Glossary

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Term Definition
Barrel (BBL)

A unit of measurement commonly used in quoting liquid hydrocarbon volumes.

  • 1 barrel _ 42 U.S. gallons
  • 35 imperial gallons (approx)
  • 159 liters (approx)
Basin

A depression in the earth's surface containing relatively thick deposits of sedimentary rocks.

BCF

Billion cubic feet, or 28.317 cubic meters. A unit commonly used in quoting volumes of natural gas.

BCFG

Billion cubic feet of gas.

Behind pipe

A productive reservoir which is isolated from the well bore by the casing.

BHL

Bottom hole location.

BO

Barrel of oil.

BOE

Barrel of oil equivalent. Used when converting oil and gas into an equivalent unit of volume. Typically, a figure of 6000 CFG per BBLO is used.

BOPD

Barrels of oil per day, a unit commonly used to describe daily rates of liquids production from a flowing well.

BTU

British Thermal Unit. A unit index of energy content in gas.

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