Subsea Termination Interface

Subsea Termination Interface

Definition(s)


Subsea Termination Interface

Mechanism that forms the transition between the umbilical and the subsea termination. NOTE The interface is comprised typically of an umbilical armour termination and/or a mechanical anchoring device for the tubes, bend stiffener/limiter, and tube or hose-end fittings. If the umbilical contains electric cables/fibre optics, then penetrator(s) and/or connectors may also be incorporated. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards
Static Application

Static Application

Definition(s)


Static Application

Application for which the load effect(s) due to dynamic loads (e.g. wave action, induced vibrations, etc.) when installed can be neglected. NOTE Free spans, in an otherwise static umbilical, should be considered as a dynamic application. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  

Static Application

Flexible pipes not exposed to significant cyclically varying loads or deflections during normal operations. Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
S-N Data

S-N Data

Definition(s)


S-N Data

Data obtained by plotting cyclic stress level versus number of cycles to failure. Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. 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
Sequential Method

Sequential Method

Definition(s)


Sequential Method

Sequential method – a process by which a ballast tank intended for the carriage of ballast water is first emptied and then refilled with replacement ballast water to achieve at least a 95 per cent volumetric exchange. Source: Resolution MEPC.124(53), Guidelines for ballast water exchange (G6), 22 July 2005, International Maritime Organization. Regulatory Guidance Source: Resolution MEPC.149(55), Guidelines for ballast water exchange design and construction standards (G11), 13 October 2006, International Maritime Organization. Regulatory Guidance
Surface BOP (SBOP)

Surface BOP (SBOP)

Definition(s)


Surface BOP

Blowout preventer designed for use on a surface facility such as a fixed platform, jackup or floating drilling on intervention unit. 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  
Subsea Wireline/Coiled Tubing BOP

Subsea Wireline/Coiled Tubing BOP

Definition(s)


Subsea Wireline/Coiled Tubing BOP

Subsea BOP that attaches to the top of a subsea tree to facilitate wireline or coiled tubing intervention. 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  
Subsea Wellhead Housing

Subsea Wellhead Housing

Definition(s)


Subsea Wellhead Housing

Pressure-containing housing that provides a means for suspending and sealing the well casing strings. 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  
Subsea Completion Equipment

Subsea Completion Equipment

Definition(s)


Subsea Completion Equipment

Specialized tree and wellhead equipment used to complete a well below the surface of a body of water. 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  
Subsea Casing Hanger

Subsea Casing Hanger

Definition(s)


Subsea Casing Hanger

Device that supports a casing string in the wellhead at the mudline. 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  
Subsea BOP

Subsea BOP

Definition(s)


Subsea BOP

Blowout preventer designed for use on subsea wellheads, tubing heads or trees. 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  
Solidifying Substance

Solidifying Substance

Definition(s)


Solidifying Substance

Solidifying Substance means a noxious liquid substance which: 1 in the case of a substance with a melting point of less than 15°C which is at a temperature of less than 5°C above its melting point at the time of unloading; or 2 in the case of a substances with a melting point of equal to or greater than 15°C which is at a temperature of less than 10°C above its melting point at the time of unloading.  <Annex II, Chapter 1, Regulation 1>. Source: Resolution MEPC.118(52), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Revised Annex II of MARPOL 73/78), 15 October 2004, International Maritime Organization. Legislation
Similar Stage of Construction

Similar Stage of Construction

Definition(s)


Similar Stage of Construction

Similar stage of construction means the stage at which: 1 construction identifiable with a specific ship begins; and 2 assembly of that ship has commenced comprising at least 50 tons or one per cent of the estimated mass of all structural material, whichever is less.  <Annex II, Chapter 1, Regulation 1> Source: Resolution MEPC.118(52), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Revised Annex II of MARPOL 73/78), 15 October 2004, International Maritime Organization. Legislation Source: Resolution MEPC.176(58), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships (Revised MARPOL Annex VI), 10 October 2008, International Maritime Organization. Legislation
Ship Constructed

Ship Constructed

Definition(s)


