Publication Date:
2016-10-08
Description:
Two 4D seismic data sets are compared which were acquired simultaneously in a deepwater field but with differently sized acoustic sources with 2450 in 3 and 360 in 3 volumes. The data sets were processed using similar runstreams, enabling side-by-side comparison of the 4D features. Compared with the large-source data, the small-source data showed similar 4D signals, albeit with higher but acceptable levels of 4D noise. An overprint of the acquisition methodology was found to detrimentally impact the small-source data, but this was mitigated in processing. Opportunities for improvement of the small-source data in future dedicated surveys are proposed. A cost–benefit analysis is presented to show the relative value increase by using smaller, lower-cost surveys for frequent reservoir monitoring.
Print ISSN:
1070-485X
Electronic ISSN:
1938-3789
Topics:
Geosciences
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