دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device that detects vibrations in the earth. It is used in studying the earths interior and in prospecting for probable oil-bearing structures. Vibrations are created by discharging explosives in shallow boreholes, by striking the surface with a heavy blow, or by vibrating a heavy plate in contact with the ground. The type and velocity of the vibrations as recorded by the seismograph indicate the general characteristics of the section of earth through which the vibrations pass.

a device that records vibrations (natural or man-made) in the earth. With interpretation, the data can give information on buried strata.