Competences of this group are the promotion, development and management of innovative projects of geophysical research, including drilling monitoring methods. The research activity of GEOP is focused on borehole geophysics, wavefield propagation, passive geophysical methods, seismic interferometry, acoustics, drilling diagnostics, in particular to methodological methods to obtain, in cooperation with industry, geophysical information by the drill-bit seismic source while drilling (seismic while drilling SWD - Seisbit), in oil and gas and geothermal wells, and tunneling. The activity includes the development of new data processing algorithms, procedures and codes, the industrialization of the data processing codes, the design and the development of acquisition systems and borehole instrumentation tools for the scopes of the research and demonstrative services. GEOP supervises and manages the Piana di Toppo (PN) OGS borehole geophysical-drilling instrumented test site.
TEAM
Cinzia Bellezza, Giovanni Cappelli, Piero Corubolo, Aronne Craglietto, Gino Cristofano, Biancamaria Farina, Paolo Ghidini, Massimo Lovo, Stefano Maffione, Fabio Meneghini, Valerio Pasciullo, Marco Peronio, Giorgia Pinna, Flavio Poletto (coordinator), Andrea Schleifer, Franco Zgauc
For more personal information see the links at page bottom
SUMMARY OF MAIN ACTIVITIES
- Borehole geophysics and acoustics
- CO2 capture and storage
- Data acquisition and processing
- Dual signal analysis, drilling vibrations and seismic
- Geosteering borehole measurements
- Geothermal research
- Instrumental development and testing
- Laboratory (acoustics and acquisition systems)
- Near- and far-field analysis by ground force
- Near surface methods, study of surface waves by on shore dual sensors
- Numerical modeling, including borehole, geothermal, and code development
- Scientific and technical supervision of the Borehole Test site Piana di Toppo
- Seismic interferometry, including borehole and flexural ice waves
- Seismic while drilling and drilling vibration analysis
- Source emission analysis by ground force
- VSP and crosshole
- Tunnel Seismic While Drilling (TSWD)
- Wavefield analysis, including seismic interferometry innovative approaches
SUMMARY OF PROJECT TOPICS
(industry and institutional projects)
- CO2monitor
- Downhole tool development and testing
- Geothermal Grado
- Geosteering
- Ground-force acquisition
- Moonbit - SWD on the moon (Lab test) ESA project
- Nevada geothermal SWD
- Seimic interferometry to mitigate Arctic flexural ice noise
- PITOP Test-site acoustic experiments
- SWD projects
- VSP
INTERNATIONAL AWARDS
- Honorable Mention of the Society of Exploration Geophysicists in the selection of the Best Paper in Geophysics (2001), for the paper: Poletto, F., Rocca, F., and Bertelli, L., 2000, Drill-bit signal separation for RVSP using statistical independence: Geophysics 65, 1654-1659.
- Honorable Mention of the Society of Exploration Geophysicists in the selection of the Best Paper in Geophysics (2003), for the paper “Poletto, F., and Dordolo, G., A new approach to offshore drill-bit RVSP: Geophysics, Vol. 67, 2002.
- Best Paper Award from ASCE (American Society of Civil Engineers) Earth and Space 2010 Conference, for a laboratory testing on SWD in Lunar environment (MOONBIT Project, P. Coste, R. Gelmi, P. Magnani, F. Poletto, A. Schleifer, A. Perrone, A. Salonicco, E. Re, D. Jollet, I. Marson and P. Corubolo).
