Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Hydrogen Sulfide Gas (H2S) No Hazard Area
Definition(s)
Hydrogen Sulfide Gas (H2S) No Hazard Area
No hazard area - any well which will not penetrate a known H2S horizon. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsVariance
Definition(s)
Variance
"Variance" means exception to promulgated standards, rules and regulations. As stated in the Act, 27-11-111 - Variances; "Any person affected by this Act may request a variance to any standard, rule or regulation promulgated under this Act". Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsTong/Snubline
Definition(s)
Tong/Snubline
"Tong/snubline" means a chain, wire or fiber rope, secured to a pipe tong handle which serves to impart a pulling power on the tong handle for the final tightening or torquing up of a threaded joint of pipe used in a well. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsSuitable 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:- as part of a complete personal fall arrest system which maintains a safety factor of at least two (2);
- under the supervision of a qualified person.
Power Transmission
Definition(s)
Power Transmission
"Power Transmission" means equipment such as shafting, gears, belts, pulleys or other parts used for transmitting power to the machine, and shall include prime movers. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsPlace Of Employment
Definition(s)
Place Of Employment
"Place of Employment" means plant, premises, or any other place where directed by the employer or about which an employee is permitted to work. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsNational Consensus Standard
Definition(s)
National Consensus Standard
"National Consensus Standard" means any standard or modification thereof which:- Has been adopted and promulgated by a nationally recognized standards-producing organization under procedures whereby it can by determined by the Secretary of Labor or by the Assistant Secretary of Labor that persons interested and affected by the scope or provisions of the standard have reached substantial agreement on its adoption;
- Was formulated in a manner which afforded an opportunity for diverse views to be considered;
- Has been designated as such a standard by the Secretary or the Assistant Secretary after consultation with other appropriate Federal Agencies.
Moving Parts
Definition(s)
Moving Parts
"Moving Parts" means gears, sprockets, revolving shafts, clutches, belts, pulleys, or other revolving or reciprocating parts that are attached to, or form an integral part of, a machine. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsLower Explosive Limit (LEL) Monitor
Definition(s)
Lower Explosive Limit (LEL) Monitor
“Lower Explosive Limit (LEL) Monitor” means an instrument that measures the LEL of flammable gases. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsLower Explosive Limit (LEL)
Definition(s)
Lower Explosive Limit (LEL)
“Lower Explosive Limit “ (LEL) means the lower limit of flammability of gas or vapor at ordinary ambient temperatures expressed by a percentage of gas or vapor in air by volume. This limit is assumed constant for temperatures up to 250°F (120°C) above this, it should be decreased by a factor of 0.7, because explosibility increases with higher temperatures. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsHospitalization
Definition(s)
Hospitalization
"Hospitalization" means admitted to the hospital for treatment for a period of twenty-four (24) hours or more. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsEstablished Federal Standard
Definition(s)
Established Federal Standard
"Established Federal Standard" means any operative standard established by Public Law 91-596, the Williams-Steiger Act, which applies to all business, including the Oil and Gas Well Drilling Industry, in effect on or before date of promulgation of these rules and regulations. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsEmployment
Definition(s)
Employment
"Employment" means all services for pay under a contract of hire. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsDrilling Or Drilling Operations
Definition(s)
Drilling Or Drilling Operations
"Drilling" (or "Drilling Operations") means any and all physical and mechanical aspects, including assembly and disassembly of all equipment customarily used in piercing or boring a well, as hereafter defined. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsSub-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. RegulationsCBMNG
Definition(s)
CBMNG
“CBMNG” Means Coal Bed Methane Natural Gas. "Combustible liquid" means any liquid having a flashpoint at or above 100°F. (37.8°C.). (See definition of "Flashpoint") Combustible liquids shall be divided into two classes as follows: (A) "Class II liquids" shall include those with flashpoints at or above 100°F. (37.8°C.) and below 140°F. (60°C.) except any mixture having components with flash points of 200°F. (93.3°C.) or higher, the volume of which make up ninety-nine (99) percent or more of the total volume of the mixture. Example: Stoddard Solvent; No.2 Fuel Oil. (B) "Class III liquids" shall include those with flashpoints at or above 140°F. (60°C.). Class III liquids are subdivided into two sub-classes:- "Class IIIA liquids" shall include those with flashpoints at or above 140°F. (60°C.) and below 200°F. (93.3°C.), except any mixture having components with flashpoints of 200°F. (93.3°C.), or higher, the total volume of which make up ninety-nine (99) percent or more of the total volume of the mixture. Example: Fuel Oil No. 6.
- "Class IIIB liquids" shall include those with flashpoints at or above 200°F. (93.3°C.). Example: Ethylene Glycol.
