Porosity indicates a ratio of the empty spaces in the rock to the solid spaces in the rock. The ratio is usually expressed as a percentage.

Absolute pressure is determined by adding the _____________ and the gauge pressures.

When hydrocarbons (oil or gas) migrate through channels or fractures to regions of lower pressure, they usually travel deeper into the earth.

Gauge pressure is the pressure above or below ___________________________________.

Absolute pressure is reported as pounds per square inch gauge (psig).

Foretelling the future of a gas well may depend on –

The specific gravity of a liquid is usually expressed as a ratio of mass of a given volume of liquid to the mass of an equal volume of water.  The specific gravity of a gas is expressed as the ratio of the mass of a given volume of gas to the mass of and equal volume of ______________________.

What is the electrophile in the Friedel-Crafts alkylation reaction below?

The concept that expresses the relationship among pressure, temperature, and volume of a quantity of a gas is called the _____________________________________.

The term liquefied petroleum gas (LPG) usually refers to propane and butane. These gases are removed from natural gas because they-