Abstract
A combination of seismic and geoelectric processing was studied by means of a structurally constrained inversion approach. Structural constraints were interpreted from the seismic data and integrated into the geoelectric inversion through a local regularization, which allowed inverted resistivities to behave discontinuously across defined boundaries. This arranged seismic processing and constrained resistivity inversion in a sequential workflow, making the generic assumption that the petrophysical parameters of both methods change across common lithostructural boundaries. We evaluated the approach using a numerical example and a real data example from the Ketzin pilot storage site, Germany. The latter demonstrated the efficiency of this approach for combining 4D seismic and surface-downhole geoelectric data. In consistence with the synthetic example, the constrained resistivity inversions produced clearer delineated images along the boundary between caprock and reservoir formation. Near the -flooded reservoir, the seismic and geoelectric time-lapse anomalies correlated well. At some distance to the downhole electrodes, however, the geoelectric images conveyed a notably lower resolution in comparison to the corresponding seismic images. Both methods confirm a northwesterly trend for the migration at the Ketzin site, although a rather northerly direction was initially expected. The results demonstrate the relevance of the presented approach for the combination of both methods for integrated geophysical storage monitoring.
REFERENCES
- 2011, plume modeling in deep saline reservoirs by 2D ERT in boreholes: The Leading Edge, 30,
24–33 , doi:10.1190/1.3535429 .1070-485X AbstractGoogle Scholar , - 1988, Comparing hard and soft prior bounds in geophysical inverse problems: Geophysical Journal, 94,
249–261 , doi:10.1111/j.1365-246X.1988.tb05899.x GJOUDQ 0275-9128 .CrossrefGoogle Scholar , - 2010, Modelling the geoelectric and seismic reservoir response caused by carbon dioxide injection based on multiphase flow simulation: Results from the SINK project: Chemie der Erde — Geochemistry, 70,
173–183 .CrossrefWeb of ScienceGoogle Scholar , - 2012, Surface-downhole electrical resistivity tomography applied to monitoring of the storage Ketzin (Germany): Geophysics, 77, no. 6,
B253–B267 , doi:10.1190/geo2011-0515.1 .GPYSA7 0016-8033 AbstractWeb of ScienceGoogle Scholar , - 2011, Time-lapse processing of 2D seismic profiles with testing of static correction methods at the injection site Ketzin (Germany): Journal of Applied Geophysics, 75, no. 1,
124–139 , doi:10.1016/j.jappgeo.2011.05.005 .JAGPEA 0926-9851 CrossrefWeb of ScienceGoogle Scholar , - 1999,
Faziesentwicklung des Keupers im Germanischen Becken , in Hauschke, N.V. Wilde, eds., Trias, eine ganz andere Welt. München: Verlag Dr. Friedrich Pfeil,129–173 (in German).Google Scholar , - 2005, in
Paläographischer Überblick, Stratigraphie von Deutschland IV , edited by Beutler, G., chapter Keuper, Cour. Forsch.-Inst. Senckenberg,253 (in German).Google Scholar , - 2008, Best practice for the storage of in saline aquifers — observations and guidelines from the SACS and STORE projects. Nottingham, UK, British Geological Survey,
267 (British Geological Survey Occasional Publication, 14), http://nora.nerc.ac.uk/2959/, accessed 15 November 2012.Google Scholar , - 2012, Constraining 3-D electrical resistance tomography with GPR data for improved aquifer characterization: Journal of Applied Geophysics, 78,
