دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

determines formation seismic wave velocities over specific intervals. Measurement is made of travel time from surface to downhole geophones.

n: an instrument placed on the surface that .detects vibrations passing through the earths crust. It is used in conjunction with seismography. Geophones are often called jugs. See seismograph.

an instrument that detects vibrations passing through the earth’s crust.

n: see geophone.

geophone.

n: (slang) the member of a seismograph crew who places the geophones.

a survey conducted using 3-component geophones for sensing seismic reflections in the vertical, horizontal, and crossline directions (3-C). In the marine environment, a hydrophone is included to acquire 4-component (4-C) data.

n: digital recording of the return to geophones of a shock wave emitted from the surface.