Ensuring correct clock timing in ocean bottom node acquisition

Olofsson, Björn; Woje, Geir

doi:10.1190/1.3513176

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2016

2024

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Cited by 3 publications

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“…The constant scalar s o and s(t) are the scalars for deep and shallow layer velocities. Here we assume node clock drift, the other important factor affecting the direct arrival time (Olofsson and Woje, 2010), has been corrected in the input data using time stamps from deployment and retrieval or using other means such as seismic interferometry with passive seismic data (Hatchel and Mehta, 2010).…”

Section: Methodsmentioning

confidence: 99%

Joint inversion of water velocity and node position for ocean-bottom node data

Amini

Peng

Zhao

et al. 2016

SEG Technical Program Expanded Abstracts 2016

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Variation of sound wave velocity in water (water velocity) and node positioning errors can cause strong 4D noise in ocean bottom node (OBN) time-lapse processing if they are not addressed correctly. Here we proposed a method to jointly invert the water velocity and the node position from the recorded direct arrival time in the data. We validated this method using synthetic and real OBN data examples from deep-water Gulf of Mexico.

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Section: Methodsmentioning

confidence: 99%