Calibration of simulator to seismic modeling for quantitative 4D seismic interpretation

Research output: Contribution to conferencePaper

8 Citations (Scopus)

Abstract

Realistic quantitative match between the results of simulator to seismic modelling and observed seismic can be used to update the reservoir model. For this purpose, it is vital to accurately adjust the parameters involved in petro-elastic model (PEM) and seismic modelling as the two controlling components of Sim2seis analysis. The PEM parameters are calibrated from a Sim2seis perspective using well log data. It is important to adapt the PEM parameters according to the lithology definition at the simulation cell scale, which is different from the log scale. The convolutional model (CM) is calibrated by comparison of the results with a full waveform pre-stack finite difference (FD) seismic modelling approach. The results show that if enough care is taken, CM can produce reliable results for 4D analysis. CM amplitudes are consistent with FD, while for time shift, in the case of small time shifts the error between the two methods can be of the same magnitude as the 4D signature.
Original languageEnglish
Publication statusPublished - May 2011
EventSPE EUROPEC/EAGE Annual Conference and Exhibition - Vienna, Austria
Duration: 23 May 201126 May 2011

Conference

ConferenceSPE EUROPEC/EAGE Annual Conference and Exhibition
CountryAustria
CityVienna
Period23/05/1126/05/11

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