Safety-Critical Elements

Safety-Critical Elements

Definition(s)

Safety Critical Element

Part of a facility, including computer programs, whose purpose is to prevent or limit the consequences of a major accident, or whose failure could cause or contribute substantially to a major accident
  • Note: 1 to entry: Safety critical elements include measures for prevention, detection, control and mitigation (including personnel protection) of hazards.
[SOURCE: EU Directive 2013/30/EU, modified] Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global St

Safety Critical Element

Any component part of structure, equipment, plant or system whose failure could cause a major accidentt. Source: API RP 2FB, Recommended Practice for the Design of Offshore Facilities Against Fire and Blast Loading, First Edition, April 2006. Global Standards

Safety-Critical Elements

“Safety-critical elements” means such parts of an installation and such of its plant (including computer programmes), or any part thereof—
  1. the failure of which could cause or contribute substantially to; or
  2. a purpose of which is to prevent, or limit the effect of, a major accident.
Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations  

Safety Critical Element

Safety Critical Element (SCE) means such part of an installation and such of its plant (including computer programmes) or any part there of, the failure of which would cause or contribute substantially to, or a purpose of which is to prevent, or limit the effect of, a major accident. Source: NOGEPA Industrial Guideline No. 43, Surface BOP Review, Best Practices Checklist, Netherlands, Version 0, December 2011. Global Standards  

Safety Critical Element

Safety-critical element— (a) means any part of an installation or its plant (including a computer program)— (i) that has the purpose of preventing, or limiting the effect of, a major accident; or (ii) the failure of which could cause or contribute substantially to a major accident; and (b) without limiting the generality of paragraph (a), includes plant installed at the installation for the purpose of— (i) detecting smoke, fire, accumulations of flammable (and other hazardous) gases, leakages of flammable liquids, and other events that may require an emergency response; or (ii) giving warning of an emergency by audible and, where necessary, visual alarm systems; or (iii) limiting the extent of an emergency, including— (A) measures to combat fire and explosions: (B) emergency shut-down systems: (C) facilities for the monitoring and control of the emergency and for organizing evacuation; or (iv) protecting petroleum workers from explosion, fire, heat, smoke, hazardous gas, or fumes during any period while petroleum workers may need to remain on an installation during an emergency; or (v) safely evacuating all petroleum workers to a place of safety; or (vi) providing safe means of escape in the event that arrangements for evacuation fail. Source: Health and Safety in Employment (Petroleum Exploration and Extraction) Regulations 2013, SR 2013/208, New Zealand, as of May 2013. Regulations
Supervise

Supervise

Definition(s)

Supervise

“Supervise” means the exercise of direct personal control and “supervising” shall be construed accordingly. Source: The Diving at Work Regulations 1997, UK S.I. 1997/2776, 1997. Regulations
Standard Orientation

Standard Orientation

Definition(s)

Standard Orientation <water mist nozzles>

in the case of nozzles with symmetrical heat-responsive elements supported by frame arms, standard orientation is with the air flow perpendicular to both the axis of the nozzle's inlet and the plane of the frame arms. In the case of non-symmetrical heat-responsive elements, standard orientation is with the air flow perpendicular to both the inlet axis and the plane of the frame arms which produces the shortest response time. Source: Resolution A.800(19), Revised Guidelines for Approval of Sprinkler Systems Equivalent to that Referred to in SOLAS Regulation 11-2/12, 23 November 1995, International Maritime Organization. Regulatory Guidance
Suitably Qualified

Suitably Qualified

Definition(s)

Suitably Qualified

‘Suitably qualified’ means having knowledge and experience of conditions offshore. Source: Health Care and First Aid on Offshore Installations and Pipeline Works, Offshore Installations and Pipeline Works (First-Aid) Regulations 1989, Approved Code of Practice and Guidance (UK HSE L123), Second Edition, 2000. Regulatory Guidance  
Suitable Person

Suitable Person

Definition(s)

Suitable Person

‘Suitable persons’ may be offshore medics (in the case of regulation 5(1) (a) and (b)) or offshore first-aiders (in the case of regulation 5(1)(a) only). Source: Health Care and First Aid on Offshore Installations and Pipeline Works, Offshore Installations and Pipeline Works (First-Aid) Regulations 1989, Approved Code of Practice and Guidance (UK HSE L123), Second Edition, 2000. Regulatory Guidance  
Sick Bay

Sick Bay

Definition(s)

Sick Bay

Though defined in regulation 2 as ‘a room’, sick bays should, if possible, have separate areas for patients to rest and recuperate. Source: Health Care and First Aid on Offshore Installations and Pipeline Works, Offshore Installations and Pipeline Works (First-Aid) Regulations 1989, Approved Code of Practice and Guidance (UK HSE L123), Second Edition, 2000. Regulatory Guidance  

