GLOSSARY

A geographical area in which one or more oil or gas wells produce. A field may refer to surface area only or to underground productive formation. A single field may include several reservoirs separated either horizontally or vertically.

The highest temperature indicated on the thermometer inserted in the flask during a standard laboratory distillation. This is generally the temperature at which no more vapor can be driven over into the condensing apparatus.

The lowest temperature at which an oil vaporizes rapidly enough to burn for at least 5 seconds after ignition, under standard conditions.

The lowest temperature at which a liquid will generate sufficient vapor to flash (ignite) when exposed to a source of ignition.

a slang term for an unskilled or slightly skilled labourer in a number of industries. In particular, it is the official name of a semi-skilled role on an oil rig