Timed shooting with a dynamic delay
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United States of America Patent
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Nov 19, 2002
Grant Date -
Sep 19, 2002
app pub date -
Mar 13, 2001
filing date -
Mar 13, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention, in certain embodiments, discloses a method for acquiring marine seismic data using a seismic acquisition system where shot points are determined and shot records recorded. A time at which the source vessel will be substantially at a shot point position is predicted and the seismic source is activated at the shot point. The shot is recorded and the next location for recording a shot is determined. If the source vessel has passed the determined next shot point position, the seismic source is activated and a shot is recorded. If the source vessel has not reached the next shot point, a time delay is implemented until the shot point is reached. The method allows for efficient acquisition of seismic data under varying field conditions by resembling a distance based shot point determination method unless a time based acquisition method becomes more appropriate due to field conditions or other operational considerations.
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