Conrad Schlumberger Award

Award for Outstanding Contribution
The Conrad Schlumberger Award is presented to a member of EAGE who has made an outstanding contribution over a period of time to the scientific and technical advancement of the geosciences, particularly geophysics. In exceptional circumstances, a maximum of two (2) Schlumberger Awards may be granted annually.

The Conrad Schlumberger Award consists of a medal and a certificate.


The Conrad Schlumberger Award 2020 was presented to:

André Revil

Dr Revil’s work focuses on the development of coupled hydraulic-electrical conductivity models in porous media and the fundamental understanding of grain surface electrical conduction phenomena. He is considered a leader both in the field of hydrogeophysics and the most recognized expert in the subject of electrical and electromagnetic properties of saturated rocks. Through experiments and theory, Dr. Revil has redefined the concepts of spontaneous potential and induced polarization as used by formation evaluation specialists and applied exploration geophysicists around the world, thus shaping the way we interpret electrical signatures for quantifying near-surface properties and dynamics. His contributions are both foundational and practical. He provided a mechanistic framework for linking electrical conductivity and permeability in both clean and shaly sands. Importantly, he also found that even totally clay-free rock formations exhibit an appreciable amount of surface conductivity for freshwater aquifers, a point that is often neglected in applications. He and his co-authors also considered seismoelectric sources through a unified, coupled model of hydromechanical and electromagnetic disturbances in porous media. Revil is also an active member of the Geosciences communities who provides excellent service to the professional community — he serves as editor and associate editor for several important refereed journal publications, helped organize a significant number of workshops and technical/scientific conferences on Geosciences frontier topics, and co-edited the text Applied Hydrogeophysics. His originality in experimental design and his infectious scientific curiosity are a source of inspiration to many in the community.


Past Winners of the Conrad Schlumberger Award

2019  Andrey Bakulin 

Andrey Bakulin is an outstanding geophysicist who has worked in many areas of geophysics and has been especially concerned with solving problems that impact data quality and efficiency. Following on from the work his father did to monitor stress in mines, he has applied the same rock physics to oil field problems on a larger scale to estimate 3D stress fields and fractures from seismic data. With Rodney Calvert he invented the Virtual Source concept and pioneered the new field of seismic interferometry. He developed a novel Distributed Acoustic Sensing (DAS) acquisition system using optical fibre in shallow vertical holes that can deliver data quality similar to geophones with an order of magnitude more channels in each well for a fraction of the cost. He has an impressive publication record, he is winner of SEG’s J Clarence Karcher Award (2005) and twice won the award for best paper presented at the SEG annual meeting (2006 and 2008). For his sustained and outstanding contributions to geophysics, the 2019 Conrad Schlumberger Award is given to Dr. Andrey Bakulin.


2018 Johan Robertsson

Johan Robertsson is an outstanding scientist who has demonstrated that he can develop ideas and take advanced theory to full industrial implementation at speed and at scale. He has over 80 peerreviewed articles and book chapters, 120 expanded conference papers, and holds close to 80 patents and patent applications (over 50 are granted in the US alone). His contributions have depth and breadth, many starting new directions of research, with some giving birth to new business opportunities for the oil and gas industry. Since 2012 Johan has been Professor of Applied Geophysics at the Swiss Federal Institute of Technology, ETH-Zürich. He obtained an MSc from Uppsala University, 1991, a PhD from Rice University, 1994, followed by two years as a postdoc at ETH-Zürich. In 1996 he joined Schlumberger where he spent 15 years in various R&D and management positions, including Research Director of Geophysics and Scientific Advisor at Schlumberger Gould Research, Cambridge. Part of his research led to Schlumberger’s largest R&D project ever, fundamentally changing the way marine seismic wavefields are sampled.
Johan has contributed key scientific and technological advances in fields ranging from wavefield modelling, signal processing and wavefield analysis, seismic interferometry, sampling theory and modern scientific immersive laboratory experimentation and, most recently, marine simultaneous source technology. In 2016 he launched Seismic Apparition GmbH, offering game-changing seismic data acquisition, processing and imaging solutions. Johan now leads about 30 researchers at ETH, including more than 6 postdocs and 15 PhD students. For his outstanding achievements, the rate of his high quality scientific research and innovation, his mentoring spirit and its evident industrial impact, EAGE is delighted to present Johan Robertsson with the 2018 Conrad Schlumberger Award.

