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Book chapterPiggott MD, Pain CC, Gorman GJ, 2008,
Unstructured adaptive meshes for ocean modeling
, Ocean modeling in an eddying regime, Editors: Hecht, Hasumi, Hecht, Hasumi, Publisher: Amer Geophysical Union, Pages: 383-408, ISBN: 9780875904429 -
Journal articlevan Reeuwijk M, Jonker HJJ, Hanjalic K, 2008,
Wind and boundary layers in Rayleigh-Benard convection. I. Analysis and modeling
, PHYS REV E, Vol: 77 -
Journal articleCrowley H, Bommer JJ, Stafford PJ, 2008,
Recent developments in the treatment of ground-motion variability in earthquake loss models
, Journal of Earthquake Engineering, Vol: 12, Pages: 71-80, ISSN: 1363-2469 -
Journal articleStafford PJ, 2008,
Conditional Prediction of Absolute Durations
, Bulletin of the Seismological Society of America, Vol: 98, Pages: 1588-1594 -
Journal articleCrowley H, Stafford PJ, Bommer JJ, 2008,
Can earthquake loss models be validated using field observations?
, Journal of Earthquake Engineering, Vol: 12, Pages: 1078-1104 -
Journal articleVerdoold J, van Reeuwijk M, Tummers MJ, et al., 2008,
Spectral analysis of boundary layers in Rayleigh-Benard convection
, PHYS REV E, Vol: 77 -
Journal articleKontoe S, Zdravkovic L, Potts DM, 2008,
The Domain Reduction Method for dynamic coupled consolidation problems in geotechnical engineering
, International Journal for Numerical and Analytical Methods in Geomechanics, Vol: 32, Pages: 659-680 -
Journal articlesaunders J, jackson M, pain C, 2008,
Fluid flow monitoring in oilfields using downhole measurements of electrokinetic potential
, Geophysics, Vol: 73, Pages: E165-E180Downhole measurements of electrokinetic potential are a promising new technology for hydrocarbon reservoir monitoring. Using a 3Dfinite-element model combining both multiphase flow and electrokinetic components, we investigated the behavior of electrokinetic (streaming) potential during oil production in a range of reservoir environments. We found that streaming-potential signals originate at fluid fronts and at geologic boundaries where fluid saturation changes. As water encroaches on an oil production well, the streaming-potential signal associated with the water front encompasses the well even when the front is up to 100 m away, so the potential measured at the well starts to change significantly relative to a distant reference electrode. Variations in the geometry of the encroaching water front can be characterized using an array of electrodes positioned along the well, but a good understanding of the local reservoir geology is required to identify signals caused by the front. The streaming potential measured at a well is maximized in low-permeability reservoirs produced at a high rate and in thick reservoirs with low shale content. However, considerable uncertainties remain, particularly relating to the nature of electrokinetic coupling at high salinity and during multiphase flow. Our results suggest that the streaming potential at low salinity (10^-3–10^-4 mol/L) is large (100–1000 mV) but might become too small to resolve (<0.1) mV at high salinity (0.5–2 mol/L), depending on how the available data for the electrokinetic coupling at low salinity are extrapolated into the high-salinity domain. More work remains to determine the behavior of electrokinetic coupling and therefore the utility of this technique at high salinity.
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Conference papervan Reeuwijk M, Mathias SA, Simmons CT, et al., 2008,
Improving the worthiness of the Elder problem as a benchmark for buoyancy driven convection models
, Virtual Conference on Climate Change and CO2 Storage, Publisher: Nature Precedings -
Journal articlevan Reeuwijk M, Jonker HJJ, Hanjalic K, 2008,
Wind and boundary layers in Rayleigh-Benard convection. II. Boundary layer character and scaling
, PHYS REV E, Vol: 77 -
Journal articleSargeant SL, Stafford PJ, Lawley R, et al., 2008,
Observations from the Folkestone, U.K., earthquake of 28 April 2007
, Seismological Research Letters, Vol: 79, Pages: 672-687 -
Conference paperAddiego-Guevara EA, Jackson MD, Giddens MA, 2008,
Insurance value of intelligent well technology against reservoir uncertainty
, SPE/DOE Improved Oil Recovery Symposium -
Journal articleStafford PJ, Strasser FO, Bommer JJ, 2008,
An evaluation of the applicability of the NGA models to ground-motion prediction in the Euro-Mediterranean region
, Bulletin of Earthquake Engineering, Vol: 6, Pages: 149-177, ISSN: 1570-761XThe first phase of the Next Generation Attenuation (NGA) project has now finished, resulting in the publication of five new sets of empirical ground-motion models for PGA, PGV and response spectral ordinates. These models mark a significant advancement in the state-of-the-art in empirical ground-motion modelling and include many effects that are not accounted for in existing European equations. Under the assumption that the Euro-Mediterranean database from which the European relationships are derived is unlikely to drastically change in the near future, a prudent question to ask is: can the NGA models be applied in Europe? In order to answer this question, the NGA model of Boore and Atkinson (PEER Report 2007/01, Pacific Earthquake Engineering Research Center, Berkeley, CA, 234 pp., 2007), which is shown to be representative of the NGA models as a suite, is compared with the dataset used for the development of the most recent European empirical ground-motion models for response spectral ordinates and peak ground velocity. The comparisons are made using analyses of model residuals and the likelihood approach of Scherbaum et al. (Bull Seism Soc Am 94(6):2164–2185, 2004). The analyses indicate that for most engineering applications, and particularly for displacement-based approaches to seismic design, the NGA models may confidently be applied within Europe. Furthermore, it is recommended that they be used in conjunction with existing European models to provide constraint on finite-fault effects and non-linear site response within logic-tree frameworks. The findings also point to the potential benefits of merging the NGA and European datasets.
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Journal articleRushmer T, Jackson MD, 2008,
Impact of melt segregation on tonalite–trondhjemite–granodiorite (TTG) petrogenesis
, Trans. Royal Society of Edinburgh: Earth Science, Vol: 79, Pages: 325-336 -
Conference paperZdravkovic L, Kontoe S, 2008,
Some issues in modelling boundary conditions in dynamic geotechnical analysis
, 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Pages: 2918-2925 -
Conference paperMálaga-Chuquitaype C, Bommer JJ, Pinho R, et al., 2008,
Selection and scaling of ground-motion records for nonlinear response-history analyses based on equivalent SDOF systems
, 14th World Conference on Earthquake Engineering -
Conference paperStrasser FO, Stafford PJ, Bommer JJ, et al., 2008,
State-of-the-art of European earthquake loss estimation software
, 14th World Conference on Earthquake Engineering -
Journal articleBurberry CM, Cosgrove JW, Liu JG, 2008,
Spatial arrangement of fold types in the Zagros Simply Folded Belt, Iran, indicated by landform morphology and drainage pattern characteristics
, JOURNAL OF MAPS, Vol: 4, Pages: 417-430, ISSN: 1744-5647- Author Web Link
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Journal articleHancock J, Bommer JJ, Stafford PJ, 2008,
Numbers of scaled and matched accelerograms required for inelastic dynamic analyses
, Earthquake Engineering and Structural Dynamics, Vol: 37, Pages: 1585-1607, ISSN: 0098-8847 -
Conference paperKontoe S, Zdravkovic L, Potts DM, 2008,
The importance of revised modulus decay curves on surface foundation settlement predictions in London Clay
, BGA International Conference on Foundations, Pages: 1549-1558
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