Glossary of Industry Terms
A well that is permanently closed because it was a dry hole or it has stopped producing crude oil or natural gas.
Permanent shutdown of a drilled well so that it can no longer produce crude oil and / or natural gas and can be left indefinitely without any potential to damage freshwater supplies, potential petroleum reservoirs or the environment.
A theory of the origin of petroleum in which it is thought to have formed from hydrocarbons trapped inside the earth while the planet was forming.
Water vapour that has combined with sulphur dioxide and nitrogen oxide gases in the atmosphere to form acidic compounds. These compounds can migrate hundreds of kilometres before falling to the earth as rain, drizzle, snow or dry particles ( the fallout is also known as “acid precipitation” or “acid deposition”).
A method of improving porosity and permeability of a reservoir by injecting pressurized acid to dissolve reservoir rock.
The use of compressed air instead of mud as drilling fluid to remove drill cuttings; air drilling increases penetration rates but offers no control of downhole gas pressure or water in subsurface formations.
The production for a well or group of wells that is set by a regulatory authority ( such as the conservation commission ).
Fuels that can replace of fossil fuels, such as ethanol, biodiesel, biogas, hydrogen. In motor transportation, compressed natural gas ( CNG ) is a gasoline alternative.
Colorless, strong-smelling gas omitted when nitrogen is extracted from crude oil products.
The space between two pipes, one inside the other, or the space between pipe and the hole in which it is located.
A scale developed by the American Petroleum Institute measuring the density or specific gravity of crude oil; the higher the number, the lighter the oil.
Gas that is produced from the same reservoir as crude oil, either as free gas or in solution.
Examinations taken by staff or a third party to help measure a company's compliance with legislation and/or internal requirements, and to identify opportunities for improvement. Audits can involve field inspections, interviews with management and document review.