68–76 , doi:10.1016/j.jappgeo.2011.04.008 .JAGPEA 0926-9851 CrossrefWeb of ScienceGoogle Scholar , - 2007, Magnetotelluric inversion constrained by seismic data in the Tucuman basin (Andean foothills, 27 degrees S,NW Argentina): Journal of Geophysical Research Solid Earth : JGR, 112,
B09104 , doi:10.1029/2006JB004455 .JGEREE 0148-0227 CrossrefWeb of ScienceGoogle Scholar , - 2006, Baseline characterization of the SINK geological storage site at Ketzin, Germany: Environmental Geosciences, 13,
145–161 , doi:10.1306/eg.02080605016 .1075-9565 CrossrefGoogle Scholar , - 2010, Reservoir characterization of a storage aquifer: The upper triassic Stuttgart Formation in the Northeast German Basin: Marine and Petroleum Geology, 27,
2156–2172 , doi:10.1016/j.marpetgeo.2010.07.010 .MPEGD8 0264-8172 CrossrefWeb of ScienceGoogle Scholar , - 2007, The mudstone-dominated caprock system of the -storage site at Ketzin, Germany:
Proceedings of the 2007 AAPG Annual Convention and Exhibition .Google Scholar , - 2003, Resolution, stability and efficiency of resistivity tomography estimated from a generalized inverse approach: Geophysical Journal International, 153,
305–316 , doi:10.1046/j.1365-246X.2003.01890.x .GJINEA 0956-540X CrossrefWeb of ScienceGoogle Scholar , - 2009, Simultaneous constraining of model and data smoothness for regularization of geophysical inverse problems: Geophysical Journal International, 176,
151–163 , doi:10.1111/j.1365-246X.2008.03949.x .GJINEA 0956-540X CrossrefWeb of ScienceGoogle Scholar , and SINK Group 2009. Monitoring at the SINK site: A concept integrating geophysics, geochemistry and microbiology: Energy Procedia, 1, no. 1,2251–2259 , doi:10.1016/j.egypro.2009.01.293 .EPNRCV 1876-6102 CrossrefGoogle Scholar- 2011, Borehole seismic monitoring of storage within a saline aquifer at Ketzin, Germany:
EAGE Borehole Geophysics Workshop — Emphasis on 3D VSP , EarthDoc-47183.Google Scholar , - 2006, Three-dimensional modelling and inversion of dc resistivity data incorporating topography — II. Inversion: Geophysical Journal International, 166,
506–517 , doi:10.1111/j.1365-246X.2006.03011.x .GJINEA 0956-540X CrossrefWeb of ScienceGoogle Scholar , - 2011, Imaging of a fault zone by a large-scale DC resistivity experiment and seismic structural information:
Near Surface 2011 — The 17th European Meeting of Environmental and Engineering Geophysics , Extended Abstracts.CrossrefGoogle Scholar , - 1993, The use of the L-curve in the regularization of discrete ill-posed problems: SIAM Journal on Scientific Computing, 14,
1487–1503 , doi:10.1137/0914086 .SJOCE3 1064-8275 CrossrefWeb of ScienceGoogle Scholar , - 2008, The 4D microgravity method for waterflood surveillance: Part IV — Modeling and interpretation of early epoch 4D gravity surveys at Prudhoe Bay, Alaska: Geophysics, 73, no 6,
WA173–WA180 , doi:10.1190/1.2991120 .GPYSA7 0016-8033 AbstractWeb of ScienceGoogle Scholar , - 2012, Time-lapse analysis of sparse 3D seismic data from the storage pilot site at Ketzin, Germany: Journal of Applied Geophysics, 84,
14–28 , doi:10.1016/j.jappgeo.2012.05.010 .JAGPEA 0926-9851 CrossrefWeb of ScienceGoogle Scholar , - 2012, Monitoring and volumetric estimation of injected using 4D seismic, petrophysical data, core measurements and well logging: A case study at Ketzin, Germany: Geophysical Prospecting, 60,
957–973 , doi:10.1111/j.1365-2478.2012.01045.x GPPRAR 0016-8025 .CrossrefWeb of ScienceGoogle Scholar , - 2009, Joint inversion of marine magnetotelluric and gravity data incorporating seismic constraints: Preliminary results of sub-basalt imaging off the Faroe Shelf: Earth and Planetary Science Letters, 282,
