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- Volume 30, Issue 5, 2012
First Break - Volume 30, Issue 5, 2012
Volume 30, Issue 5, 2012
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Rock physics modelling and simultaneous inversion for heavy oil reservoirs: a case study in western India
Authors S.K. Basha, Anup Kumar, J.K. Borgohain, Ranjit Shaw, Mukesh Gupta and Surender SinghS.K. Basha, Anup Kumar, J.K. Borgohain, Ranjit Shaw, Mukesh Gupta and Surender Singh explain how the search for heavy oil in the Baghewala area, western India was progressed using rock physics modelling and simultaneous inversion.
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Seismic imaging of thrust faults and structural damage: a visualization workflow for deepwater thrust belts
Authors D. Iacopini, R.W.H. Butler and S. PurvesD. Iacopini, R.W.H. Butler and S. Purves describe powerful analytical but simple-to-apply workflows for delineation of structural deformation in compressional folds imaged in 3D seismic volumes.
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Joint inversion of multi-component seismic data for reservoir characterization of an offshore Campos Basin field, Brazil
By Nier RibeiroNier Ribeiro illustrates how inversion of multi-component seismic data can significantly improve turbidite sandstone reservoir characterization in the Campos Basin offshore Brazil.
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Seismic reservoir characterization of distributary channel sandstones in the Lower Cretaceous Paluxy reservoir, Delhi Field, Louisiana
Authors Holly Robinson and Tom DavisHolly Robinson and Tom Davis1 describe a spectral decomposition method that improves the understanding of the Paluxy deposition in the Delhi Field, which may influence the sweep efficiency of the tertiary enhanced oil recovery programme.
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Time-lapse AVO analysis for reservoir monitoring of Paluxy formation, Delhi Field, Louisiana
More LessIhsan Ramdani presents a case study on how time-lapse AVO analysis can interpret CO2 migration flow as well as the zone of oil saturation.
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A dual representation of multiscale fracture network modelling: application to a giant UAE carbonate field
Authors L. Souche, D. Astratti, V. Aarre, N. Clerc, A. Clark, T. Nasser Ali Al Dayyni and S. Lotfy MahmoudThe network of faults and fracture corridors assumed to act as preferential fluid pathways between reservoir units in a Type III Lower Cretaceous reservoir in Abu Dhabi is evident on 3D seismic data, but its elements are too numerous to be efficiently picked by hand. Alternative modelling techniques with increased levels of complexity and accuracy were tested for incorporation into the 3D model: deterministic fault patches, geobodies, and multipoint statistics, the latter to correct for the difference in corridor location observed between seismic and well data. Seismic and matrix properties guided the modelled distribution of unit-bound fractures outside the corridors. The new dual-scale approach to fracture network modelling applied in this study uses discrete fracture networks to represent the large fractures that provide connectivity between the grid cells, and describes statistically, with an implicit fracture model, the small fractures that probably enhance matrix permeability and anisotropy. A model comprising only discrete fractures would have taken hours to run, and the smallest fractures would have been neglected for computational limitations; whereas creation and upscaling of the hybrid model was performed in few minutes, enabling future implementation of iterative workflows for more rigorous statistics and calibration of intermediate and final results.
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GORE® Surveys for Exploration “Amplified Geochemical ImagingSM” Services — A Direct HydrocarbonIndicator Method & Results of a Demonstration of Capabilities in Abu Dhabi
Authors Mark J. Wrigley, Mahfoud Al Jenaibi, Pierre van Laer and Holger StolpmannDown hole geophysics, and 2D and 3D seismic imaging, are some of the tools most often used by petroleum explorationists to find and exploit our hydrocarbon resources. Unfortunately, no single technology or tool has the current capability to answer all of the questions posed by exploration professional; each tool offers its own unique view into the subsurface and, when used together in a complementary fashion, help build a more complete picture of the petroleum system and/or the reservoir.
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The application and value of AVO and spectral decomposition for derisking Palaeogene prospects in the UK North Sea
More LessPerhaps over a billion barrels of oil, distributed over dozens of mostly small prospects, remain trapped in Palaeogene reservoirs in the UK sector of the North Sea Basin. Here we consider whether traditional amplitude versus offset (AVO) analysis, augmented by spectral decomposition, can provide a useful tool in helping to evaluate which of these prospects are worthwhile targets for drilling. In recent years, exploration drilling in the Palaeogene play fairway of the UK Northern North Sea has had mixed results. Eighty percent of wells drilled since 2000 have failed to encounter hydrocarbons, for reasons that include poor interpretation and evaluation of prospects, lack of AVO analysis, and positioning of wells on poor quality seismic data. Our analysis suggests that AVO analysis and spectral decomposition can be very useful and powerful tools for predicting the presence or absence of hydrocarbons in undrilled Palaeogene prospects in the North Sea. However, the validity of the results depends upon the availability of good quality seismic data with broad frequency content that have been acquired with cable lengths greater than 3 km.
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Volumes & issues
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Volume 42 (2024)
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Volume 41 (2023)
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Volume 40 (2022)
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Volume 39 (2021)
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Volume 38 (2020)
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Volume 37 (2019)
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Volume 36 (2018)
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Volume 35 (2017)
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Volume 34 (2016)
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Volume 33 (2015)
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Volume 32 (2014)
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Volume 31 (2013)
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Volume 30 (2012)
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Volume 29 (2011)
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Volume 28 (2010)
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Volume 27 (2009)
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Volume 26 (2008)
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Volume 25 (2007)
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Volume 24 (2006)
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Volume 23 (2005)
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Volume 22 (2004)
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Volume 21 (2003)
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Volume 20 (2002)
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Volume 19 (2001)
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Volume 18 (2000)
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Volume 17 (1999)
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Volume 16 (1998)
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Volume 15 (1997)
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Volume 14 (1996)
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Volume 13 (1995)
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Volume 12 (1994)
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Volume 11 (1993)
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Volume 10 (1992)
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Volume 9 (1991)
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Volume 8 (1990)
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Volume 7 (1989)
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Volume 6 (1988)
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Volume 5 (1987)
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Volume 4 (1986)
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Volume 3 (1985)
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Volume 2 (1984)
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Volume 1 (1983)