18 July 2017

Gas show

The gas that appears in drilling fluid returns, indicating the presence of a gas zone.
18 July 2017

Gas-cut mud

A drilling mud that has entrained formation gas, giving the mud a characteristically fluffy texture. When entrained gas is not released before the fluid returns to […]
18 July 2017

Gas-oil ratio

A measure of gas produced with the oil. It is expressed in cubic ft per barrel.
25 July 2017

Geologist

A scientist who gathers and interprets data pertaining to the rocks of the earth’s crust.
25 July 2017

Geolograph

Patented device which records the rate of penetration during drilling operations. Sometimes referred to as a “tattletale.”
18 July 2017

Geology

The science of the physical history of the earth and its life, especially as recorded in the rocks of the crust.
25 July 2017

Gravity

1) the attraction exerted by the earth’s mass on objects at its surface. 2) the weight of a body. See API gravity, specific gravity.
18 July 2017

Guide shoe

1) a short, heavy, cylindrical section of steel filled with concrete and rounded at the bottom, which is placed at the end of the casing string. […]
18 July 2017

Gusher

An oilwell that has come in with such great pressure that the oil jets out of the well like a geyser. In reality, a gusher is […]
21 October 2021

Health, safety, and environment (HSE)

A concept referring to a methodological framework studies and implements for the observance and protection of occupational health and safety rules and regulations along with environmental […]