Potential

Potential

Definition(s)

Potential

The voltage between a submerged metal surface and a reference electrode. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  

Potential

"Potential" means the properly determined capacity of a well to produce oil, or gas, or both, under conditions prescribed by the commission. Source: Oil and gas Conservation, North Dakota Administrative Code, Chapter 43-02-03, April 2012. Regulations  

Potential

“Potential” means a well’s properly determined capacity to produce oil or gas under division-prescribed conditions. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations  

Potential

"Potential" means the properly determined capacity of a well to produce oil or gas, or both, under conditions prescribed by the Commission. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations  
Offshore Standard

Offshore Standard

Definition(s)

Offshore standard

The DNV offshore standards are documents which presents the principles and technical requirements for design of offshore structures. The standards are offered as DNV’s interpretation of engineering practice for general use by the offshore industry for achieving safe structures. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Object Standard

Object Standard

Definition(s)

Object standard

The standards listed in Table B2. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
NS

NS

Definition(s)

NS

Nova Scotia. Source: Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. Regulatory Guidance  

NS

Normal strength. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
MSL

MSL

Definition(s)

MSL

Mean sea level. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards Source: Deep Water Well Control  Guidlines. IADC Guidelines Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards  

MSL

Arithmetic mean of all sea levels measured at hourly intervals over a long period, ideally 19 years. NOTE Seasonal changes in mean level can be expected in some regions and over many years the mean sea level can change. [ISO 19901-1:2005, definition 3.15]. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Mean

Mean

Definition(s)

Mean

Statistical mean based on number of years of observations. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Mean Daily Average Temperature

Mean Daily Average Temperature

Definition(s)

Mean daily average temperature

The statistical mean average temperature for a specific calendar day. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Lowest Waterline

Lowest Waterline

Definition(s)

Lowest waterline

Typical light ballast waterline for ships, wet transit waterline or inspection waterline for other types of units. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Hard Hang-Off

Hard Hang-Off

Definition(s)

Hard Hang-Off (Riser Hang-Off)

The riser is effectively locked to the vessel and moves with it. Hard hang-off is applicable to either the deployment/retrieval configuration or the storm configuration. Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. Global Standards  
Lowest Mean Daily Temperature

Lowest Mean Daily Temperature

Definition(s)

Lowest mean daily temperature

The lowest value on the annual mean daily average temperature curve for the area in question. For temporary phases or restricted operations, the lowest mean daily temperature may be defined for specific seasons. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Load and Resistance Factor Design

Load and Resistance Factor Design

Definition(s)

Load and Resistance Factor Design (LRFD)

Method for design where uncertainties in loads are represented with a load factor and uncertainties in resistance are represented with a material factor. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
LAT

LAT

Definition(s)

LAT

level of low tide when all harmonic components causing the tides are in phase NOTE The harmonic components are in phase approximately once every 19 years, but these conditions are approached several times each year. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards

LAT

Level of low tide when all harmonic components causing the tides are in phase. NOTE The harmonic components are in phase approximately once every 19 years, but these condition. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards

LAT

Lowest astronomic tide. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards  
HS

HS

Definition(s)

HS

Significant wave height. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards

HS

High strength. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
HISC

HISC

Definition(s)

HISC

Hydrogen induced stress cracking. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Hindcasting

Hindcasting

Definition(s)

Hindcasting

Method of simulating historical (metocean) data for a region through numerical modelling Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards

Hindcasting

A method using registered meteorological data to reproduce environmental parameters. Mostly used for reproducing wave parameters. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
HAT

HAT

Definition(s)

HAT

Level of high tide when all harmonic components causing the tides are in phase NOTE The harmonic components are in phase approximately once every 19 years, but these conditions are approached several times each year. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards

HAT

Highest astronomical tide. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Guidance Note

Guidance Note

Definition(s)

Guidance note

Information in the standard added in order to increase the understanding of the requirements. Sources: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  

Guidance note

Contains advice which is not mandatory for the assignment or retention of class, but with which the Society, in light of general experience, advises compliance. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards
Foundation

Foundation

Definition(s)

Foundation

Soil and spudcan supporting a jack-up leg. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards

Foundation

A device transferring loads from a heavy or loaded object to the vessel structure. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  
Fatigue Limit States

Fatigue Limit States

Definition(s)

Fatigue Limit States

The fatigue limit state (FLS) addresses the cumulative effects of cyclic loading. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards

Fatigue Limit States (FLS)

Related to the possibility of failure due to the effect of cyclic loading. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Fatigue Critical

Fatigue Critical

Definition(s)

Fatigue critical

Structure with calculated fatigue life near the design fatigue life. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Response History

Response History

Definition(s)

Expected loads and response history

Expected load and response history for a specified time period, taking into account the number of load cycles and the resulting load levels and response for each cycle. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  
Expected Loads

Expected Loads

Definition(s)

Expected loads and response history

Expected load and response history for a specified time period, taking into account the number of load cycles and the resulting load levels and response for each cycle. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
EHS

EHS

Definition(s)

EHS

Extra high strength. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
DFF

DFF

Definition(s)

DFF

Design fatigue factor. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  

DFF

Design fatigue factors. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standar
Driving Voltage

Driving Voltage

Definition(s)

Driving voltage

The difference between closed circuit anode potential and the protection potential. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Design Value

Design Value

Definition(s)

Design value

value derived from the representative value for use in the design verification procedure. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards

Design value

The value to be used in the deterministic design procedure, i.e. characteristic value modified by the resistance factor or load factor. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
Design Brief

Design Brief

Definition(s)

Design brief

An agreed document where owners requirements in excess of this standard should be given. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
DDF

DDF

Definition(s)

DDF

Deep draught floaters. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards
CN

CN

Definition(s)

CN

Classification note. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards  

CN

Control Network. Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National Standard
Classification Note

Classification Note

Definition(s)

Classification note

The Classification Notes cover proven technology and solutions which is found to represent good practice by DNV, and which represent one alternative for satisfying the requirements stipulated in the DNV Rules or other codes and standards cited by DNV. The classification notes will in the same manner be applicable for fulfilling the requirements in the DNV offshore standards. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards