Glossary

Number of cubic feet of gas produced per barrel of oil. Gas Well - Any well which:

• produces natural gas not associated or blended with crude petroleum oil at the time of production;
• produces more than 100,000 cubic feet of natural gas for each barrel of crude petroleum oil from the same producing horizon, or
• produces natural gas from a formation or producing horizon productive of gas only encountered in a wellbore through which crude petroleum oil also is produced through the inside of another string of casing or tubing. A well which produces hydrocarbon liquids, a part of which is formed by a condensation from a gas phase and a part of which is crude petroleum oil, shall be classified as a gas well unless there is produced one barrel or more of crude petroleum oil per 100,000 cubic feet of natural gas; and that the term "crude petroleum oil" shall not be construed to mean any liquid hydrocarbon mixture or portion thereof which is not in the liquid phase in the reservoir, removed from the reservoir in such liquid phase, and obtained at the surface as such.

The process of raising or lifting fluid from a well by means of gas injected down the well through tubing or tubing casing annulus. Injected gas aerates the fluid to make it exert less pressure than the formation pressure, consequently forcing the fluid out of the wellbore.

Includes any pipeline, truck, motor vehicle, boat, barge, or person authorized to gather or accept oil, gas, or geothermal resources from lease production or lease storage

A pipeline that transports oil or gas from a central point of production to a transmission line or mainline.

• All products of geothermal processes, embracing indigenous steam, hot water and hot brines, and geopressured water
• Steam and other gases, hot water and hot brines resulting from water, gas, or other fluids artificially introduced into geothermal formations
• Heat or other associated energy found in geothermal formations
• Any by-product derived from them

A well drilled within the established limits of a designated geothermal field.

• A geopressured geothermal well must be completed within a geopressured aquifer.
• A geopressured aquifer is a water-bearing zone with a pressure gradient in excess of 0.5 pounds per square inch per foot and a temperature gradient in excess of 1.6o F per 100 feet of depth.