Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Shift and Crew Change
Definition(s)
Shift and Crew Change
Shift and crew change means daily shift changes and replacement of personnel at the end of the period of stay on the facility, both for operator and contractor employees. Hazardous exposure and unfortunate loads as mentioned in first subsection, mean exposure and loads that result from ergonomic conditions, chemical influences, radiation, noise, vibrations, climatic conditions and psychosocial conditions. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceShift and Crew Change
Shift and crew change means daily shift changes and replacement of personnel at the end of the period of work and stay at the onshore facility, both for operator and contractor employees. Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceRemote Measurement
Definition(s)
Remote Measurement
Remote measurement means a system which, regardless of visibility, light and weather conditions, can detect and map the position, area, quantity and properties of acute pollution. Such a system may consist of sensors and equipment deployed in satellites, airplanes and helicopters, or on facilities and vessels with associated services and procedures. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceRemote Measurement
Remote measurement means a system which, regardless of visibility, light and weather conditions, can discover and map the position, area, quantity and properties of acute pollution. Source: Guidelines Regarding the Framework Regulations, Norway, updated December 2012. Regulatory GuidanceRegional Stations
Definition(s)
Regional Stations
Since 1997, Norway has used the terms “reference stations” and “regional stations” in connection with monitoring of the seabed on the Norwegian continental shelf. Both types of stations normally cover the background level of selected components in the area, and the reference stations can, in given instances, function as regional stations and vice versa. Reference stations and regional stations in one and the same region are used to estimate background levels in the regions. The term reference stations is now discontinued, and all non-field-specific stations are called regional stations in the new Guidelines for environmental monitoring of the petroleum activities on the Norwegian continental shelf (in Norwegian only). Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceReference Stations
Definition(s)
Reference Stations
Since 1997, Norway has used the terms “reference stations” and “regional stations” in connection with monitoring of the seabed on the Norwegian continental shelf. Both types of stations normally cover the background level of selected components in the area, and the reference stations can, in given instances, function as regional stations and vice versa. Reference stations and regional stations in one and the same region are used to estimate background levels in the regions. The term reference stations is now discontinued, and all non-field-specific stations are called regional stations in the new Guidelines for environmental monitoring of the petroleum activities on the Norwegian continental shelf (in Norwegian only). Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceRadiation
Definition(s)
Radiation
Radiation means ionising and non-ionising radiation. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceRadiation
Radiation as mentioned in the first subsection, means ionising and non-ionising radiation. Source: Guidelines Regarding the Facilities Regulations, Norway, updated December 2012. Regulatory Guidance Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceRadiation
Radiation as mentioned in fourth subsection, means ionising and non-ionising radiation. Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidancePLONOR List
Definition(s)
PLONOR List
OSPAR List of Substances/Preparations Used and Discharged Offshore which Are Considered to Pose Little or No Risk to the Environment (PLONOR), www.klif.no. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidancePLONOR List
Plonor list: list of substances set out in the Ospar-agreement 2004-10 used and discharged during mining activities at sea and that are deemed to cause no or little harm to the environment. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsPerson Responsible for Communications
Definition(s)
Person Responsible for Communications
A person responsible for communications as mentioned in the second subsection, means a person who has a particular responsibility to ensure the professional operation of the facility's radio station and use of the other communication systems at all times. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceOSPAR
Definition(s)
OSPAR
Oslo-Paris Convention for the protection of the Marine Environment of the North-East Atlantic. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceOrganic Drilling Fluid
Definition(s)
Organic Drilling Fluid
Organic drilling fluid means mineral oil-based and synthetic drilling fluid. Solids include cuttings, produced sand and other solid materials from the well, such as packing and inert materials. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceOperational Organisation
Definition(s)
Operational Organisation
Personnel (asset owner/vendors) with work tasks related to the operation phase. Source: DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. Global StandardsOperational Organisation
