Within the TaiDrill and SUGAR projects we are actively working on the joint interpretation of electromagnetic and seismic datasets in gas hydrate regions. During the cruise MSM35 and SO227 we provided the electromagnetic data and interpretation by using our bi-polarization “Sputnik” dipole source in combination with OBEM receiver stations.

We utilize MeBo borehole data as ground truthing data and to couple rock physics and geophysics. To exploit the complementing sensitivities of electromagnetics and seismics, we utilize joint elastic/electric effective medium models to distinguish between gas and hydrate occurrence to achieve a better control on gas hydrate estimates within the seafloor.

TaiDrill

TaiFlux

SUGAR

SO227

SO266

MSM35

Sputnik

OBEM

Attias, E., Weitemeyer, K., Hölz, S. , Naif, S., Minshull, T. A., Best, A. I., Haroon, A., Jegen-Kulcsar, M., Berndt, C. (2018) High-resolution resistivity imaging of marine gas hydrate structures by combined inversion of CSEM towed and ocean-bottom receiver data. Open Access Geophysical Journal International, 214 (3). pp. 1701-1714. DOI 10.1093/gji/ggy227.

Attias, E., Weitemeyer, K., Minshull, T. A., Best, A. I., Sinha, M., Jegen-Kulcsar, M., Hölz, S., Berndt, C. (2016) Controlled-source electromagnetic and seismic delineation of sub-seafloor fluid flow structures in a gas hydrate province, offshore Norway. Open Access Geophysical Journal International, 206 (2). pp. 1093-1110. DOI 10.1093/gji/ggw188

Berndt, C., Chi, W. C., Jegen, M., Lebas, E., Crutchley, G., Muff, S., Hölz, S., Sommer, M., Lin, S., Liu, C. S. , Lin, A. T., Klaeschen, D., Klaucke, I., Chen, L., Hsu, H. H., Kunath, P., Elger, J., McIntosh, K. D., Feseker, T. (2019) Tectonic Controls  on Gas Hydrate Distribution off SW Taiwan.  Open Access Journal of Geophysical Research: Solid Earth, 124 (2). pp. 1164-1184. DOI 10.1029/2018JB016213.

Jegen, M., Hoelz, S., Swidinsky, A., Sommer, M., Berndt, C., Chi, W. C. (2015) SO227 Electromagnetic and seismic investigation of methane hydrates offshore Taiwan - The Taiflux Experiment. Open Access In: Tagungsband Statusseminar Meeresforschung mit FS SONNE 2015. Projektträger Biologie, Energie, Ökologie, Rostock-Warnemünde, pp. 118-126

Jegen, M., Hölz, S., Swidinsky, A., Sommer, M., Berndt, C., Chi, W. (2014) Electromagnetic and Seismic Investigation of Methane Hydrates Offshore Taiwan – The Taiflux Experiment. [Paper] In: Oceans 2014. , 07.-10.04.2014, Taipei, China . OCEANS 2014 - TAIPEI

Minshull, T. A., Marín-Moreno, H., Betlem, P., Bialas, J. , Buenz, S., Burwicz, E. B. , Cameselle, A. L., Cifci, G., Giustiniani, M. , Hillman, J. I. T., Hölz, S., Hopper, J. R., Ion, G., León, R., Magalhaes, V., Makovsky, Y., Mata, M. P., Max, M. D., Nielsen, T., Okay, S., Ostrovsky, I., O'Neill, N., Pinheiro, L. M., Plaza-Faverola, A. A., Rey, D., Roy, S. , Schwalenberg, K., Senger, K. , Vadakkepuliyambatta, S.  Vasilev, A., Vázquez, J. T. (2020) Hydrate occurrence in Europe: A review of available evidence. Marine and Petroleum Geology, 111 . pp. 735-764. DOI 10.1016/j.marpetgeo.2019.08.014

Swidinsky, A., Sommer, M., Hölz, S., Jegen, M., Berndt, C., Chi, W. (2014) Electromagnetic imaging of gas hydrate deposits off-shore Taiwan: First results of the Taiflux survey. SEG Technical Program Expanded Abstracts, 2014 . pp. 760-764. DOI 10.1190/segam2014-0100.1.