2018  Philip Christie  Phil Christie is a geophysicist with a rare and impressively broad understanding of both geology and geophysics. His widely-disseminated research has had a lasting impact on sedimentary basin subsidence analysis and reservoir science. Phil has had an outstanding career in Schlumberger since 1972, with a break for PhD and post-doctoral research at Cambridge, 1975-1980, and secondment to BP Exploration, Aberdeen, 1996-97. Since 2000 Phil has been Scientific Advisor at Schlumberger Cambridge Research. Underlying many of his major achievements are his innovations in instrumentation, data acquisition and data processing and his collaboration with academia. Among his numerous achievements we mention three. His 1980 JGR paper with John Sclater on the mid-Cretaceous subsidence of the North Sea become a standard reference for basin modelling studies with almost 2000 citations. Phil jointly coordinated the BP-Shell-Schlumberger time-lapse seismic project in BP’s Foinaven field, which quantified the repeatability of seismic data from both towed streamer and the first working seabed array, demonstrating the ability to monitor fluid flow and pressure changes in the reservoir following production. After the 2004 Sumatra earthquake and tsunami, Phil helped design and implement a deep seismic experiment offshore Sumatra, which for the first time allowed the subducting plate to be imaged down to 50 km depth, leading to 5 PhDs and 15 papers in peer-reviewed international journals. For his outstanding ability to enhance the understanding of earth properties through scientific research and innovative geoscience technologies, his exceptional expertise in geophysics, reservoir science and geology, his advisory and leadership role in the scientific community and his lasting impact on the understanding of petroleum systems, EAGE is delighted to present the 2018 Conrad Schlumberger Award to Phil Christie.


Carlos Torres-Verdín  Carlos Torres-Verdín has made outstanding contributions to borehole geophysics, formation evaluation, petrophysics, rock physics and well-logging during a distinguished career in academia, and in both the operator and service sectors of industry. Graduating in geophysical engineering in Mexico in 1983, Carlos won perfect grade-point averages in magnetotellurics at UT Austin for his MSc and at UC Berkeley for his PhD. Following research at Lawrence Berkeley and Schlumberger-Doll Research, and a spell as technology champion for YPF in Buenos Aires, he returned to UTA in 1999 at the Department of Petroleum and Geosystems Engineering, where he holds two named professorships. Transferred to paper, Carlos’ CV and publication list would cover the walls of a small conference room, authoring over 160 peer-reviewed articles and 200 conference papers. He has made fundamental contributions across theoretical and applied electromagnetics, and in the acquisition, modelling, processing, interpretation and inversion of a range of borehole data including electromagnetic, dielectric, nuclear, sonic and magnetic resonance measurements. His work has had significant impact on multi-physics inversion and interpretation of data logged in horizontal wells, including the interpretation of time-lapse and radial variations of borehole geophysical measurements to estimate permeability, capillary pressure and relative permeability of porous rocks. Carlos teaches courses on well logging, formation evaluation, reservoir characterization, nonlinear optimisation, inverse theory and programming. He has supervised 28 PhD and 41 MSc students and directs the UTA Consortium on Formation Evaluation, which he founded in 2000. Carlos has contributed enormously to several associations and journals, and in 2014 became an Associate Editor of EAGE’s Geociencias Aplicadas Latinoamericana. He has published in Geophysical ProspectingFirst Break, and at the annual conference. No stranger to honours, EAGE confers one of two Conrad Schlumberger Awards for 2017 to Prof. Carlos Torres-Verdín. 
2017  José Carcione 