The operational organisation as mentioned in the second subsection litera a, also means the emergency preparedness organisation. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceOil Content
Definition(s)
Oil Content
Oil content as mentioned in the third subsection, means content of dispersed oil in undiluted water. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceNecessary Functions
Definition(s)
Necessary Functions
Necessary functions as mentioned in the second subsection, means, inter alia, operational leadership, operation, remote measurement, environment, economy, logistics and information. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceMeasures and Limitations
Definition(s)
Measures and Limitations
Measures and limitations as mentioned in the first subsection, can be activity limitations, full shutdown or other measures that compensate for the impairment of safety functions that follows from overriding or interruption. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHook-Up and Start-Up
Definition(s)
Hook-Up and Start-Up
Hook-up and start-up is the period from a new facility is placed on the field to hydro carbons are contained in the processing systems, and production has started. In this period, the facility will be commissioned; all systems hooked up, tested and started. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHOCNF
Definition(s)
HOCNF
Recommendation 2010/3 on a Harmonised Offshore Chemical Notification Format (HOCNF) (supersedes Recommendation 2000/5 from 1 January 2011). Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHigh Risk
Definition(s)
High Risk
High risk as mentioned in this table litera a, means the cases when the diver does not have an unrestricted return to the diving bell, or where loss of the vessel's position can lead to loss of or damage to the diving bell, and possibly the associated bottom weight. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHealth Service
Definition(s)
Health Service
The health service means the organisation, the personnel and the resources that are necessary in order to attend to the health-related matters in the petroleum activities as mentioned in Section 6 of the Framework Regulations. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHazard and Accident Situations
Definition(s)
Hazard and Accident Situations
The hazard and accident situations as mentioned in the first subsection, also include other hazard and accident situations than the defined, complex hazard and accident situations, stress situations and situations where key personnel are incapacitated or are unable to carry out their duties. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHazard and Accident Situations
Hazard and accident situations as mentioned in the first subsection include a) situations where there is a danger that vessels or drifting objects can collide with facilities, b) blowouts from wells, c) explosions and fires, d) major accidental hydrocarbon and chemical discharges of significance to safety and the working environment, e) accidental discharges of petroleum, drilling fluid and chemicals of significance to the external environment, cf. recommended levels for notification of acute pollution, f) incidents where the use of radioactive sources is out of control. Source: Guidelines Regarding the Management Regulations, Norway, updated December 2012. Regulatory GuidanceHazard and Accident Situations
Hazard and accident situations as mentioned in the third subsection, can include a) situations where special hygiene or health preparedness measures have been implemented, e.g. in connection with a) illness attributed to the water or food supply, b) failure of normal hygienic procedures resulting in increased risk of illness, b) less serious situations in connection with positioning, pipeline systems and load bearing structures, c) violation of safety zones or areas subject to special limitations, cf. Section 57 of the Framework Regulations, d) situations which have led to loss of deck cargo, anchoring, mooring and towing equipment, and drilling and well equipment. The notification should indicate the exact position, e) accidental hydrocarbon and chemical discharges of lesser significance to safety and the working environment, f) accidental discharges of petroleum, drilling fluid and chemicals of lesser significance to the external environment, cf. recommended levels for notification of such discharges, g) situations where radioactive sources are stuck in the well, h) situations where individual measurements show that employees have been exposed to radiation (effective dose equivalent) of more than 20 mSv during the course of twelve months. Source: Guidelines Regarding the Management Regulations, Norway, updated December 2012. Regulatory GuidanceHazard and Accident Situations
Hazard and accident situations as mentioned in the first subsection can be a) explosions and fires, b) major accidental hydrocarbon and chemical discharges of significance for safety and the working environment, c) accidental discharges of petroleum and chemicals of significance for the external environment, d) incidents where the use of radioactive sources is out of control, e) hazardous substances not accounted for, cf. Regulations relating to explosive goods. Source: Guidelines Regarding the Management Regulations, Norway, updated December 2012. Regulatory GuidanceHazard and Accident Situations