Ship Constructed

Ship constructed means a ship the keel of which is laid or which is at a similar stage of construction. A ship converted to a chemical tanker, irrespective of the date of construction, shall be treated as a chemical tanker constructed on the date on which such conversion commenced. This conversion provision shall not apply to the modification of a ship, which complies with all of the following conditions: 1 the ship is constructed before 1 July 1986; and 2 the ship is certified under the Bulk Chemical Code to carry only those products identified by the Code as substances with pollution hazards only.  <Annex II, Chapter 1, Regulation 1> Source: Resolution MEPC.118(52), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Revised Annex II of MARPOL 73/78), 15 October 2004, International Maritime Organization. Legislation  

Ships Constructed

Ships constructed means ships the keels of which are laid or which are at a similar stage of construction. Source: Resolution MEPC.176(58), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships (Revised MARPOL Annex VI), 10 October 2008, International Maritime Organization. Legislation
Segregated Ballast

Segregated Ballast

Definition(s)


Segregated Ballast

Segregated ballast means ballast water introduced into a tank permanently allocated to the carriage of ballast or cargoes other than oil or Noxious Liquid Substances as variously defined in the Annexes of the present Convention, and which is completely separated from the cargo and oil fuel system.  <Annex II, Chapter 1, Regulation 1>. Source: Resolution MEPC.118(52), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Revised Annex II of MARPOL 73/78), 15 October 2004, International Maritime Organization. Legislation
Solid Waste Facility

Solid Waste Facility

Definition(s)


Solid Waste Facility

“Solid waste facility” means a facility permitted or authorized as a solid waste facility by the New Mexico environment department pursuant to the Solid Waste Act, NMSA 1978, Sections 74-9-1 et seq. and New Mexico environmental improvement board rules to accept industrial solid waste or other special waste. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations
Substandard Ship

Substandard Ship

Definition(s)


Substandard Ship

A ship whose hull, machinery, equipment or operational safety is substantially below the standards required by the relevant convention or whose crew is not in conformance with the safe manning document. Source: IMO resolution A.1052(27), Procedures for Port State Control, 2011, 201 December 2011, International Maritime Organization. Regulatory Guidance
Stoppage Of An Operation

Stoppage Of An Operation

Definition(s)


Stoppage Of An Operation

Formal prohibition against a ship to continue an operation due to an identified deficiency(ies) which, singly or together, render the continuation of such operation hazardous. Source: IMO resolution A.1052(27), Procedures for Port State Control, 2011, 201 December 2011, International Maritime Organization. Regulatory Guidance
Sub-Area

Sub-Area

Definition(s)


Sub-Area

Sub-Area means a sub-division of a METAREA in which a number of countries have established a coordinated system for the promulgation of marine meteorological information. The delimitation of such areas is not related to and should not prejudice the delimitation of any boundaries between States. Source: IMO resolution A.1051(27), IMO/WMO Worldwide Met-Ocean Information and Warning Service ‒ Guidance Document, 20 December 2011, International Maritime Organization. Regulatory Guidance 
SafetyNET

SafetyNET

Definition(s)


SafetyNET

SafetyNET means the international service for the broadcasting and automatic reception of maritime safety information via the Inmarsat EGC system. SafetyNET receiving capability is part of the mandatory equipment which is required to be carried by certain ships in accordance with the provisions of the 1974 SOLAS Convention. Source: IMO resolution A.1051(27), IMO/WMO Worldwide Met-Ocean Information and Warning Service ‒ Guidance Document, 20 December 2011, International Maritime Organization. Regulatory Guidance 
Swivel

Swivel

Definition(s)


Swivel

A load-carrying member with thrust bearings that permit rotation under load in a plane perpendicular to the direction of the load. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Swivel

Device at the top of the drill stem which permits simultaneous circulation and rotation. Source: API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). Global Standards  

Swivel

Device at top of the drill stem that permits simultaneous circulation and rotation. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards  

Swivel

“Swivel” means a device at the top of the drill stem that permits the circulation of fluids and the rotation of the drill string. [Mich. Admin. Code R 408 (2013)]. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations
Subsea Wellhead

