Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Gushing Producible Well
Definition(s)
Gushing Producible Well
Gushing producible well: a well from which production can be carried out via pressures prevailing in the productive stratum or strata, without artificial lift methods. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsEC50
Definition(s)
EC50
EC50: the concentration of a test substance, which results in a 50% response with regard to the effect, measured by the test within a defined exposure period. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsDissolved Oil Content
Definition(s)
Dissolved Oil Content
Dissolved oil content: the sum of the contents of benzene, toluene, ethylebenzene and the 3 isomers of xylene, obtained, by application of Ospar agreement 2005-15 for the assessment of the dissolved oil content of an oil containing mixture, by quantifying measured peak surfaces against a series of standard solutions of said aromates in n-pentane. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsDisperged Oil Content
Definition(s)
Disperged Oil Content
Disperged oil content: the oil content as assessed in accordance with the Ospar agreement 2005-15. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsDirect Link With The Public Telephone Network
Definition(s)
Direct Link With The Public Telephone Network
Direct link with the public telephone network: a automatically operating telephone installation at a mining installation with which under normal circumstances telephone links can be formed at all times between the mining installation in question and the Dutch public telephone network. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsDependent Mining Station
Definition(s)
Dependent Mining Station
Dependent mining station: a mining installation from which, other than by a direct link with the public telephone network, communication is possible with the shore, vessels and aircraft only via a non-dependent mining installation. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsDiesel Oil
Definition(s)
Diesel Oil
Diesel oil: mineral oils with a flashpoint lower than 100 degrees Celsius, the content of monocyclical aromatics of which is more than 0.5% per weight unit and of which the content of polycyclical aromatics is more than 1 milligramme per kilogramme. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsCompression Body Shutoff Valve
Definition(s)
Compression Body Shutoff Valve
Compression body shutoff valve: tool in which an elastic body is located that can be deformed in such a way by expansion that it can shut off a borehole, even if drilling equipment is present in it. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsCHARM Model
Definition(s)
CHARM Model
CHARM model: the model for the assessment of chemical hazards and risks as meand in the Ospar-Decision of 2000/2. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsBore Dust
Definition(s)
Bore Dust
Bore dust: mixture of solid materials, released during the construction of the borehole, which contains drilling fluid of whatever content. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsBCF
Definition(s)
BCF
BCF: bio-concentration factor, determined in accordance with OECD 305 or ASTM E 1022. Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. RegulationsQuarry
Definition(s)
Quarry
Quarry: subsurface space formed by limestone production. Source: Mining Decree of the Netherlands, Netherlands, 2003 (as amended in 2007). LegislationQuarry
Meaning of quarry: (1) In these regulations, the term quarry means a quarry of a kind described in subclause (2) or subclause (3), and includes any place in which any material extracted or processed in a quarry is crushed or screened. (2) A quarry is any place— (a) where any person works above ground for the purpose of— (i) extracting any material, other than any coal or any mineral, from the earth; or (ii) processing any material, other than any coal or any mineral, extracted from the earth at that place; and (b) that has an area where any person works above ground for either of the purposes referred to in paragraph (a) and that,— (i) in the case of an area consisting of benches, exceeds 3.5 metres in height, measured from the top of the top bench to the bottom of the bottom bench; or (ii) in any other case, exceeds 3.5 metres in height, measured from its highest to its lowest point,— whether or not the material is extracted or processed for the purpose of commercial gain and whether or not the material is extracted or processed by the use of explosives. (3) A quarry is any place— (a) where any person works above ground for the purpose of— (i) extracting any material, other than any coal or any mineral, from the earth; or (ii) processing any material, other than any coal or any mineral, extracted from the earth at that place; and (b) that has an area where any person works above ground for either of the purposes referred to in paragraph (a) and that,— (i) in the case of an area consisting of benches, does not exceed 3.5 metres in height, measured from the top of the top bench to the bottom of the bottom bench; or (ii) in any other case, does not exceed 3.5 metres in height, measured from its highest to its lowest point,— where the material is extracted or processed either for the purpose of commercial gain or by the use of explosives or both for that purpose and by that means. Source: Health and Safety in Employment (Mining Administration) Regulations 1996, SR 1996/220, New Zealand, as of January 2011. RegulationsIsolated Work Place
Definition(s)
Isolated Work Place
“Isolated work place” means a work place that is more than two hours’ travel time from a hospital or a medical clinic under normal travel conditions using the fastest available means of transportation; lieu de travail isolé. Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. RegulationsSignaller
Definition(s)
Signaller
“Signaller” means a person instructed by an employer to direct, by means of visual or auditory signals, the safe movement and operation of materials handling equipment; signaleur. Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. RegulationsStandard First Aid Certificate
Definition(s)
Standard First Aid Certificate
“Standard first aid certificate” means the certificate issued by an approved organization for successful completion of a first aid course of at least two days’ duration; certificat de secourisme général. Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. RegulationsToilet Room
Definition(s)
Toilet Room
“Toilet room” means a room that contains a water closet or a urinal, but does not include an outdoor privy; cabinet de toilette. Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. RegulationsWater Monitor System
Definition(s)
Water Monitor System
“Water monitor system” means a system capable of deluging a space with water from monitors; système de régulation d’eau. Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsWater Deluge System