José Carcione is Research Director of the Italian National Institute for Oceanography and Applied Geophysics (INOGS) in Trieste, Italy, which testifies to the strength of his research understanding and career achievements in both electromagnetics and elastodynamics. After a first degree in physics from Buenos Aires University in 1978, and doctorates both from Milan (physics) and from Tel Aviv (geophysics), José’s career took him to the Comisión Nacional de Energía Atómica in Buenos Aires and to YPF, Argentina’s national oil company. Following von Humboldt-funded research at Hamburg, he moved to INOGS and has developed research collaborations across the globe.
José’s research interests lie in acoustic and electromagnetic wave propagation applied to rock acoustics, geophysical exploration, environmental geophysics, seismology, and non-destructive testing of materials. He has published more than 240 journal articles on acoustic and electromagnetic numerical modelling, with applications to oil exploration and environmental geophysics. A major research topic has been attenuation mechanisms in rocks, where he introduced the widely used memory-variable approach of simulating attenuation, and modelled both P- and S-wave attenuations in anisotropic media. He was the first to simulate numerically the Biot slow wave, observed experimentally by Plona in 1980. José has also developed relations between P-wave velocity and electrical conductivity which underpin the joint inversion of seismic and electromagnetic data for characterising transport phenomena in porous media. With new theories for borehole stability and the elastic properties of CO2-saturated rocks, José has impacted geophysics for carbon sequestration, COmonitoring and cap rock integrity. Dr Carcione has some 75 publications in Geophysical ProspectingNear Surface GeophysicsFirst Break and at annual conferences. He is an EAGE course instructor in Rock Physics and Computational Geophysics and his work has previously been recognised with a Cagniard best poster award, and an Anstey Award for best paper in First Break. EAGE has no hesitation in offering Dr José Carcione one of two Conrad Schlumberger Awards for 2017.

2016  Stewart Greenhalgh 

Stewart Greenhalgh is Emeritus Professor of Physics at the University of Adelaide and Professor at the Institute of Geophysics at ETH. In a career that has spanned three continents and has achieved the unlikely combination of both a DSc for outstanding published research and an explosives certificate from the Railways Institute of New South Wales, Stewart’s research has been distinguished by its innovation, depth, and breadth. He has authored numerous influential papers on theoretical, computational, and applied aspects of environmental, engineering, exploration, and whole-earth geophysics. Recognised by the Mintrop award in 2012, Stewart’s focus is not only on pushing back the frontiers but also on helping young researchers at all levels and on collaborating with others. His collaborations have benefited both cross-disciplinary academic research and a large number of companies with whom he has served in various consulting capacities. Stewart has made significant contributions in numerical modelling of wave propagation in anisotropic media, physical scale modelling, seismic data processing and filtering, multi-component polarisation, tomography, migration, waveform inversion, vertical seismic profiling, in-seam seismology, high-resolution seismic for coal exploration and mine optimisation, microseismic monitoring, crustal and upper mantle studies, earthquake seismology and seismic risk. He has also ventured into electrical resistivity instrumentation, modelling and imaging, ground-penetrating radar, electromagnetic induction, and magnetic resonance imaging. With such an enormous range of scientific contributions, it is difficult to select one topic area as being pre-eminent but it is a sign of his continuing contributions that his current work on poro-elasticity and anisotropy in both seismology and electrical resistivity is considered to be some of his best. For his sustained contributions to geophysics in both academic and industrial communities over a lifetime of research and teaching, the 2016 Conrad Schlumberger Award is given to Professor Stewart Greenhalgh.

2015  Alain Tabbagh 

Alain Tabbagh is Emeritus Professor of Applied Geophysics at the Université Pierre et Marie Curie, where his distinguished scientific career encompasses both fundamental rigour and practical developments. His research has impacted environmental geophysics and hydrogeophysics, hydrogeology, soil science, archaeology and civil engineering, with significant breakthroughs in surficial geothermal analysis, electrical and electromagnetic (EM) methods. Alain has developed new sensors for in-situ measurement of soil thermal properties and new finite-element models of the thermal response of bodies. He established the heat-exchange conditions at the soil surface favourable for remote thermal surveying and demonstrated the interpretation of near-surface contrasts in thermal inertia. Alain identified the impact of vertical water fluxes on soil temperature profiles and used such observations to interpret meteoric infiltration and recharge. In electromagnetics, Alain noted that the simultaneous estimation of soil conductivity and magnetic susceptibility was enabled by the Slingram antennae configuration. Together with 3D modelling of both conductivity and magnetic susceptibility contrasts from DC to medium- and high-frequency EM, his novel mapping and modelling methods have become pervasive in both archaeology and agriculture. In geoelectrics, Alain has inspired the development of multi-depth resistivity profiling systems and associated 3D interpretation. He proposed the use of non-galvanic, capacitively-coupled arrays and established their optimal parameters. A prototype capacitively-coupled system was field-tested in the streets of Montreal and several commercial systems are now available. Prof. Tabbagh has given selfless service to the near-surface community: he has supervised some 40 PhD students, published over 130 articles and book chapters, and chaired the 2012 Near Surface Geoscience conference in Paris. He has been a director of two laboratories and is an associate editor for several journals. For his sustained contributions to science and the community over a lifetime of active teaching and research, we confer the Conrad Schlumberger Award to Prof. Alain Tabbagh.