Sick Bay

“Sick bay” means a room for the medical treatment and care of sick and injured persons. Source: The Offshore Installations and Pipeline Works (First-Aid) Regulations 1989, UK S.I. 1989/1671, 1989. Regulations  
Surface-Orientated Diving

Surface-Orientated Diving

Definition(s)

Surface-Orientated Diving

A diving technique in which the diver enters the water from the surface and then returns to the surface after completion of the dive, other than by means of a closed diving bell. Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance  
Saturation Diving

Saturation Diving

Definition(s)

Saturation Diving

Saturation diving is the diving technique used during diving operations where the diver has reached the full saturation state for the pressure and breathing mixture being used. When this state has been reached the time required for decompression is not further increased in relation to the duration of the dive. Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance  
Standing or Stationed

Standing or Stationed

Definition(s)

Standing or Stationed

The term ‘standing or stationed’ indicates a degree of permanence. A Guide to the Offshore Installations and Pipelines Works (Management and Administration) Regulations 1995, Guidance on Regulations (UK HSE L70), Second Edition, 2002. Regulatory Guidance
SRSCR

SRSCR

Definition(s)

SRSCR

Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989. Source: Prevention of Fire and Explosion, and Emergency Response on Offshore Installations, Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Approved Code of Practice and guidance (UK HSE L65), Second Edition, 1997. Regulatory Guidance  

SRSCR

Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989 (Note: SI 1989/971.). Source: A Guide to the Offshore Installations and Pipelines Works (Management and Administration) Regulations 1995, Guidance on Regulations (UK HSE L70), Second Edition, 2002. Regulatory Guidance  
SSR

SSR

Definition(s)

SSR

Health and Safety (Safety Signs and Signals) Regulations 1996. Source: Prevention of Fire and Explosion, and Emergency Response on Offshore Installations, Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Approved Code of Practice and guidance (UK HSE L65), Second Edition, 1997. Regulatory Guidance
SCR

SCR

Definition(s)

SCR

Steel Catenary Riser. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards

SCR

Offshore Installations (Safety Case) Regulations 1992. Source: Prevention of Fire and Explosion, and Emergency Response on Offshore Installations, Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Approved Code of Practice and guidance (UK HSE L65), Second Edition, 1997. Regulatory Guidance  

SCR

Offshore Installations (Safety Cases) Regulations 1992 (Note: SI 1992/2885.). Source: A Guide to the Offshore Installations and Pipelines Works (Management and Administration) Regulations 1995, Guidance on Regulations (UK HSE L70), Second Edition, 2002. Regulatory Guidance
Synthetic Foam Concentrate (S)

Synthetic Foam Concentrate (S)

Definition(s)

Synthetic Foam Concentrate (S)

Synthetic foam concentrate (S) is a foam concentrate based on a mixture of hydrocarbon surface active agents and which may contain fluorocarbons with additional stabilizers. Source: IMO MSC.1/Circ.1312, Revised Guidelines for the performance and testing criteria, and surveys of foam concentrates for fixed fire-extinguishing systems, 10 June 2009, International Maritime Organization. Regulatory Guidance 
Spreading Coefficient

Spreading Coefficient

Definition(s)

Spreading Coefficient

Spreading coefficient is a measurement of the ability of one liquid to spontaneously spread across another. Source: IMO MSC.1/Circ.1312, Revised Guidelines for the performance and testing criteria, and surveys of foam concentrates for fixed fire-extinguishing systems, 10 June 2009, International Maritime Organization. Regulatory Guidance
Sediments

Sediments

Definition(s)

Sediments

Sediment is insoluble particles in the foam concentrate. Source: IMO MSC.1/Circ.1312, Revised Guidelines for the performance and testing criteria, and surveys of foam concentrates for fixed fire-extinguishing systems, 10 June 2009, International Maritime Organization. Regulatory Guidance  

Sediments

“Sediments” means matter settled out of Ballast Water within a ship. Source: International Convention for the Control and Management of Ships’ Ballast Water and Sediments, 2004. Legislation
State of the Ship’s Registry

State of the Ship’s Registry

Definition(s)

State of the Ship's Registry

"State of the ship's registry" means, in relation to a registered ship, the State of registration of the ship and, in relation to an unregistered ship, the State whose flag the ship is entitled to fly. Source: International Convention on Civil Liability for Bunker Oil Pollution Damage, 2001. Legislation
Shipowner

Shipowner

Definition(s)

Shipowner

Shipowner means the owner of a seagoing ship, or any other organization or person who or which has assumed responsibility for the operation of such a ship. Source: IMO Resolution A.898(21), Guidelines on shipowners’ responsibilities in respect of maritime claims, 4 February 2000, International Maritime Organization. Regulatory Guidance  

