Azimuthal
Azimuthal :
(1) (adj.) Formation Evaluation. Pertaining to being focused in one direction. An azimuthal, or azimuthally focused, measurement has one or more directions perpendicular to the surface of a logging tool from which it receives most of its signal. Examples are the density, laterolog andmicroresistivity logs. A nonazimuthal, or azimuthally symmetric measurement is one which measures equally in all directions around the tool. Examples are the induction, propagation resistivity log and gamma ray. See: Azimuthal Density, Azimuthal Laterolog, Logging Tool. (2) (adj.) Geology. Pertaining to the angle between the vertical projection of a line of interest onto a horizontal surface and true north or magnetic north measured in a horizontal plane, typically measured clockwise from north. See: Attitude, Dip, Strike, Trend
