Glossary

All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Term Definition
Marine

Used as a modifier of sedimentary rock to denote deposition in the ocean.

Mature

Used in association with source rock. A description applied to organic rich rock which is capable, because of sufficient temperature and burial depth, of generating hydrocarbons.

mD

Millidarcy , a unit of measurement used to describe permeability, i.e., the tendency for liquids to flow through a rock unit. A high permeability indicates a good reservoir.

Migration

The movement of hydrocarbons from the source rock to the reservoir.

MMBLS

Million barrels.

MMBO

Million barrels of oil.

MMBTU

Million British Thermal Units.

MMCFD


Million cubic feet of gas per day. A measure of gas flow rates from a producing well.

Monte Carlo

A methodology for estimating a given quantity based on the statistical distribution of input values on which the quantity depends. Typically, the output quantity is calculated several thousand times (each calculation is called a trial), for each trial using input parameter values extracted randomly according to their statistical distributions. The result is a statistical distribution of output values.

MSCF

Thousand standard cubic feet at atmospheric conditions.

Go To Top