- Legends of SWD Award, presented to Flavio Poletto. The 2013 SEG/SPE Workshop on Seismic While Drilling, 1-3 May 2013. Galveston, Texas
List of Publications
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Titolo/autore |
Anno |
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Tangent-Phase Interferometry, Time Lapse Application and Sensitivity Analysis |
2013 |
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Diffraction analysis by tangent-phase interferometry Poletto F., Farina B. and Böhm G. 83st International Meeting, SEG, Expanded Abstract |
2013 |
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Flexural waves in drill‐string tubulars with variable loads |
2013 |
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Drill-Bit Seismic While Drilling by Downhole Wired Pipe Telemetry |
2013 |
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Seismic Rheological Model and Reflection Coefficients of the Brittle–Ductile Transition |
2013 |
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TUNNEL SEISMIC WHILE DRILLING SIGNAL PROCESSING AND ACQUISITION METHOD |
2013 |
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Analysis and separation of surface and body waves in onshore-seismic dual fields |
2013 |
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Virtual reflector multidimensional deconvolution: inversion issues for convolutive-type interferometry |
2013 |
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Reservoir characterization for the completion of the geothermal district heating system in Grado (NE Italy) |
2013 |
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Multi-offset VSP for the integrated geophysical characterization of the Grado (NE Italy) carbonatic reservoir |
2013 |
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Drillbit SWD for geothermal exploration Poletto F, Corubolo P, Schleifer A, Farina B SEG/SPE Workshop – SWD: ‘Managing risk and optimizing well placement’ , Galveston (TX) |
2013 |
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Simulation of flexural waves in drill pipes including the effects of the gravitational field: Flexural waves and effects of gravity |
2012 |
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Multidimensional deconvolution of seismic-interferometry Arctic data |
2012 |
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Seismic acquisition and processing of onshore dual fields by a reciprocal experiment |
2012 |
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Virtual signals combination–phase analysis for 2D and 3D data representation (acoustic medium) |
2012 |
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Interferometry Deconvolution by Virtual Reflector (VR)-A Comparison of Approaches |
2012 |
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Seismic Interferometry Using a Generalized-phase Approach |
2012 |
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Measuring device for a drilling apparatus |
2011 |
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While-drilling and Post-drilling Analysis of Drill-bit Seismic Signals of a Geothermal-well Survey |
2011 |
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Borehole signals obtained using surface seismic sources and ground-force sensors |
2011 |
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TUNNEL SEISMIC WHILE DRILLING SIGNAL PROCESSING AND ACQUISITION METHOD |
2011 |
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Kerogen to oil conversion in source rocks. Pore-pressure build-up and effects on seismic velocities |
2011 |
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SVD and Seismic Interferometry for Attenuation of Ice-sheet Flexural Waves |
2011 |
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Seismic interferometry experiment in a shallow cased borehole using a seismic vibrator source‡ |
2011 |
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Seismic interferometry application to improve seismic reflection signals affected by ice-plate flexural noise |
2011 |
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Seismic while drilling for geophysical exploration in geothermal wells |
2011 |
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Drill-bit SWD and seismic interferometry for imaging around geothermal wells |
2011 |
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METHOD FOR DETECTING AND/OR PROCESSING SEISMIC SIGNALS |
2010 |
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Synthesis and composition of virtual-reflector (VR) signals |
2010 |
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Dual signals separation in shallow borehole hydrophone data |
2010 |
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Kirchhoff–Helmholtz Representation for Interferometry and Virtual Reflectors in Acoustic Media |
2010 |
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Synthesis of a seismic virtual reflector* |
2010 |
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‘MOONBIT’‐Seismic While Drilling (SWD) Laboratory Testing with Lunar Regolith Simulant |
2010 |
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Drill‐bit seismic interferometry with and without pilot signals* |
2010 |
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Analysis of stationary condition for Virtual Reflection signals |
2009 |
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Green’s Function Representation of Virtual Reflectors (VR) |
2009 |
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Analysis of spurious events in the synthesis of virtual seismic signals |
2009 |
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Virtual reflector representation theorem (acoustic medium) |
2009 |
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METHOD FOR DETECTING AND/OR PROCESSING SEISMIC SIGNALS |
2009 |
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Simulation of axis-symmetric seismic waves in fluid-filled boreholes in the presence of a drill string |
2008 |
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Drill Bit As a Seismic Source For Near-well Imaging |
2008 |
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Seismic Virtual Reflector-Synthesis And Composition of Virtual Wavefields |
2008 |
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Drillbit seismic interferometry with and without pilot signals Poletto F, Corubolo P, Comelli P 70th EAGE Conference & Exhibition - Extended Abstracts |
2008 |
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The drill bit as a source of seismic vibrations: performance and seismic results |
2008 |
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Synthetic logs of multipole sources in boreholes based on the Kelvin–Voigt stress–strain relation |
2008 |
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Single well imaging in cased borehole by interferometry |
2008 |
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Synthesis of a virtual reflector by processing recorded seismic signals |
2008 |
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Simulation of propagation modes in boreholes with drill strings |
2007 |
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Process for improving the bit seismic signal using drilling parameters |
2007 |
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Seismic interferometry in a crosshole-RVSP experiment |
2007 |
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Application Of The Reverse Vertical Seismic Profile – Seismic While Drilling Method In Space Mission Poletto F, Marson I, Corubolo P, Magnani P, Re E, Manca M, Ronchini R ILEWG 9th International Conference on Exploration and Utilization of the Moon, ICEUM9/ILC2007 Abstracts |
