Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Tolerance Acreage
Definition(s)
Tolerance Acreage
Acreage within a lease, pooled unit, or unitized tract that may be assigned to a well for proration purposes pursuant to special field rules in addition to the amount established for a prescribed or optional proration unit. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsSurplus Acreage
Definition(s)
Surplus Acreage
Substandard acreage within a lease, pooled unit, or unitized tract that remains unassigned after the assignment of acreage to each applied for, permitted, or completed well in a field, in an amount equaling or exceeding the amount established for standard or optional drilling units. Surplus acreage is distinguished from the term "tolerance acreage,"in that tolerance acreage is defined in context with proration regulation, while surplus acreage is defined by this rule only in context with well density regulation. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsSubstandard Acreage
Definition(s)
Substandard Acreage
Less acreage than the smallest amount established for standard or optional drilling units. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsCommission Designee
Definition(s)
Commission Designee
Director of the Oil and Gas Division or any Commission employee designated in writing by the director or the Commission. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsTank Vapors
Definition(s)
Tank Vapors
Gas which evolves from oil, condensate, or water when placed in a gunbarrel or storage tank. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsLow Pressure Separator Gas
Definition(s)
Low Pressure Separator Gas
Gas separated or liberated from a gas-liquid stream in a low pressure separation facility. Low pressure separation facilities include but are not limited to separators, treaters, free water knockouts, and other associated equipment. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsLease Production Facilities
Definition(s)
Lease Production Facilities
Production, separation, treating, compression, flowlines, storage, and other production handling equipment employed on a lease in the production of gas, condensate, and oil. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsGathering System
Definition(s)
Gathering System
Facilities employed to collect, compress, and transport gas to another gas gathering system, a gas plant, compression facility, or transmission line. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsFugitive Emissions
Definition(s)
Fugitive Emissions
Continuous or intermittent flammable gas and vapor releases that are relatively small compared to releases due to equipment failures. These releases occur during normal operation of closed systems from components such as pump seals, valve packing and flange gaskets. API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global StandardsFugitive Emissions
“Fugitive emission” means a controlled product in gas, liquid or solid form that escapes from processing equipment, from control emission equipment or from a product. Source: Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. Regulations Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. RegulationsFugitive Emissions
Releases of gas from lease production, gathering, compression, or gas plant equipment components, including emissions from valve stems, pressure relief valves, flanges and connections, gas-operated valves, compressor and pump seals, pumping well stuffing boxes, casing-to-casing bradenheads subject to the provisions of §3.17 of this title (relating to Pressure on Bradenhead), pits, and sumps, that cannot reasonably be captured and sold or routed to a vent or flare. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsWell Completion Report
Definition(s)
Well Completion Report
The report an operator is required to file with the Commission following the completion or recompletion of a well, if applicable, in accordance with §3.16(b) of this title (relating to Log and Completion or Plugging Report.). Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsTrade Name
Definition(s)
Trade Name
The name given to an additive or a hydraulic fracturing fluid system under which that additive or hydraulic fracturing fluid system is sold or marketed. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsSupplier
Definition(s)
Supplier
An organisation paid by the company under contract to provide goods, services or other resources. Source: IOGP Report No. 510, Operating Management System Framework for controlling risk and delivering high performance in the oil and gas industry, International Association of Oil & Gas Producers, June 2014. Global StandardsSupplier
“Supplier” means a person who manufactures, supplies, sells, leases, distributes or installs any tool, equipment, machine or device or any biological, chemical or physical agent to be used by an employee. Source: Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. Regulations Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. RegulationsSupplier
“Supplier” means a person who is a manufacturer, processor or packager of a hazardous substance or a person who, in the course of business, imports or sells a hazardous substance. Source: Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. RegulationsSupplier
A company that sells or provides an additive for use in a hydraulic fracturing treatment. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsSupplier
"Supplier" means a company which provides products; which may be a manufacturer, trader or agency. Source: Resolution MEPC.197(62), 2011 Guidelines for the development of the Inventory of Hazardous Materials, 15 July 2011, International Maritime Organization. Regulatory GuidanceService Company
Definition(s)
Service Company
A person that performs hydraulic fracturing treatments on a well in this state. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsRequestor
Definition(s)
Requestor
A person who is eligible to request information claimed to be entitled to trade secret protection in accordance with Texas Natural Resources Code, §91.851(a)(5). Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsHealth Professional Or Emergency Responder
Definition(s)
Health Professional Or Emergency Responder
A physician, physician's assistant, industrial hygienist, toxicologist, epidemiologist, nurse, nurse practitioner, or emergency responder who needs information in order to provide medical or other health services to a person exposed to a chemical ingredient. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsDelegate
Definition(s)
Delegate
The person authorized by the director to take action on behalf of the Railroad Commission of Texas under this section. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsChemical Ingredient
Definition(s)
Chemical Ingredient
A discrete chemical constituent with its own specific name or identity, such as a CAS number, that is contained in an additive. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsAdjacent Property
Definition(s)
Adjacent Property
A tract of property next to the tract of property on which the subject wellhead is located, including a tract that meets only at a corner point. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsAccredited Laboratory
Definition(s)
Accredited Laboratory
A laboratory as defined in Texas Water Code, §5.801. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsDrilling Operation
Definition(s)
Drilling Operation
A continuous effort to drill or deepen a wellbore for which the commission has issued a permit. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsBasic Electric Log
Definition(s)
Basic Electric Log
A density, sonic, or resistivity (except dip meter) log run over the entire wellbore. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsPhysical Termination Of Electric Service To The Well’s Production Site
Definition(s)
Physical Termination Of Electric Service To The Well's Production Site
Disconnection of the electric service to an inactive well site at a point on the electric service lines most distant from the production site toward the main supply line in a manner that will not interfere with electrical supply to adjacent operations, including cathodic protection units. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsGood Faith Claim
Definition(s)
Good Faith Claim
A factually supported claim based on a recognized legal theory to a continuing possessory right in a mineral estate, such as evidence of a currently valid oil and gas lease or a recorded deed conveying a fee interest in the mineral estate. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsEnhanced Oil Recovery (EOR) Project
Definition(s)
Enhanced Oil Recovery (EOR) Project
A project that does not include a water disposal project and is:- a Commission-approved EOR project that uses any process for the displacement of oil or other hydrocarbons from a reservoir other than primary recovery and includes the use of an immiscible, miscible, chemical, thermal, or biological process;
- a certified project described by Texas Tax Code, §202.054; or
- any other project approved by the Commission or its delegate for EOR.
Delinquent Inactive Well
Definition(s)
Delinquent Inactive Well
An inactive well for which, after notice and opportunity for a hearing, the Commission or its delegate has not extended the plugging deadline.1Source(s)
Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations