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In order for migrating petroleum to accumulate into a commercial amount, it must be stopped by a trap that is –

The loss of glycol in a liquid-desiccant dehydrator plant is a common problem. Normal loss in a good unit will amount to – 

In a water drive, water ______________________ the hydrocarbons when they enter the wellbore.

Many properties of gaseous mixtures are additive. The additive nature of partial pressures is expressed by __________________________Law.

To obtain a reasonably accurate value for absolute pressure when reading an ordinary gauge, ____________________ PSI should be added to the gauge.

Natural gas is usually a straight-chain hydrocarbon, although cyclic hydrocarbons are occasionally found in the mixtures.  Straight-chain and cyclic refer to the ______________________.

The absolute temperature scale based on the Fahrenheit scale is the Rankin scale.  Zero is on the Fahrenheit scale equals ________ degrees R on the Rankin scale.

Methane is a common constituent of natural gas.  It has the chemical symbol ___________________ and a molecular weight of 16.043.

Natural gas that is produced along with crude oil is called _______

The mass in pounds of a given element, which is equal numerically to its atomic weight is termed _____________or______________, and when the mass of a compound is expressed in pounds numerically equal to its molecular weight the term is referred to as a pound-mol.