G - Physics – 01 – V
Patent
G - Physics
01
V
349/20
G01V 1/24 (2006.01)
Patent
CA 1216926
ABSTRACT OF THE DISCLOSURE A method and apparatus are disclosed for auto- matically controlling the operational modes of the recorders of a cableless seismic digital recording system from a control point. The recorders can be applied not only to situations where a high energy impulsive seismic source, such as dynamite, is used but also to situations where seismic-trace data generated by a low energy surface seismic source, such as a vibrator, is to be recorded which requires that such seismic-trace data be vertically stacked (summed) by the recorders before being recorded due to the limited capacity of magnetic tape cartridges. The seismic-trace data is preferably weighted before being vertically stacked for improving the signal-to-noise ratio. The operational modes of the recorders include "shooter's box" routines, dynamite (non-stacking) data processing, and stacking data processing with immediate or delayed recording. Selection among these operational modes is preferably made via coded radio signals trans- mitted from the control point. The disclosed method and apparatus automatically and efficiently select the opera- tional modes, thereby eliminating potential operator error and increasing the rate at which seismic-trace data can be acquired in the stacking data processing mode.
443463
Bemore Leroy Jr.
Bogey Terry L.
Warmack Ralph E.
Amoco Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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