Today, we would like to introduce some basic terms in Seismic Acquisition:
Source Line - A line with some type of energy release (Dynamite / Vibroseis / Weight drop / Airgun) at specified intervals within a seismic program.
Receiver Line - A line with sensors (Geophone/Hydrophone) laid out within a seismic program at specified intervals.
Source Line Interval - The distance between 2 adjacent source lines.
Receiver Line Interval - The distance between 2 adjacent receiver lines.
Source Interval - The distance between adjacent source points along a source line.
Receiver Interval - The distance between each group of receivers (or single sensors) along a receiver line.
In-line Direction - The direction parallel to the receiver lines.
Cross-Line Direction - The direction perpendicular to the receiver lines.
Swath / Salvo - All the shot points located between adjacent receiver lines.
Recording Patch - All stations (receiver points) actively recording for a given shot point.
This is typically defined by the: (# of receiver lines) X (# of receivers per line).
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