2014  Valentina Socco  Dr Valentina Socco received her MSc and PhD in Civil and Environmental Geo-Engineering at the Politecnico di Torino, where she now conducts both her research and teaching. As a teacher in the Petroleum Engineering Department, she has supervised 40 masters' and 5 doctoral theses and is now vice-director of the Doctorate School. As a researcher, she is head of the Laboratory of Applied Geophysics, at the Department of Environment, Territory and Infrastructures, where she leads or coordinates national and international projects with world-class research partners. Valentina's research focus is the theory and application of integrated geophysical techniques to characterise the near-surface, addressing problems in resource exploration, geotechnical and environmental engineering, and the preservation of cultural heritage. She has made original contributions to spectral analysis of seismic surface waves, and inversion for near-surface properties by integrating data from surface waves, body waves, resistivity and electromagnetics with a priori information. Valentina is widely recognized, not only from her 32 peer-reviewed papers and 66 other publications on applied geophysics, but also through her invited lectures at many universities, international schools, workshops and conferences. Her conviction that excellence in science is also about sharing is demonstrated by her outstanding commitment to the near-surface community: as a supporter of the EAGE Near Surface Division, as Associate Editor of Geophysics and Near Surface Geophysics, as reviewer for many international journals, as a member of the Research Committee, and as a convenor of EAGE conferences and workshops for more than a decade. This award recognises the outstanding contributions that Valentina has made over more than 20 years to near-surface geophysics, her commitment to serve and share with the near-surface community, and her contributions to the Association.
2013  Kees Wapenaar  From 1986 to 1999, Professor Kees Wapenaar was a project leader of the highly renowned Delphi consortium in the Department of Applied Physics at Delft University. In 1999, he became Antoni van Leeuwenhoek Professor in the Department of Geotechnology and has headed the Applied Geophysics and Petrophysics Section from 2002. Since 1986, he has co-supervised 30 PhD and 75 MSc students. Prof. Wapenaar made an outstanding contribution to geophysics by giving seismic interferometry a strong theoretical foundation, enabling research for applications in exploration seismology. This award recognises Prof. Wapenaar’s extensive theoretical work on interferometric methods in multi-dimensional acoustic and elastic imaging, and on the practical implementation of this theory, to retrieve subsurface reflection responses from ambient noise recordings. Successful field tests have been conducted together with Shell. Prof. Wapenaar has actively communicated his interferometry research to the widest possible audience, delivering an EAGE distinguished lecture on the topic. He has been a driving force behind several workshops, sharing ideas and connecting different disciplines. For his extensive contributions to geophysics, his novel ideas, and his mentoring spirit we are pleased to confer upon Professor Kees Wapenaar the Schlumberger Award for 2013.
2012  Martin Landrø  In recognition of his extensive contributions to geophysics, his continuous pursuit of novel ideas and his educational and mentoring spirit. Martin Landrø has carried out pioneering work on the subject of 4D seismics with original contributions to time-lapse seismic, rock physics, four-component seismic, marine seismic acquisition, analysis of controlled-source electromagnetic data and novel gravimetric methods for monitoring purposes. He also has contributions in the area of seismic inversion specifically in connecting the theoretical model to observations in practice. In addition, Martin has led an outstanding consortium that produces wonderful science with the support of industry and with the objective of educating future scientists.
2011  Sergey Fomel  In recognition of his pioneering work on the subjects of seismic imaging with developments in angle gathers, azimuth moveout correction, velocity independent processing, and velocity continuation. He also contributed to advancements in reservoir description and characterization by developing methods for extracting local attributes from seismic data and characterizing their structural features using plane wave destructors. In addition Sergey has developed open-source seismic processing software, referred to as Madagascar, used currently at many Universities for research and teaching purposes. 