47–55 , doi:10.1016/j.epsl.2009.02.018 .EPSLA2 0012-821X CrossrefWeb of ScienceGoogle Scholar , - 2007, 3D baseline seismics at Ketzin, Germany: The SINK project: Geophysics, 72, no. 5,
B121–B132 , doi:10.1190/1.2754667 .GPYSA7 0016-8033 AbstractWeb of ScienceGoogle Scholar , - 2011, A footprint of rainfall on land seismic data repeatability at the storage pilot site, Ketzin, Germany:
81st Annual International Meeting, SEG , Expanded Abstracts,4165–4169 .Google Scholar , - 2010a, Enhancing seismic data resolution using the pre-stack blueing technique: An example from the Ketzin injection site, Germany: Geophysics, 75, no. 6,
V101–V110 , doi:10.1190/1.3483900 .GPYSA7 0016-8033 AbstractWeb of ScienceGoogle Scholar , - 2010b, Monitoring response on surface seismic data; a rock physics and seismic modeling feasibility study at the sequestration site, Ketzin, Germany: Journal of Applied Geophysics, 71,
109–124 , doi:10.1016/j.jappgeo.2010.05.004 .JAGPEA 0926-9851 CrossrefWeb of ScienceGoogle Scholar , - 2009, Application of the continuous wavelet transform on seismic data for mapping of channel deposits and gas detection at the SINK site, Ketzin, Germany: Geophysical Prospecting, 57,
111–123 , doi:10.1111/j.1365-2478.2008.00723.x .GPPRAR 0016-8025 CrossrefWeb of ScienceGoogle Scholar , and the SINK Group 2010, Geoelectrical methods for monitoring geological storage: First results from cross-hole and surface-downhole measurements from the SINK test site at Ketzin (Germany): International Journal of Greenhouse Gas Control, 4, no. 5,816–826 , doi:10.1016/j.ijggc.2010.05.001 .IJGGBW 1750-5836 CrossrefWeb of ScienceGoogle Scholar- 2011, Structural interpretation and application of spectral decomposition for facies analysis of three-dimensional reflection seismic data at the Ketzin storage site: Master thesis, Technical University Berlin, Institute of Applied Geosciences, FG Exploration Geology.Google Scholar ,
- 2011, Experimental evaluation of the impact of the interactions of -SO2, brine, and reservoir rock on petrophysical properties: A case study from the Ketzin test site, Germany: Geochemistry, Geophysics, Geosystems, 12,
Q05010 , doi:10.1029/2010GC003469 .GGGGFR 1525-2027 CrossrefWeb of ScienceGoogle Scholar , - 1995, Least squares deconvolution of apparent resistivity pseudosections: Geophysics, 60,
1682–1690 , doi:10.1190/1.1443900 .GPYSA7 0016-8033 AbstractWeb of ScienceGoogle Scholar , - 2011, Time-lapse seismic surface and down-hole measurements for monitoring storage in the SINK project (Ketzin, Germany): Energy Procedia, 4,
3435–3442 , doi:10.1016/j.egypro.2011.02.268 .EPNRCV 1876-6102 CrossrefGoogle Scholar , and Ketzin Group 2011, Progress report on the first European on-shore storage site at Ketzin (Germany) — Second year of injection: Energy Procedia, 4,3246–3253 , doi:10.1016/j.egypro.2011.02.243 .EPNRCV 1876-6102 CrossrefGoogle Scholar- NETL 2009, Best practices for: Monitoring, verification, and accounting of stored in deep geologic formations: National energy technology laboratory, USA, http://www.netl.doe.gov/technologies/carbon_seq/refshelf/MVA_Document.pdf, accessed 15 November 2012.Google Scholar
- 2010, Lithological and petrophysical core-log interpretation in SINK, the European onshore research storage and verification project: SPE Reservoir Evaluation & Engineering, 13, no. 2,
