Definitions for "Recovery factor"
The percentage of total tons of coal estimated to be recoverable from a given area in relation to the total tonnage estimated to be in the ground prior to mining. The estimated recovery factors generally are 50 percent for underground mining methods and 80 to 90 percent for surface mining methods. More precise recovery factors can be calculated by determining the total coal in place before mining occurred and the total coal mined in any given area.
proportion of oil or gas which is recovered from a reservoir
The percentage of total hydrocarbons expected to be produced from a reservoir, well or field over its entire production lifespan.
Rating based on the efficiency of the product which is input required to raise 1 gallon of water 1 degree Fahrenheit.