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Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 7–9, 2009
Paper Number: IPTC-13740-ABSTRACT
... analysis. SPE 65205, 2000. H. Griethe and H. Schumann. The visualization of uncertain data: Methods and problems. Proceedings of SimVis 2006, SCS Publishing House, pages 143–156, 2006. C. Johnson and A. Sanderson. A next step: Visualizing errors and uncertainty. Computer Graphics and Applications, IEEE...
Journal Articles
Trans. 216 (01): 49–54.
Paper Number: SPE-1112-G
Published: 01 December 1959
...Robert E. Cook Published in Petroleum Transactions, AIME, Volume 216, 1959, pages 49–54. Abstract This paper presents results of a study to determine to what extent errors in estimated free gas saturation affect the results of static pressure calculations from build-up curves in two-phase systems...
Journal Articles
J Pet Technol 46 (09): 752.
Paper Number: SPE-29227-PA
Published: 01 September 1994
... of any serious quality problems related to the samples or the sampling data; these problems must be communicated to the client before proceeding with the fluid study. Poor sample quality can arise from such sources as sampling nonrepresentative fluid, human error during sampling or field transfers...
Journal Articles
Trans. 216 (01): 460–464.
Paper Number: SPE-1352-G
Published: 01 December 1959
...K.H. Coats; M.R. Tek; D.L. Katz Published in Petroleum Transactions, AIME, Volume 216, 1959, pages 460–464. Introduction A large number of boundary value problems encountered in unsteady-state heat transfer, fluid flow through porous media, neutron diffusion and mass transfer involve the solution...
Journal Articles
Trans. 219 (01): 109–123.
Paper Number: SPE-1313-G2
Published: 01 December 1960
...Joseph E. Warren; Ronald L. Reed; Harvey S. Price Published in Petroleum Transactions, AIME, Volume 219, 1960, pages 109–123. Abstract The behavior of the reverse-combustion process in a linear adiabatic system is theoretically investigated by means of an idealized physical model. This model...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2458828-MS
... reported and calculated azimuth. If a disagreement is observed, then the likely cause can be determined such as incorrect north reference, miscorrelated raw data, clerical errors, or incorrect reference declination. URTeC 2458828 Page 6 Figure 7: Plot showing the difference between corrected and reported...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1518
... principal component analysis forecast error covariance statistics © 2012 SEG DOI httpdx.doi.org/10.1190/segam2012-1518.1 SEG Las Vegas 2012 Annual Meeting Page 1 Main Menu © 2012 SEG DOI httpdx.doi.org/10.1190/segam2012-1518.1 SEG Las Vegas 2012 Annual Meeting Page 2 Main Menu © 2012 SEG DOI...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0097
... with 2.5% error. DOI httpdx.doi.org/10.1190/segam2013-0097.1© 2013 SEG SEG Houston 2013 Annual Meeting Page 1541 The impacts of velocity for reservoir images of RTM Figure 4: Waveform analysis of RTM and WEDM (P2). Above) Accurate velocity. Below) Slower velocity with 2.5% error. Figure 5: The sensitivity...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5875652
... High High Less Error will be high but the signal strength will be good. 3 Less Medium (less high) High Error will be less and signal strength will be good. SEG New Orleans Annual Meeting Page 5090 DOI httpdx.doi.org/10.1190/segam2015-5875652.1© 2015 SEG EDITED REFERENCES Note: This reference list...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2986433
... m and slowness error tolerances p from 10 -5 s/m to 10-14 s/m. Colors indicate relative computation times. Contour lines show decadic logarithms of global travel time errors relative to the reference ray trajectories. Top: P-wave, middle: SH-wave, bottom: SV-wave. 10.1190/segam2018-2986433.1 Page...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0136
..., it is necessary to lessen the errors of the approximation (1). For this, I use another additional ray to the point x = X/2. In other words, I consider two reference rays: one at the largest offsets point X2 and another ray at the offset X1 = X2/2. For the offset interval [0, X1], I use equation (1...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216264
... and is detailed in the reference book by Chiles & Delfiner. (Chiles & Delfiner, 2012). Usually, in Kriging with measurement error, a variance of this error is assigned to each data point, which characterizes the uncertainty of the measurement at the point location. In this paper, data come from a set of profiles...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0439
... and reduced-rank noise suppression with custom reference filtering using in-streamer auxiliary sensors. The resulting total error, including navigation and system errors, is below 2 % for the deep target frequency range 0.1-1.0 Hz. coupling constant frequency response approximation spectrum...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1120
... Page 1 Main Menu Separation of signal and noise by signature deconvolution by some other means (e.g. Osman and Robinson, 1996) such that sttt ess , (2) where ste is the unknown error in the source signature estimate. Classical deconvolution (e.g. Robinson and Osman, 1996) finds an approximate inverse...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3750676
... This paper proposes an enhancement to the accuracy of the Fourier Finite Difference (FFD) method used in the one-way wave equation. Errors associated with FFD can be magnified in media with strong lateral variations in velocity. To reduce the magnitude of these errors, the reference velocity...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1625
... as proposed by Jerez, 2003. He was using an iterative scheme for solving the set of nonlinear algebraic equations, thus linearizing the problem. As opposed to him, we invert directly the system of equations (1.1-1.4) to solve for the unknowns. The method and its sensitivity to input errors are tested on three...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5858700
... Summary We propose an interferometric least-squares migration method that can significantly reduce migration artifacts due to statics and errors in the near-surface velocity model. We first choose a reference reflector whose topography is well known from the, e.g., well logs. Reflections from...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-1439
.../segam2013-1439.1© 2013 SEG SEG Houston 2013 Annual Meeting Page 724 Bayesian inversion and correlated data noise (a) (b) Figure 3: a) RJ-MCMC inversion of Scarborough gas field CSEM data ignoring correlated error. b) Color images are normalized residuals at each frequency at each offset from 1000 randomly...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0917
... sinusoidal interfaces. (b) Error in PS solution at = 0.3. (c) Error in RBF-FD/AC solution at = 0.3. 00 4 22 16 33 Page 3548SEG Denver 2014 Annual Meeting DOI httpdx.doi.org/10.1190/segam2014-0917.1© 2014 SEG Seismic modeling with RBF-FD differentiation in data field v at = 0.3, respectively...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17747473
... due to the different azimuth center. Therefore, it indicates that the anisotropic inversion is affected by the azimuth width and azimuth center. Figure 2: Inversion errors of four azimuth distribution schemes. © 2017 SEG SEG International Exposition and 87th Annual Meeting Page 338 The influence...

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