2007 |
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Interface prediction ahead of the excavation front by the tunnel-seismic-while-drilling (TSWD) method |
2007 |
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Pressure estimation by using amplitude of SWD drill bit data |
2006 |
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Drill-bit displacement-source model: Source performance and drilling parameters |
2006 |
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Seismic interferometry with a TBM source of transmitted and reflected waves |
2006 |
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Joint use of transmitted and reflected waves in tunnel SWD |
2006 |
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Coupled Axial Waves in Drill Strings |
2005 |
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Energy balance of a drill-bit seismic source, part 1: Rotary energy and radiation properties |
2005 |
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Energy balance of a drill-bit seismic source, part 2: Drill-bit versus conventional seismic sources |
2005 |
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Seismic-while-drilling by using dual sensors in drill strings |
2004 |
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Seismic while drilling: Fundamentals of drill-bit seismic for exploration |
2004 |
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3-D wave simulation in anelastic media using the Kelvin–Voigt constitutive equation |
2004 |
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Prediction and 3D imaging while drilling by drill-bit 3D RVSP |
2004 |
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SWD Using Rig-pilot Arrays |
2003 |
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SWD Using Lateral Vibrations of PDC Bits |
2003 |
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Seisbit® Seismic-while-Drilling Technique–Summary of Results Obtained in Onshore Surveys |
2003 |
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Propagation of extensional and torsional waves in a real drill string |
2003 |
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Electric drill-string telemetry |
2003 |
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Geology prediction ahead of the excavation front by Tunnel-Seismic-While-Drilling (TSWD) method |
2003 |
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Prediction and 3D imaging while drilling by drill-bit 3D RVSP 65th EAGE Conference and Exhibition |
2003 |
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Seismic-while-drilling by using tunnel boring machine noise |
2002 |
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A new approach to offshore drill-bit reverse vertical seismic profiling (RVSP) |
2002 |
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Prediction ahead of the bit by using drill-bit pilot signals and reverse vertical seismic profiling (RVSP) |
2002 |
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Reflection of drill-string extensional waves at the bit-rock contact |
2002 |
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Numerical Simulation of Drillstring Waves for Geosteering Application |
2002 |
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A SWD 3D RVSP Onshore Survey-Imaging and Final Results |
2002 |
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Acoustic velocity of seismic-while-drilling (SWD) borehole guided waves |
2002 |
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A telegrapher equation for electric-telemetering in drill strings |
2002 |
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Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Borgo Grotta Gigante 42C, 34010 Sgonico (TS), Italy |
2002 |
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First results of the Seisbit® 3D RVSP project |
2002 |
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P015 A SWD 3D RVSP ONSHORE SURVEY-IMAGING AND FINAL RESULTS |
2002 |
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Use of dual waves for the elimination of reverberations in drill strings |
2002 |
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Seismic while drilling by using dual drill-string pilot waves |
2001 |
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Numerical modeling and interpretation of drillstring waves |
2001 |
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Joint 3D inversion of SWD and surface seismic data |
2001 |
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Seismic-wave modelling of a 3D SWD survey |
2001 |
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3D RVSP Drill-Bit Survey-Preliminary Results |
2001 |
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SWD tomography by radial staggered grids at geothermal well Accaino, F., Batini, F., Corubolo, P., Petronio, L., Rossi, G. & Vesnaver, A EAGE, Extended Abstract |
2001 |
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A 3D elastic modelling code for seismic wave propagation and 3D SWD surveys |
2001 |
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On the group velocity of guided waves in drill strings |
2001 |
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Drill-bit signal separation for RVSP using statistical independence |
2000 |
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Acoustic velocity of drilling mud and SWD borehole guided waves |
2000 |
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Reflection of drill-bit extensional waves at the bit-rock interface |
2000 |
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A blind interpretation of drill-bit signals |
2000 |
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Sound velocity of drilling mud saturated with reservoir gas |
2000 |
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Simulation of stress waves in attenuating drill strings, including piezoelectric sources and sensors |
2000 |
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UTILIZZO DEL RUMORE GENERATO DA UNA TBM (TUNNEL BORING MACHINE) COME SORGENTE DI PROSPEZIONE SISMICA" WHILE DRILLING": RISULTATI PRELIMINARI |
1999 |
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Process and device for detecting seismic signals |
1999 |
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Prediction Ahead of the Bit by Using Drill Bit Big Pilot Seismograms and Reverse VSP |
1999 |
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SWD surface and downhole pilot recording to improve PDC bit signals |
1999 |
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Optimization of receiver pattern in seismic-while-drilling |
1999 |
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Seismic while-drilling technology: use and analysis of the drill-bit seismic source in a cross-hole survey |
1999 |
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Seismic while drilling use of pilot signals with downhole motor drilling |
1998 |
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Impact of the seismic while drilling technique on exploration wells Miranda, F., Aleotti, L., Abramo, F., Poletto, F., Craglietto, A., Persoglia, S., and Rocca, F. First Break, vol. 14, n. 2 |
1996 |
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SEISBIT – Latest applications of seismic while drilling technology Aleotti, L., Miranda, F., Abramo, F., Poletto, F., Craglietto, A., and Corubolo P 57th EAEG/EAPG meeting, Extended abstracts, paper B19 |
1995 |
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