Glossary Glossary of Industry Terms A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Abandoned Well A well that is permanently closed because it was a dry hole or it has stopped producing crude oil or natural gas. Abandonment 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. Abiogenic Theory 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. Acid Rain 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”). Acidizing A method of improving porosity and permeability of a reservoir by injecting pressurized acid to dissolve reservoir rock. Air Drilling 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. Allowables The production for a well or group of wells that is set by a regulatory authority ( such as the conservation commission ). Alternative Fuels Fuels that can replace of fossil fuels, such as ethanol, biodiesel, biogas, hydrogen. In motor transportation, compressed natural gas ( CNG ) is a gasoline alternative. Ammonia Colorless, strong-smelling gas omitted when nitrogen is extracted from crude oil products. Annulus The space between two pipes, one inside the other, or the space between pipe and the hole in which it is located. API Gravity 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. Associated Gas Gas that is produced from the same reservoir as crude oil, either as free gas or in solution. Audits 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. Kelt Exploration Ltd. Suite 300, East Tower 311 Sixth Avenue S.W. Calgary, Alberta, Canada T2P 3H2 T 403.294.0154 F 403.291.0155 24 HR EMERGENCY 1.855.845.9787 Legal & Privacy Notice