Nigel Anstey Award

Best Paper Award for First Break
From 2012, the Nigel Anstey Award is to be presented to the author(s) of the best paper published in First Break in the calendar year preceding the award. The Anstey award will consist of a certificate and a specially bound copy of the issue in which the pertinent paper appears. This reallocation of the Anstey Award to a published paper continues the requirement that the contribution has a distinctly valuable and tangible bearing on one or more of the disciplines in our Association. Up until 2011, the Anstey Award was presented to a member of the Association who has made a contribution of distinctly valuable and tangible bearing on one or more of the disciplines in our Association, without being linked to a specific publication. The previous Award consisted of a medal and a certificate.

The Anstey Award 2019 was presented to:

Anders Draege

For the paper 'A new concept – fluid substitution by integrating rock physics and machine learning´, published in First Break, Vol 36, No 4, April 2018.

This paper presents a new and patented concept for fluid substitution that can be integrated with machine learning to provide robust and simple fluid substitution with accuracy approximately equal to or better than Gassmann theory. The method is called ‘ROck physics Fluid Substitution’ (ROFS); a stepwise workflow is provided. For high porosity rocks, where the Gassmann assumptions are met, ROFS gives very similar results. For intermediate to low porosity rocks, ROFS gives more realistic fluid effects. The method can be applied to both siliciclastic rocks and carbonates. By using a rock physics model for carbonates, the new method can account for the effect of microstructure variations such as pore shape variations and cracks when performing fluid substitution.


Past Winners of the Nigel Anstey Award

2018 Kim Senger 

And co-authors John Millett, Sverre Planke, Kei Ogata, Christian Haug Eide, Marte Festoy, Olivier Galland and Dougal A. Jerram
For their paper ‘Effects of igneous intrusions on the petroleum system: a review,’ published in First Break, vol 35, issue 6, June 2017, pp. 47 – 56.

In their excellent review paper, Senger and his co-authors give a global overview of the many types ofigneous intrusions, their geophysical signatures, and the numerous ways in which they can influence the entire petroleum system, including charge, migration, reservoir compartmentalization, trapping and sealing. All the individual petroleum system elements may be affected, positively or negatively, by igneous activity, as highlighted by case studies from different volcanic basins, conveniently brought together in a single table. The authors use both geological and geophysical concepts and provide a very well explained and well referenced overview to a general audience. 
2017  Ahmed Ouenes 

And co-authors Y. Kiche, L. Ouhib, R. Smaoui, M. Paryani, S. Poludasu, A. Bachir and D. Balogh
For their paper ´Efficient development of unconventional reservoirs using 3G workflows – Breaking the silos to achieve true integration with multi-disciplinary software´, published in First Break, volume 34, issue 5, May 2016, pp. 109-116.
Unconventional reservoirs challenge conventional workflows for characterisation and target selection since a sweetspot must not only have high hydrocarbon content but it must also enable high producibility. Producibility is enhanced by hydraulic fracture, so the third ‘g’ of geomechanics joins the existing two of geology and geophysics. Ahmed Ouenes and co-authors persuasively assert that their multi-disciplinary, integrated workflows can deliver significant savings over geometrically drilled completions. The authors demonstrate their approach on real case studies that bring together geology, geophysics and geomechanics, where stress and fracture modelling are integrated with seismic inversion-derived elastic properties and facies, to address the heterogeneity that challenges the economic development of unconventional reservoirs. The paper provides an excellent set of case-study examples and promotes practical aspects of geoscience applied to complex characterization and development projects.

2016  Andrew J. Cavanagh  And co-authors R. Stuart Haszeldine and Bamshad Nazarian
For their paper ´The Sleipner CO2 storage site: using a basin model to understand reservoir simulations of plume dynamics´, published in First Break, volume 33, issue 6, June 2015, pp. 61–68
The Sleipner carbon capture and storage project has two decades of data and experience of geological carbon storage (GCS). This important paper integrates geophysics, geology, petrophysics and flow simulation to obtain a new insight into the controls on CO2 movement in the subsurface and the best approach to model it. Under gravity-dominated drainage, Cavanagh et al. show that Darcy flow modelling, applied for the first decade of Sleipner monitoring, gives a poor match to the fluid distribution inferred from 4D seismic. Instead, they propose a capillary percolation model, better suited to the drainage displacement of the wetting brine by injected CO2, under near hydrostatic conditions. With this
model, a significantly better match is obtained to the interpreted plume dynamics. Furthermore, the new approach is better able to address CO2 dissolution and suggests that, within decades, dissolution will make a significant contribution to storage. This significant paper generates a new flow simulation benchmark and will guide our thinking on GCS for years to come.
2015  Gwilym J. Lynn 

And co-authors A. Christian Ellis, Jonathan Brain, Richard Parker, Gerd-Jan Lörtzer and Sophie Michelet
For their paper 'Gannet F field – Unexpected fluid flow between reservoirs identified from time-lapse seismic data', published in First Break, volume 32, issue 4, April 2014, pp. 53-59
In this comprehensive, well presented case study, the authors have integrated time-lapse (4D) seismic data with high-resolution inversions, well data and geological modelling to constrain both static and dynamic flow models in the Gannet F field. The 4D data have revealed unexpected fluid flow between reservoir units, and have observed sweep in units without well penetrations, thereby constraining fluid distributions in space at discrete snapshots in time. The integrated interpretation has improved predictions of sand extent and reservoir quality and has identified undeveloped crestal volumes in southern reservoir units as future targets.