Subsea Wellhead

Definition(s)


Subsea Wellhead

Wellhead that is installed at or near the seabed. Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards

Subsea Wellhead

Assembly used during drilling, completion and production operations that has provisions to lock and seal to a subsea BOP stack, to a subsea tree, to a high pressure drilling riser or to a top-tensioned production riser. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards

Subsea Wellhead

Wells drilled and completed with a subsea wellhead located near the seafloor. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  

Subsea Wellhead

Wellhead assembly used during drilling and completion operations that has provisions to lock and seal to a subsea BOP stack and to the subsea tree. Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards  

Subsea Wellhead

A wellhead that is used with a floating drilling rig that uses a subsea BOP stack for well control. The subsea wellhead is usually connected to the surface casing string and all subsequent casing strings are installed, landed, and sealed inside the subsea wellhead’s high pressure housing, immediately below the BOP. The well can be completed in one of two methods: 1. Using a subsea tree (subsea well). 2. Using one or two production risers leading back to a surface casing head, tubing head/tubing hanger, and christmas tree (hybrid well). Source: API RP 90, Annular Casing Pressure Management for Offshore Wells, Upstream Segment. First Edition, August 2006. Global Standards
SSC

SSC

Definition(s)


SSC

Sulfide Stress Cracking. Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global Standards Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards Source: API RP 17B, Recommended Practice for Flexible Pipe, Fourth Edition, July 2008. Global Standards Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards Source: ISO 21457:2010, Petroleum and natural gas industries — Materials selection and corrosion control for oil and gas production systems, First Edition,September 2010. Global Standards  

SSC

Cracking of metal involving corrosion and tensile stress (residual and/or applied) in the presence of water and H2S NOTE SSC is a form of hydrogen stress cracking (HSC) and involves embrittlement of the metal by atomic hydrogen that is produced by acid corrosion on the metal surface. Hydrogen uptake is promoted in the presence of sulfides. The atomic hydrogen can diffuse into the metal, reduce ductility and increase susceptibility to cracking. High strength metallic materials and hard weld zones are prone to SSC. [ISO 15156-1:2009, definition 3.23] Source: ISO 21457:2010, Petroleum and natural gas industries — Materials selection and corrosion control for oil and gas production systems, First Edition,September 2010. Global Standards
Shall

Shall

Definition(s)


Shall

For the purposes of this publication, the term shall indicates that the RP has universal applicability to that specific activity. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Shall

As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification. Source: API RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. Global Standards Source: API RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. Global Standards  

Shall

Within this document, “shall” is used to state that a provision is mandatory. Source: API RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. Global Standards

Shall

Indicates the “recommended practice(s)” has universal applicability to that specific activity. Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards  

Shall

Denotes that the recommended practice has universal application to that specific activity. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards  

Shall

For the purpose of this document, shall indicates that the recommended practice(s) has universal application to that specific activity. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards Source: API RP 74, Recommended Practice for Occupational Safety for Onshore Oil and Gas Production Operation, First Edition, October 2001 (March 2007). Global Standards  

Shall

Indicates that the recommended practice(s) has universal applicability to that specific activity. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Shall

As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification. Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global Standards  

Shall

The term “shall” denotes a minimum requirement in order to conform to the recommended practice. Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards  

Shall

SHALL is used to indicate that a provision is MANDATORY. Source: API SPEC 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, Upstream Segment, First Edition, February 2010 (Errata August 2011). Global Standards Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards  

Shall

As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification. Source: API SPEC 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, Upstream Segment, First Edition, February 2010 (Errata August 2011). Global Standards Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  

Shall

Shall: As used in a standard, "shall" denotes a minimum requirement in order to conform to the specification. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards Source: API SPEC 10A, Specification for Cements and Materials for Well Cementing, Twenty-fourth Edition, December 2010. Global Standards Source: API SPEC 11D1, Packers and Bridge Plugs, Upstream Segment, Second Edition, July 2009. Global Standards Source: API SPEC 13A, Specification for Drilling Fluids Materials, Eighteenth Edition, February 2010. Global Standards  

