S

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Sighting Survey

A survey to confirm that the relevant construction or the equipment is in a satisfactory condition and, as far as can be judged, will remain so until the postponed survey has been carried out Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards

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Safety-critical competency

Type of competence required of personnel in order to carry out an operation which, if carried out incorrectly or inadvertently, can lead to a major accident hazard. Source: ISO/TS 17969:2015, Petroleum, petrochemical and natural gas industries — Guidelines on competency for personnel, First Edition, June 2015. Global Standards

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Safety-critical task

Task performed on a safety-critical element which, if performed incorrectly due to lack of technical skills or knowledge or due to behaviour attributes, can lead to a major accident hazard. Source: ISO/TS 17969:2015, Petroleum, petrochemical and natural gas industries — Guidelines on competency for personnel, First Edition, June 2015. Global Standards

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SMR

Strengthening, modification, and/or repair Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards

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Site Clearance

Final cleanup of seafloor debris. Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards

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Structure Decommissioning

Removal of the deck, followed by removal of the jacket. All or part of the installation is usually removed from the site for disposal, recycle, use as an artificial reef, or reuse of platform components either onshore or offshore. Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards

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SIM Evaluation

SIM evaluation is the method of applying competent engineering to assess the impact that new data has on the fitness-for-purpose and the SIM strategy for the platform. Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards    

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Static Pushover Analysis

Application and incremental increase of a global static pattern of actions on a structure, including equivalent dynamic inertial actions, until a global failure mechanism occurs. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Static Pushover Method

Application and incremental increase of a global static pattern of actions on a structure, including equivalent dynamic inertial actions, until a global failure mechanism occurs. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Spectral Velocity

Maximum pseudo velocity response of a single degree of freedom oscillator subjected to ground motions due to an earthquake. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Spectral Displacement

The method (e.g. splice, potted socket, wedged socket) by which the rope is attached to the assembly interface. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Spectral Acceleration

Maximum absolute acceleration response of a single degree of freedom oscillator subjected to ground motions due to an earthquake. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Site Response Analysis

Upward wave propagation analysis from underlying bedrock to seafloor permitting the evaluation of the effect of local geological and soil conditions on the design ground motions at a given site. NOTE The site response analysis results can include amplitude, frequency content, and duration. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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SRC

Seismic risk category Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

SRC

Category defined from the exposure level and the expected intensity of seismic motions. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Seismic Risk Category

Category defined from the exposure level and the expected intensity of seismic motions. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Seismic Reserve Capacity Factor

Ratio of spectral acceleration which causes structural collapse or catastrophic system failure to the ELE spectral acceleration. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Seismic Hazard Curve

Curve showing the probability of exceedance against a measure of seismic intensity. NOTE The seismic intensity measures can include parameters such as peak ground acceleration, spectral acceleration, or spectral velocity. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Sea Floor Slide

Failure of sea floor slopes. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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Safety Systems

Systems provided on a platform to detect, control, and mitigate hazardous situations. NOTE Safety systems include gas detection, emergency shutdown, fire protection, and their control systems. Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards  

Safety Systems

Systems, including required utilities, which are provided to prevent, detect/ warn of an accidental event/abnormal conditions and/or mitigate its effects Interpretation: The following should be considered as safety systems: — ESD, including blowdown where relevant — PSD — fire and gas detection — PA/GA — fire-fighting systems — BOP incl. control system — safety systems for essential or important services — safety systems are normally considered as “on-demand” functions. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards

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Subrope-to-Rope Efficiency

The percentage of the full rope strength compared to the aggregate subrope strength of the assembly. 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

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Strand Assembly Checklist

A document completed during the strand assembly process which states the nominal values and records the actual values for each set-up of each step of the process of assembling strands. Source: API RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014. Global Standards

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Strain

The ratio of elongation to the gauge length over which the elongation takes place. 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