TY - GEN
T1 - Application of encoded multi-source waveform inversion to marine-streamer acquisition based on the global correlation
AU - Choi, Y.
AU - Alkhalifah, T.
PY - 2011
Y1 - 2011
N2 - The conventional multi-source inversion cannot be applied to the marine-streamer acquisition data because of the mismatch of acquisition geometries of the observed and modelled data. To make the inversion applicable to the marine-streamer acquisition, we use an objective function based on the global correlation between the observed and modelled data. The new residual seismogram based on the global correlation attenuates modeled data not supported by the observed data configuration, and thus, can be applied to multi-source marine-streamer acquisition, included blended sources. Furthermore, our method also employs the back-propagation algorithm (or Born approximation algorithm) similar to reverse-time migration based on the adjoint-state of wave equation to efficiently calculate the gradient. In the numerical examples the multi-source inversion based on the global correlation objective function resulted in a better inversion for the marine-streamer acquisition than the conventional approach.
AB - The conventional multi-source inversion cannot be applied to the marine-streamer acquisition data because of the mismatch of acquisition geometries of the observed and modelled data. To make the inversion applicable to the marine-streamer acquisition, we use an objective function based on the global correlation between the observed and modelled data. The new residual seismogram based on the global correlation attenuates modeled data not supported by the observed data configuration, and thus, can be applied to multi-source marine-streamer acquisition, included blended sources. Furthermore, our method also employs the back-propagation algorithm (or Born approximation algorithm) similar to reverse-time migration based on the adjoint-state of wave equation to efficiently calculate the gradient. In the numerical examples the multi-source inversion based on the global correlation objective function resulted in a better inversion for the marine-streamer acquisition than the conventional approach.
UR - http://www.scopus.com/inward/record.url?scp=80052484117&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.20149181
DO - 10.3997/2214-4609.20149181
M3 - Conference contribution
AN - SCOPUS:80052484117
SN - 9781617829666
T3 - 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011: Unconventional Resources and the Role of Technology. Incorporating SPE EUROPEC 2011
SP - 1600
EP - 1604
BT - Society of Petroleum Engineers - 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011 - Incorporating SPE EUROPEC 2011
PB - Society of Petroleum Engineers
ER -