179–192 , doi:10.2118/115247-PA .SREEFG 1094-6470 CrossrefWeb of ScienceGoogle Scholar , - 2000, Use of block inversion in the 2-D interpretation of apparent resistivity data and its comparison with smooth inversion: Journal of Applied Geophysics, 45, no. 2,
63–81 , doi:10.1016/S0926-9851(00)00019-7 .JAGPEA 0926-9851 CrossrefWeb of ScienceGoogle Scholar , - 1979, Constrained inversion of potential field data: Geophysical Prospecting, 27,
726–748 , doi:10.1111/j.1365-2478.1979.tb00993.x .GPPRAR 0016-8025 CrossrefWeb of ScienceGoogle Scholar , - 1999, Focusing geophysical inversion images: Geophysics, 64,
874–887 , doi:10.1190/1.1444596 .GPYSA7 0016-8033 AbstractWeb of ScienceGoogle Scholar , - 1987, Resistivity inversion with a priori information: Geophysical Prospecting, 35,
590–603 , doi:10.1111/j.1365-2478.1987.tb00837.x .GPPRAR 0016-8025 CrossrefWeb of ScienceGoogle Scholar , - 2006, Three-dimensional modelling and inversion of dc resistivity data incorporating topography — I. Modeling: Geophysical Journal International, 166,
495–505 , doi:10.1111/j.1365-246X.2006.03010.x .GJINEA 0956-540X CrossrefWeb of ScienceGoogle Scholar , - 2005, Constrained resistivity inversion using seismic data: Geophysical Journal International, 160,
785–796 , doi:10.1111/j.1365-246X.2005.02566.x .GJINEA 0956-540X CrossrefWeb of ScienceGoogle Scholar , - 2009, Status report on the first European on-shore storage site at Ketzin (Germany): Energy Procedia, 1, no. 1,
2029–2035 , doi:10.1016/j.egypro.2009.01.264 .EPNRCV 1876-6102 CrossrefGoogle Scholar , and Ketzin Group , 2011, Application of a vertical electrical resistivity array (VERA) for monitoring migration at the Ketzin site: First performance evaluation: Energy Procedia, 4,3363–3370 , doi:10.1016/j.egypro.2011.02.258 .EPNRCV 1876-6102 CrossrefGoogle Scholar- 2012, A modular geoelectrical monitoring system as part of the surveillance concept in storage projects: Energy Procedia, 23,
400–407 , doi:10.1016/j.egypro.2012.06.062 .EPNRCV 1876-6102 CrossrefGoogle Scholar , - 2008, Adaptive tetrahedral mesh generation by constrained Delaunay refinement: International Journal for Numerical Methods in Engineering, 75,
856–880 , doi:10.1002/nme.2318 .IJNMBH 0029-5981 CrossrefWeb of ScienceGoogle Scholar , - 2012, Time-lapse analysis of borehole and surface seismic data, and reservoir characterization of the Ketzin Storage Site, Germany. Acta Universitatis Upsaliensis: Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology.Google Scholar ,
- 2010, Moving source profile (MSP) data processing, modeling and comparison with 3D surface seismic data at the SINK project site, Ketzin, Germany: Near Surface Geophysics, 8,
601–610 .1569-4445 CrossrefWeb of ScienceGoogle Scholar , - 2009, 3D seismic reflection surveying at the SINK project site, Ketzin, Germany: A study for extracting shallow subsurface information: Near Surface Geophysics, 7,
75–91 .1569-4445 CrossrefWeb of ScienceGoogle Scholar , - 2012, Cross-well seismic waveform tomography for monitoring injection: A case study from the Ketzin Site, Germany: Geophysical Journal International, 189,
629–646 , doi:10.1111/j.1365-246X.2012.05375.x .GJINEA 0956-540X CrossrefWeb of ScienceGoogle Scholar , and SINK-Group 2011, The gas membrane sensor (GMS): A new method for gas measurements in deep boreholes applied at the SINK site: International Journal of Greenhouse Gas Control, 5, no. 4,995–1001 , doi:10.1016/j.ijggc.2010.11.007 .IJGGBW 1750-5836 CrossrefWeb of ScienceGoogle Scholar