2010  Lasse Amundsen  In recognition of his very extensive and innovative contributions to geophysics and his endless interest in novel ideas. Lasse Amundsen has carried out major pioneering work on the subjects of data acquisition and signal analysis that included advancements in wavelet estimation and deghosting, multiple attenuation, Sea-bed logging and ocean-bottom-cable (OBC) many of which ended up adopted by leading service companies and contractors. His specific contributions to OBC have helped improve data acquired using this relatively new and growing method. In addition Lasse has coauthored a book on Petroleum Seismology that is widely used as a reference and in the classroom of many Universities.
2009  Gerhard Pratt  Gerhard Pratt has made a considerable contribution to full wave-form inversion , producing key reference papers on cross-well tomography and diving wave tomography. A significant characteristic of Gerhard’s work is his combined experience and expertise in both data processing and inversion and his skill in conditioning real data for inversion. This award is given not only for his excellent and impressive results but also because he is partly responsible for the current revival of interest in waveform inversion in the industry.
2008  Clive McCann  In recognition of his leadership in the Rock Physics research group at the University of Reading for almost 20 years, focused to explore and understand seismic wave propagation mechanisms in the earth. His laboratory evolved into a unique set of equipment for the measurement of P- and S-wave velocity and attenuation as well as for measuring petrophysical properties, a topic where he may fairly be regarded as the outstanding authority. His fundamental research into seismic wave attenuation is bearing fruit for practical applications in the oil and gas industry, as improved seismic acquisition methods offer new ways to exploit attenuation phenomena for exploration and production monitoring.
2007  Colin Macbeth  In recognition of his prolific research and practical contributions in applied seismic anisotropy to determine fracture properties in hydrocarbon reservoirs, and in the analysis of multi-component and mode-converted arrivals in Vertical Seismic Profiling and conventional seismic data both in land and marine environments for reservoir characterization. Colin Macbeth’s recent contributions are related to the application and understanding 4D time-lapse seismic signals and associated rock physics while spearheading the Edinburgh Time-Lapse Project, in which he was able to attract and mentor numerous researchers and students to the benefit of both ETLP and the wider research community.
2006  Petar Stavrev  In recognition of his highly innovative and far-reaching contributions in potential field theory over a long period of time and especially in the last ten years. His theoretical work on "Differential Similarity transform" has led to wide practical applications in the interpretation of gravity and magnetic data.
2005  Horst Rüter  For his important contributions in applied seismology over a wide range of subjects that included in-seam methodologies, propagation in cyclic layer media, engineering geophysics, acquisition geometries in refraction and reflection methods, geothermal applications of seismics as well as advanced instrumentation for seismic, electromagnetic, core and borehole applications.
2004  Eric de Bazelaire  In recognition of his innovative and highly significant work on normal moveout problems through optical principles (which currently provides a very effective basis for applications in high density high resolution velocity analysis, in pre-stack time migrations and in velocity-independent imaging methods), for his important contributions in the subject of propagation 'artefacts' and in the analysis of multiple reflections as well as in several other key seismic issues.
2003  Tariq Alkalifah  For his highly significant contributions over the past decade and, particularly, for his elegant insight into details of seismic anisotropy which established well-defined principles in seismic processing and led to a considerable enhancement in data quality, for his originality in thought and for his indomitable spirit.
2002  M. Tygel  For his many contributions to unify the theory of seismic true-amplitude reflection imaging.
2001* R. Marschall  For his innovative and ingenious contributions to seismic exploration, his dedication to the development of new methods, including the first saltdome undershooting and 4D seismic, and his outstanding leadership in the geophysical community.

