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- Volume 27, Issue 7, 2009
First Break - Volume 27, Issue 7, 2009
Volume 27, Issue 7, 2009
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Real time and continuous reservoir monitoring using microseismicity recorded in a live well
Authors K.G. Maver, A.-S. Boivineau, U. Rinck, L. Barzaghi and F. FerulanoKim Gunn Maver, Ann-Sophie Boivineau, Uwe Rinck, Lorenzo Barzaghi and Flora Ferulano describe a downhole tool able to record microseismicity for reservoir monitoring.
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Integrating real-time drilling information into the geological model
More LessHugues Thevoux-Chabuel explores various approaches to improving the geological model of a reservoir through more effective integration of real time drilling data.
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LWD acoustic measurement enhancements for varying drilling conditions
Authors J.G. Moore, V. Dubinsky and C. HarrisonAccurate acoustic measurements performed while drilling present additional challenges compared with wireline logging. To address these drilling-related issues John Moore,Vladimir Dubinsky and Charles Harrison propose and evaluate new approaches to data processing as a contribution to the solution.
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Pore-scale modelling based on microscopic analysis of drill cuttings
By S. StörerSimone Störer reviews the range of pore-scale modelling techniques available to establish the petrophysical and transport properties of subsurface strata from microscopic investigation of drill cuttings.
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Advances in long-range GPR systems and their applications to mineral exploration, geotechnical and static correction problems
Authors J. Francke and V. UtsiJan Francke and Vincent Utsi provide an overview of developments in GPR with the emphasis on the potential for acquiring data from deeper targets thanks to the penetration range possible deploying the latest technology.
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Application of full tensor gradient invariants in detection of intrusion-hosted sulphide mineralization: implications for deposition mechanisms
Authors J. Mataragio and J. KieleyJames Mataragio and John Kieley describe how an airborne gravity gradiometry exploration survey provided details over a massive sulphide mineral mining prospect in Newfoundland, Canada.
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Deep exploration technologies for discovery in the shadow of headframes
Authors G. Hollyer and R. HearstGreg Hollyer and Rob Hearst provide some examples of how DAS technologies can provide successful deep exploration for the mining environment revealing additional economically recoverable resources.
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Microtremor spectra: a proven means for estimating resonant frequencies and S-wave velocities of shallow soils/sediments, but a questionable tool for locating hydrocarbon reservoirs
Authors A. Green and S. GreenhalghOver the past five years, established techniques for estimating the resonant frequencies and S‑wave velocities of shallow soil/sediment layers using microtremor spectra in the 1–10 Hz frequency range have been implicitly challenged by members of an industry-university consortium who claim that these same spectra can be used to map the detailed locations, depths, and thicknesses of hydrocarbon-rich sediments. But recently published spectral attributes based on 1–10 Hz microtremor recordings and associated analyses suggest that any microtremor signals originating from relatively deep hydrocarbon reservoirs are likely to be overwhelmed by surface-waves and other seismic energy travelling through the near-surface soil/sediment layers.
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Tutorial: Time conversion of depth migrated data
By I.F. JonesMany data processing and interpretation procedures are performed on time domain data. If such procedures are to be applied after a depth imaging project has been conducted, it is necessary to convert the data to the time domain from the depth domain. Although there will be a velocity-depth model available that was used for the depth migration, in this tutorial note I show why it is inappropriate to use the depth migration velocity model for depth-to-time conversion if additional processing is to be performed on the prestack data in the time domain. The situation is less clear-cut if the objective is to compare the time-converted depth image to checkshot or interval times. It should be noted that time conversion of depth migrated data is subtly different from depth conversion of time migrated data. For time migration, the velocity field is inherently smooth: this is not the case for depth migrated data, and as I show in this tutorial, this lack of smoothness is the issue.
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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)