Shall

Indicates a mandatory requirement to be followed for fulfilment or compliance with the present standard. Deviations are not permitted unless formally and rigorously justified, and accepted by all relevant contracting parties. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  

Shall

"Shall" means mandatory. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. Regulations  

Shall

The term shall is also used in the guidelines regarding the regulations. In this context, shall means a direct rendering of a statutory or regulatory requirement. Source: Guidelines Regarding the Framework Regulations, Norway, updated December 2012. Regulatory Guidance  

Shall

Verbal form used to indicate requirements strictly to be followed in order to conform to this NORSOK standard and from which no deviation is permitted, unless accepted by all involved parties. Source: NORSOK D-002, Well intervention equipment, Rev. 2, June 2013. Global Standards  

Shall

Shall is an absolute requirement which shall be followed strictly in order to conform with the standard. Source: NORSOK D-007, Well Testing Systems, Rev. 1, January 1996. Global Standards  

Shall

Indicates a mandatory requirement to comply with the HSE Act or regulations made under the HSE Act. Source: Approved Code of Practice for Managing Hazards to Prevent Major Industrial Accidents, Health and Safety in Employment Act 1992, Department of Labour, New Zealand, July 1994. Regulatory Guidance  

Shall

verbal form used to indicate requirements strictly to be followed in order to conform to this guideline and from which no deviation is permitted, unless accepted by all involved parties Source: Approved Code of Practice for Managing Hazards to Prevent Major Industrial Accidents, Health and Safety in Employment Act 1992, Department of Labour, New Zealand, July 1994. Regulatory Guidance  

Shall

Indicates requirements strictly to be followed in order to conform to this OSS and from which no deviation is permitted. Source: Verification of Lifting Appliances for the Oil and Gas Industry, DNV-OSS-308, October 2010, Det Norske Veritas AS, Global Standards
Setting Tool

Setting Tool

Definition(s)


Setting Tool

An electro-explosive downhole tool that is mechanically actuated by the initiation and gas generation of a propellant charge. Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global Standards
Serious Situation

Serious Situation

Definition(s)


Serious situation

Serious situation, in relation to an identified greenhouse gas storage formation, has the meaning given by section 379. Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. Legislation
Secondary Stress

Secondary Stress

Definition(s)


Secondary stress

Any normal or shear stress that develops as a result of material constraint. NOTE This type of stress is self-limiting, which means that local yielding can relieve the conditions that cause the stress, and single application of load will not cause failure. NOTE Definition taken from API 2RD. Source: API RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. Global Standards  

Secondary stress

Stress developed by constraint due to a geometrical discontinuity, by the use of materials of different elastic moduli under external load, by constraint due to differential thermal expansion, or by assembly load (preload) that does not impair the sealing performance of a connector. NOTE 1 Only stresses that are distributed linearly across the thickness are considered secondary stresses. For nonlinearly distributed stresses, the secondary stresses are those of the equivalent linear distribution. NOTE 2 With respect to the mechanical behaviour of the structure, the basic characteristic of secondary stresses is that they lead to plastic deformation when equalizing different local distortions in the case of excess of the yield strength. Characteristic for a secondary stress is that it is self-limiting, i.e. local flow deformation leads to a limitation of the stress. NOTE 3 Secondary stresses can be of the membrane or bending type. NOTE 4 Bending stresses caused by gross structural discontinuities and acting across the wall thickness of the pipe are classified as secondary stresses. Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards  

Secondary stress

A secondary stress is any stress in the structure which is not a primary stress or peak stress. Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards  

Secondary stress

Normal stress or a shear stress developed by the constraint of adjacent parts or by self constraint of a structure (ASME BPVC, Section VIII, Division 2, Paragraph 5.12). NOTE The basic characteristic of a secondary stress is that it is self-limiting. Local yielding and minor distortions can satisfy the conditions that cause the stress to occur and failure from one application of the stress is not to be expected. Source: API TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High-temperature Equipment, First Edition, March 2013. Global Standards