A branch of the US Lands and Mineral Management Department formerly charged with supervising national resources. MMS had oversight of oil and gas leasing, royalty collection and other operations in US [..]

The evaluation of physical properties, usually including pressure, temperature and wellbore trajectory in three-dimensional space, while extending a wellbore. MWD is now standard practice in offshore directional wells, where the tool cost is offset by rig time and wellbore stability considerations if other tools are used. The measurements are made [..]

Mega annum. The abbreviation for million years that is most commonly used in the geologic literature.

A mixture of hydrofluoric acid [HF] and hydrochloric acid [HCl] or organic acid used as the main fluid in a sandstone matrix treatment. Hydrochloric acid or organic acid is mixed with HF to keep the p [..]

Mineralogy is the science and study of minerals with regard to their chemical composition, structure, formation and properties.

The evaluation of physical properties, usually including pressure, temperature and wellbore trajectory in three-dimensional space, while extending a wellbore. MWD is now standard practice in offshore directional wells, where the tool cost is offset by rig time and wellbore stability considerations if other tools are used. The measurements are made [..]

A measure of the total amount of hydroxyl ions in a solution as determined by titration with standardized acid and methyl orange indicator. The alkalinity test is a well-known water-analysis procedure [..]

The act of acquiring acreage for exploration or production activity.

The range of values for a quantity for which the error of a measuring instrument is intended to lie within specified limits. Within this range, the measurement has a well-defined accuracy or applicabi [..]

A colloid that repels or lacks affinity for the liquid in which it is dispersed. For example, clay is lyophobic to oil.