100 PPM Radius
Definition(s)
100 PPM Radius
The 100 parts per million radius of exposure as calculated in §3.36(c)(1) - (3) of this title (relating to oil, gas, or geothermal resource operation in hydrogen sulfide areas) for the sour gas pipeline facility. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsTract Of Production
Definition(s)
Tract Of Production
The surface area which overlies the area encompassed by a mineral lease or unit from which oil, gas, or other minerals are produced if such area is treated by the Oil and Gas Division of the commission as a single tract. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsSour Gas Pipeline Facility
Definition(s)
Sour Gas Pipeline Facility
A pipeline and ancillary equipment that:- contains a concentration of 100 parts per million or more of hydrogen sulfide;
- is located outside the tract of production; and
- is subject to the requirements of §3.36 of this title.1
Preliminary Contingency Plan
Definition(s)
Preliminary Contingency Plan
A contingency plan containing all of the elements required for a contingency plan under §3.36 of this title (relating to oil, gas, or geothermal resource operation in hydrogen sulfide areas), except that: (A) the plan need not contain the list of names and telephone numbers of residents within the area of influence if required under §3.36(c)(9)(I) of this section. In lieu of this list of names and telephone numbers, the plan shall contain a detailed explanation of the manner in which the names and telephone numbers of residents within the area of influence will be compiled prior to commencement of operations; (B) the plat detailing the area of influence may be:- the detailed plat required under §3.36(c)(9)(H);
- a plat containing the information required under §3.36(c)(9)(H), that identifies residential, business, and industrial areas with an estimate of the number of people that may be within any such areas; or
- one or more aerial photographs covering the area and providing the information required under §3.36(c)(9)(H); and
Nominal Pipe Size
Definition(s)
Nominal Pipe Size
The industry convention for naming pipe. Six inch nominal size pipe corresponds to pipe with an approximate inner diameter of six inches. The actual inner diameter varies based on the wall thickness of the pipe. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsExtension Of A Sour Gas Pipeline Facility
Definition(s)
Extension Of A Sour Gas Pipeline Facility
An addition to an operating sour gas pipeline facility regardless of ownership of the addition. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsConstruction Of A Facility
Definition(s)
Construction Of A Facility
Any activity conducted during the initial construction of a pipeline including the removal of earth, vegetation, or obstructions along the proposed pipeline right-of-way. The term does not include:- surveying or acquiring the right-of-way;
- clearing the right-of-way with the consent of the owner;
- repairing or maintaining an existing sour gas pipeline facility; or
- installing valves or meters or other devices or fabrications on an existing pipeline if such devices or fabrication do not result in an increase in the area of influence.
Area Of Influence
Definition(s)
Area Of Influence
Area along a sour gas pipeline facility represented by all possible areas of exposure using the 100 ppm radius. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsArea Of Influence
The spatial extent of the project’s impact due to water abstraction and discharge. Source: Identifying and assessing water sources: Guidance document for the onshore oil and gas industry, International Petroleum Industry Environmental Conservation Association (IPIECA), 2014. Global StandardsApplication
Definition(s)
Application
Software program that performs specific functions initiated by a user command or a process event and that can be executed without access to system control, monitoring, or administrative privileges [9]. Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National StandardApplication
IT solution, including application software, application data and procedures, designed to help an organization’s users perform particular tasks or handle particular types of IT problems by automating a business process or function. [ISO/IEC 27034-1:2011] Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. Global StandardsApplication
Application for a Permit to Construct a Sour Gas Pipeline Facility, and all required attachments. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsCore Hole
Definition(s)
Core Hole
Any hole drilled for the purpose of securing geological information to be used in the exploration or development of oil, gas, geothermal, or other mineral resources, except coal or uranium. For regulations governing coal exploratory wells, see Chapter 12 of this title (relating to Coal Mining Regulations), and for regulations governing uranium exploratory wells, see Chapter 11, Subchapter C of this title (relating to Surface Mining and Reclamation Division, Substantive Rules--Uranium Mining). Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsSeismic 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. RegulationsCathodic Protection Well
Definition(s)
Cathodic Protection Well
Any well drilled for the purpose of installing one or more anodes to prevent corrosion of a facility associated with the production of oil, gas, or geothermal resources, such as a well casing, storage and separation facility, or pipeline. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsWater (Bulk Shipment)
Definition(s)
Water (Bulk Shipment)
A device (such as a hydrostatic test water treatment unit) that:- is a tank or tank system comprising part of a wastewater treatment facility that is subject to regulation under either §§402 or 307(b) of the Clean Water Act, 33 USC §§1342 or 1317(b); and
- receives and treats or stores an influent wastewater that is a hazardous waste, that generates and accumulates a wastewater treatment sludge that is a hazardous waste, or treats or stores a wastewater treatment sludge that is a hazardous waste.