This is an enhanced oil recovery process where water and gas injection are both carried out alternately for periods of time to reduce gas channeling from injector to producer.

A wellbore, drill hole or borehole is a hole drilled for the purpose of exploration or extraction of natural resources such as water, gas or oil where a well may be produced and a resource extracted for a protracted period. A wellbore is typically a straight shaft that "bores" into the ground to allow the recovery of natural resources.

Natural gas that contains less methane (typically less than 85% methane) and more ethane and other more complex hydrocarbons.

This describes oil that contains basic sediment and water.

This is a colloquial term for condensate, gas condensate, casinghead gasoline; liquid hydrocarbons produced with natural gas.