Method for simultaneous collection of seismic data from shallow

Details Method for simultaneous collection of seismic data from shallow Method for simultaneous collection of seismic data from shallow

1990-05-25

1992-09-15

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 20, 367 49, 364421, G01Y 124, G01Y 138

Patent

active

051484064

ABSTRACT:
A method for simultaneous collection of seismic data of shallow and deep targets, in which two seismic streamers are towed at different water depths (1 and 2 in FIG. 2), and only one acoustic source of seismic signals is used. The seismic data recorded by the different streamers are mixed in a subsequent processing step, seismic data being weighted before being mixed by a weight which is made dependent on the recorded two-way travel time for the respective streamers, so that data from one or several streamers located at the least water depth receive a weight which decreases with travel time, whereas data from a corresponding number of streamers of greater depths receive a weight which increases with travel time.

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Brink, M; "Application of Vertical Receiver Arrays . . . "; 58th Annu. S & G Conf., Nov., 1988, pp. 460-463; abstract provided.
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Brink et al; "Marine Seismic Exploration . . . Bad Weather"; 49th European Ass. Exp. Geo. Mtg., Jun., 1987, pp. 4-5; abst. only provided.
Brink et al.; "Marine Acquisition . . . Deep Targets"; 59th Annu. S & G Int. Mtg., Nov., 1989, pp. 405-407; abst. only provided.

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