Definition(s)
Water Deluge System
“Water deluge system” means a system capable of deluging a space with water from fixed heads; système déluge. Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsUnmanned Installation
Definition(s)
Unmanned Installation
“Unmanned installation” means an installation on which persons are not normally present and in those instances when persons are present on the installation, their presence is for the purpose of performing operational duties, maintenance or inspections that will not necessitate an overnight stay; installation inhabitée. Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsMobile Platform
Definition(s)
Mobile Platform
“Mobile platform” means a platform that is designed to operate in a floating or buoyant mode or that can be moved from place to place without major dismantling or modification, whether or not it has its own motive power; plate-forme mobile. Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsLightship
Definition(s)
Lightship
For the purpose of this section, “lightship”, in relation to a mobile platform, means a platform with all its permanently installed machinery, equipment and outfit, including permanent ballast, spare parts normally retained on board and liquids in machinery and piping at their normal working levels, but not including liquids in storage or in reserve supply tanks, items of consumable or variable loads, stores and crew and their effects. Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsHydrocarbon Fire Test
Definition(s)
Hydrocarbon Fire Test
“Hydrocarbon fire test” means a test in which a specimen division, which division resembles as closely as possible the intended construction of the division, includes, where appropriate, at least one joint and has an exposed surface of not less than 4.65 m2 and a height or a length of not less than 2.44 m, and is exposed in a test furnace to temperatures corresponding approximately to a time-temperature relationship defined by a smooth curve drawn through the following temperature points measured above the initial furnace temperature, namely,- at the end of the first 3 minutes, 880°C,
- at the end of the first 5 minutes, 945°C,
- at the end of the first 10 minutes, 1032°C,
- at the end of the first 15 minutes, 1071°C,
- at the end of the first 30 minutes, 1098°C,
- at the end of the first 60 minutes, 1100°C, and
- at the end of the first 120 minutes, 1100°C; essai de résistance au feu d’hydrocarbures.
Hydrocarbon Fire Test
A hydrocarbon fire test is one in which the specimens defined for a standard fire test are exposed in a test furnace to temperatures corresponding approximately to a time-temperature curve relating to, and defined by, a smooth curve drawn through the following temperature points measured above the initial furnace temperature:- at the end of the first 3 minutes - 880°C
- at the end of the first 5 minutes - 945°C
- at the end of the first 10 minutes - 1032°C
- at the end of the first 15 minutes - 1071°C
- at the end of the first 30 minutes - 1098°C
- at the end of the first 60 minutes - 1100°C.
Gas Release System
Definition(s)
Gas Release System
In this section, “gas release system” means a system for releasing gas and combustible liquid from an installation, and includes a flare system, a pressure relief system, a depressurizing system and a cold vent system. Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsFlame-type Equipment
Definition(s)
Flame-type Equipment
“Flame-type equipment” means any electric or fired heating equipment that uses an open flame, electric arc or element, and includes a space heater, a torch, a heated process vessel, a boiler, an electric arc or an open flame welder, or an open element electric heater or appliance; équipement de type à flamme. Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsDependent Diving System
Definition(s)
Dependent Diving System
“Dependent diving system” means a diving system that is associated with an installation other than a diving installation and that does not function independently of the installation; système de plongée non autonome. Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. RegulationsClass H-120 Division
Definition(s)
Class H-120 Division
“Class H-120 division” means a division formed by a bulkhead or deck that is- constructed of steel or an equivalent material and suitably stiffened,
- constructed to prevent the passage of smoke and flame after exposure to a hydrocarbon fire test for 120 minutes, and
- insulated with non-combustible material so that, if either face is exposed to a hydrocarbon fire test, after 120 minutes the average temperature on the unexposed face will not increase by more than 139°C above the initial temperature, and the temperature at any point on the unexposed face, including any joint, will not increase by more than 180°C above the initial temperature; cloisonnement de classe H-120.
Class B-15 Division
Definition(s)
Class B-15 Division
“Class B-15 division” means a division formed by a bulkhead, ceiling or lining that is- constructed and erected entirely from non-combustible materials,
- constructed to prevent the passage of flame after exposure to a standard fire test for 30 minutes, and
- insulated so that if either face is exposed to the first 30 minute period of a standard fire test, the average temperature on the unexposed face will not increase at any time during the first 15 minutes of the test by more than 139°C above that initial temperature, and the temperature at any point on the unexposed face, including any joint, will not increase by more than 225°C above the initial temperature after exposure for 15 minutes; cloisonnement de classe B-15.
Class A-60 Division
Definition(s)
Class A-60 Division
“Class A-60 division” means a division formed by a bulkhead or deck that is- constructed of steel or an equivalent material and suitably stiffened,
- constructed to prevent the passage of smoke and flame after 60 minutes of exposure to a standard fire test, and
- insulated with non-combustible materials so that, if either side is exposed to a standard fire test, after 60 minutes the average temperature on the unexposed face will not increase by more than 139°C above the initial temperature and the temperature at any point on the unexposed face, including any joint, will not increase by more than 180°C above the initial temperature; cloisonnement de classe A-60.
- Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. Regulations
Class A-0 Division
Definition(s)
Class A-0 Division
Class A-0 division “Class A-0 division” means a division formed by a bulkhead or deck that is constructed- of steel or an equivalent material and suitably stiffened, and
- to prevent the passage of smoke and flame after 60 minutes of exposure to a standard fire test; cloisonnement de classe A-0.