* As from June 2001, all award titles will refer to the year in which they are presented to the winners, and no longer to the year in which the winning poster/paper was presented.
1999  P. Weidelt  For his fundamental contributions to EM induction phenomena.
1998  V. Cerveny In recognition of his many contributions to asymptotic wave theory and its applications to seismic modelling.
1997  J.T. Fokkema  In recognition of his contributions to the applications of mathematics and reciprocity to geophysical problems.
1996  M.A. Schoenberg  In recognition of his important contribution to seismic anisotropy, including the
investigation of transversely isotropic media. His work leads to a precise determination of faults and fractures, and to a better discrimination of lithology. 
1995  P. Lailly  In recognition of his important contribution to the processing of seismic data, including prestack inversion and seimic imaging of complex geological structures, and for the elaboration of sythetic data sets such as the Marmousi model, which have been largely used by geophysicists for the test of processing softwares.
1994  P. Newman  For his many contributions to 2D and 3D seismic reflection methods, and in recognition of his fundamental and pioneering work on true-amplitude processing and 3D migration of seismic data. 
1993  B. Ursin  In recognition of his significant and sustained contribution to exploration
geophysics, including many papers on seismic acquisition, processing and interpretation, and for his services to the geophysical community.
1992  L. Dresen  In recognition of his sustained contributions to theoretical and practical interpretation of geophysical data, and in particular for his work on surface wave and channel wave propagation applied to environmental and mining geophysics.
1991  Ö. Yilmaz  In recognition of his sustained contributions to the theory and practice of seismic data processing which, whether in research, tutorial or book, are consistently penetrating and stimulating.
1990  F. Rocca  In recognition of his wide-ranging and innovative contributions to geophysical data
analysis and signal processing. His research has consistently been at the forefront of advances in signal enhancement, deconvolution and migration.
1989  A. Tarantola  In recognition of his significant contributions to the general theory of linear and non-linear inversion and its application to geophysical data.
1987 L. Hatton  In recognition of his sustained contributions, which have been both informative and entertaining, on computer sciences for the geophysicist, and his analysis of seismic migration techniques.
1986  S. Crampin In recognition of his sustained research efforts over many years, both in earthquake and exploration geophysics, into shearwave bi-refringence in cracked and anisotropic rocks, resulting in the phenomenon of extensive-dilatancy anisotropy.
1984  K. Helbig  In recognition of his contribution to geophysics generally, and in particular for his work on seismic wave propagation in anisotropic media.
1985  S.M. Deregowski 

