05.07.2009

One thousandth of a darcy. Commonly used unit for reservoir rocks

Tariff that reflects the distance that the energy is due to be transmitted over. Opposite of postal tariff

In order to increase fuel efficiency in the US, average fuel mileage requirement is 23.4 mpg for passenger cars and 17.7 mpg for light trucks and sport utility vehicles

The movement of hydrocarbons from their source into reservoir rocks (see also gas migration)

See gas migration

A term sometimes used to refer to those industry activities that fall between exploration and production (upstream) and refining and marketing (downstream). The term is most often applied to pipeline transportation of crude oil and natural gas and is thus mostly the sector comprising all those activities relating to the construction and management of the oil transport infrastructure

Largest Israeli tube manufacturing company. Manufacture steel pipes for various uses, including water and sewage pipelines, oil and gas pipe for onshore and offshore pipelines, and pipes for general uses in construction, agriculture, and civil engineering

Methane hydrate is a cage-like lattice of ice inside of which are trapped molecules of methane,  the chief constituent of natural gas. If methane hydrate is either warmed or depressurized, it will revert back to water and natural gas. When brought to the earth’s surface, one cubic meter of gas hydrate releases 164 cubic meters of natural gas. Hydrate deposits may be several hundred meters thick and generally occur in two types of settings: under Arctic permafrost, and beneath the ocean floor. Methane that forms hydrate can be both biogenic, created by biological activity in sediments, and thermogenic, created by geological processes deeper within the earth.

A rating indicating the maximum pressure at which a pipeline or segment of a pipeline may be operated under a state’s regulations in normal conditions