Shipowner

Shipowner means the owner of the ship or any other organization or person, such as the manager, agent or bareboat charterer, who has assumed the responsibility for operation of the ship from the shipowner and who on assuming such responsibilities has agreed to take over all the attendant duties and responsibilities Note: Article 1(c) of the Recruitment and Placement of Seafarers Convention 1996 (No.179) and Regulation IX/1.2 of SOLAS 1974 as amended. Source: IMO Resolution A.930(22), Guidelines on Provision of Financial Security in Case of Abandonment of Seafarers, 17 December 2001, International Maritime Organization. Regulatory Guidance Source: IMO Resolution A.931(22), Guidelines on Shipowners' Responsibilities in respect of Contractual Claims for Personal Injury to or Death of Seafarers, 17 December 2001, International Maritime Organization. Regulatory Guidance  

Shipowner

Shipowner means the person or persons or company registered as the owner of the ship or, in the absence of registration, the person or persons or company owning the ship. However, in the case of a ship owned by a State and operated by a company which in that State is registered as the ship’s operator, “owner” shall mean such company. This term also includes those who have ownership of the ship for a limited period pending its sale to a recycling facility. Source: IMO Resolution A.951(23), IMO Guidelines on Ship Recycling (resolution A.962(23)), 4 March 2004, International Maritime Organization. Regulatory Guidance  

Shipowner

"Shipowner" means the owner, including the registered owner, bareboat charterer, manager and operator of the ship. Source: International Convention on Civil Liability for Bunker Oil Pollution Damage, 2001. Legislation
Suitable Anchor

Suitable Anchor

Definition(s)

Suitable Anchor

“Suitable anchor” means that it is capable of supporting at least 5,000 pounds per employee attached or shall be designed, install ed, and used as follows:
  1. as part of a complete personal fall arrest system which maintains a safety factor of at least two (2);
  2. under the supervision of a qualified person.
Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. Regulations
Sub-Contractor

Sub-Contractor

Definition(s)

Sub-Contractor

"Sub-Contractor" means any person and/or employer (see definition of “person” and/or “employer”) who contracts to perform any part of oil and gas well drilling from contractor. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. Regulations
Sour Gas Pipeline Facility

Sour Gas Pipeline Facility

Definition(s)

Sour Gas Pipeline Facility

A pipeline and ancillary equipment that:
  1. contains a concentration of 100 parts per million or more of hydrogen sulfide;
  2. is located outside the tract of production; and
  3. is subject to the requirements of §3.36 of this title.1
Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Seismic Hole

Seismic Hole

Definition(s)

Seismic Hole

Any hole drilled for the purpose of securing geophysical information to be used in the exploration or development of oil, gas, geothermal, or other mineral resources. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
State

State

Definition(s)

State

Any of the 50 states that compose the United States, the District of Columbia, the Commonwealth of Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, or the Commonwealth of the Northern Mariana Islands. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
SQG

SQG

Definition(s)

SQG

A small quantity generator, as described in subsection (f)(2) of this section (relating to generator classification and accumulation time). Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Sludge

Sludge

Definition(s)

Sludge

Any solid, semi-solid, or liquid waste generated from a wastewater treatment plant or water supply treatment plant, or air pollution control facility, exclusive of the treated effluent from a wastewater treatment plant. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Surface Piping

Surface Piping

Definition(s)

Surface Piping

Any pipe within a storage facility that is directly connected to a storage well, outboard of the wellhead emergency shutdown valve and used to transport product, brine, or fresh water to or from a storage well whether such pipe is above or below ground level. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  

Surface Piping

Any pipe within a storage facility that is directly connected to a storage well, outboard of the wellhead emergency shutdown valve and used to transport gas, brine, or fresh water to or from a storage well whether such pipe is above or below ground level. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Storage Wellhead

Storage Wellhead

Definition(s)

Storage Wellhead

Equipment installed at the surface of the wellbore, including the casinghead and tubing head, spools, block or wing valves, and instrument flanges. Spool pieces must have a length of less than six feet to be considered a part of the storage wellhead. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Sensitive Areas

Sensitive Areas

Definition(s)

Sensitive Areas

These areas are defined by the presence of factors, whether one or more, that make an area vulnerable to pollution from crude oil spills. Factors that are characteristic of sensitive areas include the presence of shallow groundwater or pathways for communication with deeper groundwater; proximity to surface water, including lakes, rivers, streams, dry or flowing creeks, irrigation canals, stock tanks, and wetlands; proximity to natural wildlife refuges or parks; or proximity to commercial or residential areas. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Skim Hydrocarbons

Skim Hydrocarbons

Definition(s)

Skim Hydrocarbons

Oil and condensate which accumulate during produced water disposal operations. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Scrubber Oil

Scrubber Oil

Definition(s)

Scrubber Oil

Liquid hydrocarbons which accumulate in lines that are transporting casinghead gas and which are captured at the inlet to a gas processing plant. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  
Steam Drive Injection

Steam Drive Injection

Definition(s)

Steam Drive Injection

The continuous injection of steam into one set of wells (injection wells) or other injection source to effect oil displacement toward and production from a second set of wells (production wells). Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations