1-20 of 36724 Search Results for

Static corrections, statics

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0686
...Cross-correlation time-lapse static corrections versus refraction static corrections on 4D land seismic CO2 monitoring at Ketzin, Germany Peter Bergmann*, GFZ German Research Centre for Geosciences, Artem Kashubin, Schlumberger Cambridge Research, Monika Ivandic and Christopher Juhlin, Uppsala...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17585227
... ABSTRACT We present a method to correct for intra-array statics and phase variations pre-stack trace ensembles intended for local summation. We apply the proposed approach as an additional step before summing traces via supergouping. Corrections are derived from beamforming techniques applied...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426918
... Most short-wavelength statics-correction methods are based on the surface-consistency assumption depending on locations of sources and receivers at the surface. Even though this assumption may work in practice, it is not the most accurate solution since raypaths in the near-surface are not...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17325-MS
.... This was achieved by applying first-arrival travel time tomography to obtain the shallow velocity information needed to calculate refraction statics corrections. Refraction statics tomography uses the first break travel time picks of the seismic data to derive a velocity model of the near surface. This...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, November 7–10, 2000
Paper Number: SPE-64741-MS
... Abstract In view of large residual static correction values after field static correction in complex areas, the field near-surface data and field static correction data are used as the initial condition of the method. The first break time is used for the basic constrain of the method. The...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997135
... JARR method was successful at providing accurate static corrections to enhance reflections in the data. Presentation Date: Wednesday, October 17, 2018 Start Time: 1:50:00 PM Location: Poster Station 6 Presentation Type: Poster ivanov a-priori information velocity model refraction...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2986560
... ABSTRACT Near-surface velocity models for static corrections are usually derived from critically-refracted arrivals. In the processing of P-to-S converted-wave data, critically-refracted S-waves are difficult to identify since they are usually overwhelmed by the surface-wave train which...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17632009
... complex environments compel us to look for ways to overcome these assumptions as they are violated. Using the depth migration velocity model, we apply an offset dependent traveltime summation as the moveout correction for reflection static calculations in depth imaging. Presentation Date: Wednesday...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1988
Paper Number: OTC-5755-MS
... ABSTRACT Near surface statics are a major problem in modern delta fill areas such as the Mississippi. The necessary travel time corrections can be determined by manual techniques, refraction analysis, and modeling of the Holocene sediments. Sediment characteristics from direct measurements are...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13962619
.... , and P. Sava , 2015 , Scalar imaging condition for elastic reverse time migration : Geophysics , 80 , no. 4 , S127 – S136 , 10.1190/geo2014-0453.1 . McMechan , G. A. , and H. W. Chen , 1990 , Implicit static corrections in prestack migration of common-source...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5830865
... sufficient to support the vertical ray-path assumption conventionally used for computation of static corrections. Cova et al. (2014) showed that even if the velocity contrast at the base of the near surface is large, the presence of dip on this interface may cause raypath-dependent delays that may differ...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-1406
... correction tomography upstream oil & gas joint application short wavelength static reservoir characterization multi-domain iteration static residual static correction wavelength static seg houston 2009 static correction international exposition static problem high frequency...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5906814
... Summary A method for receiver statics correction of converted waves ( PS -waves) is proposed here. It is based on the observation that the static time delay on PS -wave events between two adjacent receivers, after the source statics correction has been applied, should correspond mostly to...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-1078
... SUMMARY For the last 30 years, co-located transient EM soundings have been the preferred method for correcting apparent MT static shift. We show that this combination can produce fallacious results, and that, with modern broad-band MT instrumentation, complete modeling of the topography is...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0003
... geophysics seismic line reservoir characterization multiple layer model layer model inversion saudi arabia government bridle static correction saudi aramco static solution shallowest layer annual international meeting seg houston 2013 upstream oil & gas initial multiple layer...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-4010
... contractor (top) using flexible binning as their path to increase S/N and continuity of reflections, while the second contractor (bottom) used regular binning and utilized cross-spreads and offset-vector tiling as well as iterative and continuous statics and velocity corrections with signal processing in...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0016
... Building a multiple layer model for near-surface static corrections AbdulAziz Al-Saad*, Ralph Bridle, Saudi Aramco, Dhahran, Asad A. Ali and Mohammad Waseem Akhtar, BGP, Dhahran Summary The first 100 m of near-surface geology may be very complex and challenging to model for static corrections. The...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1897
... Summary Irregularities in thickness and velocity of near-surface layers may adversely affect seismic reflection images. Static corrections, calculated from near-surface velocity models, are used to remove the effects of the variable near surface. In this paper near-surface layers are...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-2827
... calculation tomographic static correction method travel time convergence reservoir characterization tomographic inversion static correction time difference parallel irregular grid tomographic static correction grid velocity layer tomographic method near-surface velocity structure...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1861
...Hybrid raypath interferometry: correcting converted wave receiver statics David C. Henley* CREWES, Dept. of Geoscience, Univ. of Calgary Summary A technique termed hybrid raypath interferometry , for removing near-surface effects from seismic data, is used to remove converted wave receiver statics...

Product(s) added to cart

Close Modal