In recognition of his contribution to understanding of prestack migration and behaviour of acoustic diffractors.

1983  J. Sattlegger 

Whilst Dr Sattlegger has been a frequent and always interesting speaker at meetings of our Association, this award is bestowed particularly in recognition of his sustained contribution to our understanding of seismic velocities through modelling and ray tracing, and their effects on 2- and 3-dimensional migration.

1982  A. Ziolkowski  Whilst he has been a frequent and always interesting speaker at meetings of our Association, this award is bestowed particularly in recognition of his sustained
contribution to our understanding and control of seismic sources. Dr Ziolkowski's many stimulating publications on this important fundamental subject are well reasoned, clearly presented, and always structured in a truly scientific manner.
1981  W.E. Lerwill  In recognition of his innovative work in the furtherance of the Vibroseis method of
seismic exploration.
1980 A.J. Berkhout  In recognition of a series of important contributions to seismic processing theory, particularly with relation to understanding and improving the resolution potential of the seismic reflection method in both time and space. His more recent publications concerning seismic migration are especially meritorious in placing various acoustic imaging methods in context, examining the nature and influence of errors that are involved, and pointing to the spatial resolution limits of existing schemes.
1979  Th. Krey  In recognition of his many important publications in Geophysical Prospecting dealing with reflection seismics as well as with refraction seismics.
1977  P. Hubral  In recognition of his sustained contributions in furtherance of our understanding of seismic reflection phenomena, notably through ray theory concepts. His many lucid publications in Geophysical Prospecting have always addressed a significant and topical theme and have generally stressed the 3-dimensional nature of seismic objectives, a feature that is currently attracting considerable attention as the means for 3-dimensional field investigations are developed.
1976  J.G. Hagedoorn  In recognition of his paper 'A process of Seismic Reflection Interpretation', published in Geophysical Prospecting Vol. II (1954), June. This paper has formed the basis of migration techniques, which have been generally and beneficially employed for many years. It is a standard reference in the geophysical literature, and in its clarity and authority it furnishes a paragon of good scientific communication.
1975  M.M. Backus  And co-author R.L. Chen
In recognition of their paper 'Flat Spot Exploration', published in Geophysical Prospecting Vol. XXIII (1975), September. This paper introduces novel and useful concepts in interpretation and display of seismic data with the straightforward aim of direct hydrocarbon detection.
1974  N. de Voogd  In recognition of his paper 'Wavelet Shaping and Noise Reduction'. This method aims at shaping of the wavelet while at the same time reducing the noise. It may have a powerful impact on future design and use of deconvolution techniques especially in seismic processing.
1973  R.E. White  In recognition of his paper 'The Estimation of Signal Spectra and related Quantities by means of the Multiple Coherence Function', published in Geophysical Prospecting Vol. XXI (1973), December, pp. 660/703.
1972  P. Bois  In recognition of his paper 'Analyse Sequentielle' published in Geophysical Prospecting Vol. XX (1972), September, pp. 497/513 and also to honour the former high quality contributions of the author.
1971  P.N.S. O'Brien  In recognition of his sustained contribution to the science of geophysical exploration. He has written a series of papers based on exact observation and precise reasoning which has advanced our understanding of seismic arrivals.
1970  H. Naudy  In appreciation of succession of clearly written papers, mainly devoted to the interpretation of gravimetric and magnetic data.
1969  S. Treitel  And co-author E. Robinson
In recognition of their sustained contribution to the science of geophysical exploration, 'Optimum Digital Filters for Signal to Noise Ratio Enhancement', published in Geophysical Prospecting Vol. XVII (1969), September, pp. 248/293.
1968  H. Linsser  'Investigations of Tectonics by Gravity Detailing', published in Geophysical Prospecting Vol. XV (1967), September, pp. 480/515 and 'Transformation of Magnetometric Data into Tectonic Maps by Digital Template Analysis', published in Vol. XVI (1968), June, pp. 179/207.
1967  R. Garotta  And co-author D. Michon
'Continuous Analysis of the Velocity and of the Moveout Corrections', published in Geophysical Prospecting Vol. XV (1967), December, pp. 584/597.
1966  J. D'Hoeraene  'Filtrage Spatio Temporel des Courbures', published in Geophysical Prospecting Vol. XIV (1966), March, pp. 27/44.
1965  O. Koefoed  In appreciation of the outstanding contribution he has made to applied geophysics, both to seismic prospecting and to the electrical resistivity method.
1964  N. Anstey  His publications cover a wide range of subjects and include the discussion of problems in operational technique, instrument characteristics and data processing.
1963  G. Grau  For his work on computation of synthetic seismograms (1960), seismic trace statistics (1961), geophone-to-ground coupling (1962) and on filtering problems (fan and deconvolution, 1963).
1961  G. Kunetz  'Essai d'Analyse de Traces Sismiques', published in Geophysical Prospecting Vol. IX (1961), September, pp. 317/341.
1960  R. Bortfeld  'Seismic Waves in Transition Layers' (and two other papers and contributions to two other papers), published in Geophysical Prospecting Vol. VIII (1960), June, pp. 179/217.
1959  L. Alfano  'Introduction to the Interpretation of Resistivity Measurements for Complicated Structural Conditions', published in Geophysical Prospecting Vol. VII (1959), September, pp. 311/366.
1958  U. Colombo  'Differential Electric Log', published in Geophysical Prospecting Vol. VII (1959), June, pp.91/118.
1957  O. Kappelmeyer  'The Use of Near Surface Temperature Measurements for Discovering Anomalies due to Causes at Depth', published in Geophysical Prospecting Vol. V (1957), September, pp.239/258.
1955  H. Flathe  'A Practical Method of Calculating Geoelectrical Model Graphs for Horizontally Stratified Media', published in Geophysical Prospecting Vol. III (1955), June, pp. 268/294.