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Salt flanks

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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 2003
Paper Number: SPE-84574-MS
... Abstract This paper presents the results from a study on uncertainty analysis for mapping salt flanks with a salt proximity (SP) data set acquired in the Gulf of Mexico, where petroleum reserves are often trapped underneath overhangs of diapiric salt domes. Determination of the precise...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1032
... Summary Imaging of steeply-dipping or overturned salt-flanks is still a challenge for the conventional migration techniques applied to surface seismic data. In the past, walkaway Vertical Seismic Profiling (VSP) data has proven to add value in mapping or imaging the steep salt-boundaries...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-2265
... on the accuracy improvement of the wave back propagation from the receiver array. The proposed method can model turning waves well and consequently can be employed in imaging overhanging salt flanks. Numerical tests demonstrated the validity of the method. Introduction Although quite a few methods have been...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-0570
...MIG 6.3 On accurate imaging of steep salt flanks David Kessler*, Luis Canales, and Chung-Chi Shih, CogniSeis Development, Peter Duncan, 3DX Technologies Summary The accurate imaging of steep flanks of salt domes has long been a challenging problem for exploration geophysicists. The problem...
Proceedings Papers

Paper presented at the 1994 SEG Annual Meeting, October 23–28, 1994
Paper Number: SEG-1994-0765
... ABSTRACT No preview is available for this paper. traveltime flank image two-dimensional model study first-arrival time reservoir characterization aplanatic mapping mapping indentation ray-tracing method indentation aplanatic surface overhang receiver salt flank exxon...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-3054
... ABSTRACT We describe a new short cut strategy to image the sediments and salt edge around a salt flank through an overburden salt canopy. We demonstrate its performance and capabilities on a synthetic acoustic seismic data from a Gulf of Mexico (GOM) style model. In this strategy, we first...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-2436
... dome flank. Computational simulations of these data are currently being conducted in order to understand the various geological and geophysical factors that influence the timing, strength, character, and even existence, of salt flank reflections. Introduction Near-vertical geologic interfaces...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1200
... Summary The issue of properly locating the salt flank is one of the primary targets for the characterization of sub-salt reservoirs in O&G exploration and drilling. With appropriate illumination conditions, seismic interferometry by borehole seismic data recorded in the proximity...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0414
... Summary In this paper, we present a new reverse time migration method for imaging salt flanks with prism wave reflections. It consists of four steps: (1) migrating the seismic data with conventional RTM to give the RTM image; (2) using the RTM image as a reflectivity model to simulate source...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0596
... Summary We have simulated a salt flank hydrocarbon reservoir imaging case using the 3D controlled source electromagnetic data from the SEAM phase I model. The complication due to the dominant EM response from the salt body is tackled by a structural constraint. In our simulated exploration...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-0484
... ABSTRACT Salt flanks are structures that are difficult to image using surface seismic data. Imaging salt flanks is important, as accurate placement of the salt will improve the (subsalt) seismic imaging. To image these steeply-dipping structures we use borehole seismic sensors in a well bore...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-4129
... ABSTRACT A 3D wave-equation migration algorithm has been developed to image salt flanks with transmitted arrival VSP data. A precise knowledge of the salt flank location is often essential for accurate resource estimates and optimal well planning. The traditional salt-proximity survey provides...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-3049
... ABSTRACT We examine some practical respects of interferometric imaging and application to VSP imaging of salt flanks. We find that standard methods for interferometric imaging based on the crosscorrelation methods result in low resolution images. In addition, the direction of the arrivals also...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2372
... coordinate plane-wave source media steeply plane-wave migration wave equation salt body salt flank reservoir characterization internat cartesian coordinate migration reflector upstream oil & gas dataset biondi Imaging steep salt ank with plane-wave migration in tilted coordinates...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-3497
... ABSTRACT In areas dominated by complex salt structures, a well designed offset VSP can be used to image the flanks of salt structures close to a nearby borehole. The offset VSP has advantages over the conventional refraction salt proximity survey in areas where the surrounding sediment...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-3492
... ABSTRACT Interferometry is used to directly image a salt flank using walkaway VSP data. With this application surface sources are redatumed to the receiver array creating a series of common source gathers, one for every receiver. In the case of a vertical well near a salt flank we end up...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-2029
... ABSTRACT We present the method of PS interferometric imaging () for delineating the flank of a salt dome from VSP data. Unlike traditional migration methods, interferometric PS imaging does not require the migration velocity model of the salt or upper sediments in order to image the salt flank...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-1368
... Summary An ongoing, preliminary study of salt flank illumination using data from Vinton Dome, Louisiana is described. This study is part of a larger, Department of Energy (DOE) funded project carried out by the Allied Geophysical Laboratories (AGL) at the University of Houston in conjunction...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-1328
... Summary We present comparisons of Kirchhoff and wavefield extrapolation imaging of near-salt-flank and subsalt areas in the Gulf of Mexico where Kirchhoff migration has strong artifacts. In these areas, wavefield extrapolation imaging shows improvements in imaging of near-salt-flank...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-2345
...1 km Locating the salt flank using borehole seismic techniques John O Brien*, Brian Mallick, James Lakings, Anadarko Petroleum Corporation, and Celine Barberan, Baker Atlas. Introduction While PreStack Depth Migration is a powerful technique for imaging the Base of Salt and the underlying...

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