Hazard and accident situations as mentioned in the third subsection, can include a) situations where special hygiene or health preparedness measures have been implemented, e.g. in connection with a) illness attributed to the water or food supply, b) failure of normal hygienic procedures resulting in increased risk of illness, b) less serious situations in connection with pipeline systems and load-bearing structures, c) accidental hydrocarbon and chemical discharges of lesser significance for safety and the working environment, d) accidental discharges of petroleum and chemicals of lesser significance for the external environment, e) situations where individual measurements show that employees have been exposed to radiation (effective dose equivalent) of more than 20 mSv during the course of twelve months. Source: Guidelines Regarding the Management Regulations, Norway, updated December 2012. Regulatory GuidanceHandover
Definition(s)
Handover
Handover of wells between units means handover between production, well service, operation, maintenance, etc. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceHandling
Definition(s)
Handling
Handling also means handling during hazard and accident situations. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceGoverning Documents
Definition(s)
Governing Documents
Governing documents as mentioned in the second subsection, litera b, also mean the guidelines, procedures, plans and programmes that are prepared according to these regulations and the Management Regulations. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceGiving the Right Notification
Definition(s)
Giving the Right Notification
Giving the right notification as mentioned in litera a, means notifying, inter alia, a) the facility's central control room or other central function, b) the Joint Rescue Coordination Centre c) one or more parts of the operator's emergency preparedness organisation, d) the contractors' emergency preparedness organisations, e) other licensees and partners in the event of an agreement relating to coordinated emergency preparedness resources, or in the event of joint use of production and/or transport systems. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceGiving the Right Notification
Giving the right notification as mentioned in litera a, means notifying, inter alia, a) the onshore facility's central control room or another central function, b) one or more levels of the operator's emergency preparedness organisation, c) the contractors' emergency preparedness organisations, d) other licensees, owners and contractual partners if there is an agreement relating to coordinated emergency preparedness resources or in joint use of production and/or transport systems. Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceFollow-Up Surveys
Definition(s)
Follow-Up Surveys
Follow-up surveys mean chemical and biological surveys both during and after acute pollution. It should be possible to utilise the results of such surveys both during the combat phase with regard to evaluation of relevant measures for optimal combating of the pollution, and in the restoration phase with regard to identification of resources that have been harmed. Such surveys may require special instrumentation and technical measuring equipment, particularly in the event of underwater discharges for surveys in the water column. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceFault Modes
Definition(s)
Fault Modes
Fault modes as mentioned in the fifth subsection, mean both external and internal failure modes. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceEmergency Preparedness Organisation
Definition(s)
Emergency Preparedness Organisation
Emergency preparedness organisation means the personnel including medical practitioner, who are directly linked to installation resources, area resources, external resources and regional resources. Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. Regulatory GuidanceEmergency Preparedness Organisation
Emergency preparedness organisation as mentioned in the first subsection, means the personnel, including a physician, directly associated with unit resources, area resources, external resources and regional resources. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory GuidanceEmergency Preparedness Organisation
Emergency preparedness organisation as mentioned in the first subsection, means the personnel directly associated with the unit resources, area resources, the external resources and the regional resources. Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceDefined Hazard and Accident Situations
Definition(s)
Defined Hazard and Accident Situations
The defined hazard and accident situations as mentioned in the first subsection, mean a representative selection of hazard and accident situations used in the dimensioning of the emergency preparedness. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory GuidanceCritical Activities
Definition(s)
Critical Activities
Critical activities inter alia include:- Work on pressurised, electrified or hydrocarbon service systems;
- Hot work;
- Work with explosives or substances that self-ignite;
- Work that entails risk of acute pollution;
- Lifting operations;
- Work that entails disconnection of safety systems;
- Working at heights;
- Confined space entry.
Critical Activities
Critical activities can be- work on pressurised, electrified or hydrocarbon-bearing systems,
- hot work,
- work with explosives or substances that self-ignite,
- work on radioactive sources,
- work that entails risk of acute pollution,
- work that entails disconnection of safety systems,
- lifting operations, cf. Section 92.