Marchenko Redatuming and Imaging for Carbon Sequestration Monitoring: Application to The Frio Experiment

Mert Sinan Recep Kiraz, Purdue University


The application of Marchenko redatuming and imaging for carbon sequestration monitoring using both synthetic and observed data from the Frio carbon sequestration experiment is investigated in this study. The Marchenko approach can be used to eliminate disturbing effects of overburden structure by placing virtual sources near target structures in the subsurface for seismic imaging. Two synthetic examples, one with a simple layered velocity model and one with a velocity model derived from the first arrival travel-times from the Frio carbon sequestration experiment are first investigated. Marchenko redatuming and inversion is then applied to the observed data from the Frio experiment and compared with traditional vertical seismic profiling (VSP) corridor stacks. Marchenko inversion is also applied near the injection zone to image the pre- and post-injection data and compared with conventional processing. In each case, a good agreement was found. Marchenko redatuming and imaging provides an alternative to conventional VSP processing for monitoring injected CO2 at the target zone and has the potential of providing more consistent and accurate inversion results of the subsurface.




Nowack, Purdue University.

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