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Natural Gas

Across
The combination of the volume, temperature, and pressure relationships of Boyle's and Charles' laws resulting in the relationship PV=RT.
The accounting of the energy output and losses from a system to equal the energy input.
Relating to heat, a percentage indicating the available Btu input to combustion equipment that is converted to useful purposes.
Energy possessed by a body due to its own motion.
A property of ions or of radicals determining the number of ions with which they can combine in chemical reactions.
A valve, or plate, used to regulate the flow of air or other gases.
A well not in use because it was a dry hole originally, or because it no longer produces.
The connection between two lengths of material such as pipe.
The zero point on the absolute temperature scale.
The addition of pipe to an existing main to serve new customers.
A naturally occurring mixture of hydrocarbon and nonhydrocarbon gases found in porous geologic formations beneath the earth's surface, often in association with petroleum. The principal constituent is methane.
Down
Rigid headgear of varying materials designed to protect the workman's head.
A device used in cable tool drilling to remove drill cuttings from a well.
The pressure of natural gas as it is found in the underground formations from which it is produced.
That state of matter which has neither independent shape nor volume
One of the principal methods of drilling for gas and oil.
Removal of impurities from a gas or vapor by passing the gas through water or other liquid which retains or dissolves the impurity.
The transmission of energy by means of electromagnetic waves.
A distribution line that serves as a common source of supply for more than one service line.
Term usually applied to an interval in the cased hole where the top of a liner overlaps the bottom of a string of casing.