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Proceedings Papers

Paper presented at the Petroleum Computer Conference, June 2–5, 1996
Paper Number: SPE-36012-MS
... of these browsers made it a breeze to navigate (surf) the Web. Nowadays, almost every company, university, and organization has an appearance on the Web. However, it is important to note that up until today, most of these Web pages are relatively static information published and updated regularly or irregularly...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3593347
... of are stored, and is computed on-demand by inexpensive dot products and vector sums. © 2021 Society of Exploration Geophysicists 10.1190/segam2021-3593347.1 First International Meeting for Applied Geoscience & Energy Page 688 FWI using ADAQN optimization Examples Figure 2. Image mean squared error at epoch...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17795188
... International Exposition and 87th Annual Meeting Page 4376 configuration of the linearized Bregman method remains the same as the small scale problem so the only difference is the scale. In Figure 4 we see that the relative model error for the original linearized Bregman method stagnates again, this time...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5912838
... solution. The direct solution (Weglein et al., 2003, 2009) provides a solid framework and firm math-physics foundation for the data requirement and algorithms to solve the problem that you are interested. There are many other issues that contribute to the gap in FWI today, e.g., the need for broadband data...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175003-MS
... 21, page 264 #16 Hydraulically Fractured Well k , C , s Horne (1995) , Test 15, page 236 #17 Dual Porosity k , C , s , ω, λ Horne (1995) , Test 14, page 234 Figure 1 Histograms of OLS residuals (frequency v/s psi-error) for all field datasets For an accurate...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13607443
... : Tectonophysics , 289 , 117 – 128 , 10.1016/S0040-1951(97)00311-9 . Terzaghi , K. Van , 1923 , Die Berechnung der Durchassigkeitsziffer des Tones aus dem Verlauf der hydrodynamischen Spannungserscheinungen, Sitzungsber . Akad. Wiss. Wien Math Naturwiss. Kl. Abt. 2A, 132, 105...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583345
... method, it injects noise into the Introduction decomposition algorithm to solve the problem of mode mixing. Adding all the IMFs does not perfectly recreate the The analysis of instantaneous frequency attribute of seismic original signal, although the reconstruction error decreases signal by Hilbert...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-1418
... Summary Various types of imaging inversion are of significant benefit for extracting subtle information from seismic data. But the methods are can produce significant errors in some situations. We present several examples of imaging inversion imperfections that illuminate how one must...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5877991
.... We ap- ply the goal-oriented error estimation method as described to SEG New Orleans Annual Meeting Page 807 DOI httpdx.doi.org/10.1190/segam2015-5877991.1© 2015 SEG 3D marine CSEM modeling produce the local error indicator hK for each element. Then we identify the fraction g of elements...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-121135-STU
.... Magenes, editors, Mathematical Aspects of the Finite Element Method, volume 606 of Lecture Notes in Mathematics, pages 292 315, New York, 1977. Springer-Verlag. [18] J. C. Ne´de´lec. Mixed finite elements in R3. Numer. Math., 35:315 341, 1980. [19] F. Brezzi, J. Douglas, Jr., R. Duran, and M. Fortin...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426921
... that forms the Wiener lter. We perform a trace by trace deconvolution to es- foundation of data-dependent linear least square error lters timate the re ectivity pro le and the convolution wavelet. The in many areas. The coef cients of a Wiener lter seeks to paper also presents the results of the proposed...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173087-MS
... together in critical situations has traditionally been quite difficult. Detailed requirements are scattered throughout thousands of pages of dozens of different specifications. Accurate manual tracking of these requirements is extremely difficult. This paper reports on the application of Model-Based...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5838205
... and 41390454, the Major Re- search Plan of the National Natural Science Foundation of Chi- na under grant No. 91330204, and Beijing Center for Math- ematics and Information Interdisciplinary Science (BCMIIS) for their financial support. SEG New Orleans Annual Meeting Page 1300 DOI httpdx.doi.org/10.1190...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2659996-MS
... is given by = + 1 , (6) URTeC 2659996 Page 5 where b and , = 1,2, are parameters decided by the training procedure that solves an optimization problem that minimizes the error between the predictions and the real data for = 1,2, plus a regularization term (see appendix A); is a kernel function...
Proceedings Papers

Paper presented at the Petroleum Computer Conference, June 25–28, 1990
Paper Number: SPE-20356-MS
... pressures are never less than atmospheric pressure and are always less that 20.000 psig. If more restrictive ranges are required (perhaps by the specific correlations) then these restrictive ranges should be used. If no out of range values are permitted in the input, then math errors will be less likely...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0629
... 2012 Annual Meeting Page 1 Main Menu Resolution and uncertainty analysis of OVSP acquisition scenarios mLL j jj j j j dL , (3) where fNj 1 . The system (3) plays the central role in our study. After equation (3) is constructed for the fixed acquisition scenario, SVD...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427414
....2019.02.004. Wilkinson, J. H., 1963, Rounding errors in algebraic processes: Prentice-Halls. © 2020 Society of Exploration Geophysicists 10.1190/segam2020-3427414.1 SEG International Exposition and 90th Annual Meeting Page 2688 2020. Society of Exploration Geophysicists ...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216622
... of American Math Society., 1 , 253 – 304 . Chadan , K. , and P. C. Sabatier , 1989 , Inverse problems in quantum scattering theory , 2nd ed. : Springer-Verlag . Rose , J. H. , 2002 , Single-sided autofocusing of sound in layered materials : Inverse Problems, 18 , 1923 – 1934...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13845786
... This work was supported by the Consortium Project on Seis- mic Inverse Methods for Complex Structures at the Center for Wave Phenomena (CWP). We are grateful to Antoine Guitton, Esteban D ´az Pantin, Vladimir Li and, especially, Nishant Ka- math (all from CWP) for helpful discussions. Page 297© 2016 SEG SEG...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426030
... Page 2151 Semi-supervised facies classification more separated. The objective function becomes a APPLICATION summation of within-classes distances and violation of We applied the semi-supervised algorithm to classify constraints according to the transformation matrices as lithofacies in the Glitne...

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