2014  Mai Westphal Stephensen  And co-authors Michael Larsen, Gregers Dam and Tomas Hansen 
For their paper 'The Glenlivet gas discovery – an integrated exploration history', published in First Break, volume 31, issue 7, July 2013, pp. 51-63.
The authors present a comprehensive case study showing the importance of careful integration of geological, petrophysical and geophysical data to de-risk an amplitude-supported stratigraphic play on the Glenlivet Prospect. The initial prospect definition was based on regional seismic mapping and evaluation of existing data from offset wells. The detailed analysis included petrophysical interpretation, porosity modelling, fluid substitution, and AVO modelling. The results were compared with seismic and attribute maps of the Vaila Formation in the Glenlivet area. Based on the integrated evaluation, a combined geological and geophysical risking of the identified prospect was performed, leading to the successful exploration well in 2009. The authors reviewed the prognosed and post-well results and investigated reasons for the observed deviations. The successful case study is important in that it may lead to further development of the West of Shetland gas basin 
2013  Caroline E. Gill  And co-authors Alberto Miotto, Mariano Floricich, Richard Rogers, R. David Potter, Josef Harwijanto and Peter Townsley
For their paper ‘The Nelson full field model: using iterative quantitative improvements from the initial framework to the final history match’, published in First Break, volume 30, issue 9, September 2012, pp. 43–53.
The authors present a powerful methodology for building and updating constrained reservoir models. Their method incorporates various datatypes, including well data, 4D seismic surveys and production history, into reservoir models by updating structural framework, macrofacies and petrophysical properties, while managing all datatypes within an integrated workflow. The authors demonstrate their technique with a complex, channelized reservoir in the Nelson field in the UK North Sea, with implications for production optimization in many other depleting NW European fields. 
2012  Kurtis Wikel  For his paper ‘Geomechanics: Bridging the Gap from Geophysics to Engineering in Unconventional Reservoirs’, published in First Break, volume 29, issue 10, October 2011, pp. 71–81.
This paper argues that a geomechanics approach to tracking the stresses in the subsurface caused by drilling and hydraulic fracture operations in the production of unconventional tight gas and oil and gas shale reservoirs pays major dividends and should be more seriously considered in the geosciences community. The paper presents many topics of interest. Firstly, it is a very clear presentation of geomechanical concepts. This is excellent in the frame of a journal such as First Break, which will be read by people from very different technical horizons. Secondly, it discusses the impact of a geomechanical approach in the optimization of hydraulic fracturing in non-conventional reservoirs, which is also a very timely topic. And thirdly, it promotes a multidisciplinary approach, which is very topical for an EAGE publication. In all, a very good paper to introduce this recently redefined EAGE award.
2011 Ashley Francis  In recognition of his very substantial, original and diverse contribution to seismic inversion and geostatistics, and to the quantifying of uncertainty and risk. He has been a major influence for the widespread adoption of stochastic inversion technology in practical reservoir characterisation work. His extensive publications - especially his two papers in First Break - and lectures have helped considerably to publicise and also to demystify stochastic modelling, and to move it into the realm of an everyday tool in geological modelling. Thanks to the successful launch of his company Earthworks, he has successfully developed high speed stochastic inversion software to allow the rapid commercial application of the technique. Ashley Francis's other technical contributions, and his active participation in conferences define him as a geoscientist who has made a very major contribution to geoscience over more than two decades.
2010 Panos Kelamis In recognition of his research in the complex area of land multiple estimation and removal, which has resulted in an impressive series of model-based and data-driven algorithms currently widely applied within the E&P industry. His extensive knowledge of both the theoretical and practical aspects of geophysics, and his high-quality contributions to the geophysical community in terms of more than one hundred journal publications, conference papers and workshop presentations, has made him one of the authoritive experts in this field. In the specific spirit of the Anstey Award, Dr Kelamis has always given special attention in the integration of data acquisition, processing and interpretation, linking together geophysical data of different nature (seismic, well logs, upholes etc.).
2009    No candidate was selected for the award this year.
2008  Halina Jedrzejowska-Tyczkowska  For her valuable contribution to the science of seismology during her distinguished academic career. She has been responsible for tangible advances in the fields of full-field elastic wave propagation; seismic data processing and inversion; statistics in seismic interpretation; seismic anisotropy; spectral analysis; seismic stratigraphy and hydrocarbon reservoir characterisation. Her enthusiasm in teaching and research, together with her ability to combine theory with practice, has inspired geophysicists in Poland and throughout the world.
2007  José Carcione  In recognition of his contributions in research for seismic response of complex rheologies, resulting in his authorship of a landmark book in this subject area. As a proof of his broad and in-depth expertise José Carcione has also made significant contributions in modeling of georadar and aquifer responses.
2006  Eric Duveneck  In recognition of the importance and originality of his work in the tomographic determination of high-resolution seismic velocity models, using kinematic wavefield attributes extracted from pre-stack data. His approach has led to significant improvements in the efficiency and accuracy of three-dimensional migration and inversion.
2005  David Whitcombe In recognition of his significant contributions which have led to the development of practical and effective methods to solve everyday problems faced by seismic interpreters, including his innovative approaches to fast and accurate subsurface model building as well as his work in the use of seismic data for lithology and fluid prediction.
2004  Thomas Armstrong  For his significant and active contributions in a variety of seismic issues, such as migration aperture and VSP and particularly for providing an effective and long-awaited solution to the problem of overburden velocity anomalies. This latter work has filled a critical gap in seismic interpretation and in time to depth conversion, the worldwide application of the principles and methodology of which being already very much in evidence.
2003  Ian F. Jones  For his numerous and excellent contributions to many disciplines in seismic processing and, especially, for his innovative approach to methodologies in depth imaging and related processes, an approach that is often reflected in his publications and in his creative and stimulating presentations.