowable Tensile Load

Definition(s)

Allowable Tensile Load

Maximum tensile load that an umbilical, at a given bend radius, can be loaded to without infringing design criteria or suffering loss of performance. See Figure 1. NOTE Allowable tensile load decreases with decreasing bend radius and will vary depending on internal pressure and condition, i.e. safety level. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Allowable Bend Radius

Allowable Bend Radius

Definition(s)

Allowable Bend Radius

Minimum radius to which an umbilical, at a given tension, may be bent to without infringing design criteria or suffering loss of performance. See Figure 1. NOTE 1 The bend radius is measured to the centreline of the umbilical. NOTE 2 Allowable bend radius increases with increasing tensile load and varies depending on internal pressure and condition, i.e. safety level. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  
Tree Piping

Tree Piping

Definition(s)

Tree Piping

The term tree piping is used to encompass the requirements for all pipe, fittings or pressure conduits, excluding valves and chokes, from the vertical bores of the tree to the flowline connection(s) leaving the subsea tree. The piping may be used for production, pigging, monitoring, water, gas or chemical injection, service or test of the subsea tree. 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 Standards  
Choke-Actuator Cycle

Choke-Actuator Cycle

Definition(s)

Choke-Actuator Cycle

A choke-actuator cycle is defined as total choke stroke from full-open to full-close or full-close to full-open. 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 Standards  
SIT

SIT

Definition(s)

SIT

System integration test. 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 Standards    
Sy

Sy

Definition(s)

Sy

Yield strength. 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 Standards
Sm

Sm

Definition(s)

Sm

Membrane stress. 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 Standards
Sb

Sb

Definition(s)

Sb

Bending stress. 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 Standards
PR2

PR2

Definition(s)

PR2

Performance requirement level two. 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 Standards
PMR

PMR

Definition(s)

PMR

Per manufacturer’s rating. 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 Standards
LWRP

LWRP

Definition(s)

LWRP

Lower workover riser package (LRP + EDP) (see ISO 13628-7). 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 Standards    
GRA

GRA

Definition(s)

GRA

Guidelineless re-entry assembly. 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 Standards  

GRA

Guidelineless re-entry assist. Source: Deepwater Well Control Guidelines. IADC Guidelines
CRM

CRM

Definition(s)

CRM

Corrosion-resistant material. 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 Standards
CIT

CIT

Definition(s)

CIT

Chemical injection – tree. 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 Standards
CGB

CGB

Definition(s)

CGB

Completion guidebase. 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 Standards  
AWV

AWV

Definition(s)

AWV

Annulus wing valve. 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 Standards
Activities in The Area

Activities in The Area

Definition(s)

Activities in The Area

'Activities in the Area' means all activities of exploration for, and exploitation of, the resources of the Area Source: United Nations Convention on the Law of the Sea (UNCLOS), 1982, Legislation 
Authority

Authority

Definition(s)

Authority

A person with appropriate competence who is formally granted the power to make judgements and take decisions on technical or resource issues within a defined scope. 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 Standards

Authority

'Authority' means the International Sea-Bed Authority Source: United Nations Convention on the Law of the Sea (UNCLOS), 1982, Legislation