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DMO (dip moveout) processing/es

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Proceedings Papers

Paper presented at the 1992 SEG Annual Meeting, October 25–29, 1992
Paper Number: SEG-1992-0979
... suncorrected for dip (gray), after DMO cor- rection with a ~(2) DMO process (black), and after DMO correction with a constant-velocity DMO process (dotted). (b) Residual moveout At at offset X = 3000 m as a function of reflector dip for the same shale-limestone data uncorrected (gray), DMO corrected with W(Z...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-1736
... to determining the velocity, or deriv e the v elocity estimates from some non-seismic source. What would be required is a rev ersal of the conventional processing sequence: V elocity Analysis (VA), Normal Moveout (NMO) Correction, Dip Moveout (DMO), Stack, (S) and P ost-Stac k Migration (PsSM) to...
Proceedings Papers

Paper presented at the 1984 SEG Annual Meeting, December 2–6, 1984
Paper Number: SEG-1984-0611
... common-offset section equation artificial intelligence nko frequency moveout spike section dmo Seismic 14 operator. Leaving out the low quefrency component in the band-limited operator is equivalent to deconvolving with a minimum-phase gapped operator. 611 Improving Resolution by Dip Moveout...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-0491
... ABSTRACT No preview is available for this paper. vector operator media construction implementation upstream oil & gas correspond gray curve equation receiver trajectory vti media dip moveout homogeneous media alkhalifah denote dmo operator zero-offset time...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-1731
... amplitude DMO processing and of an offset continuation partial differen- tial equation. They are equivalent at offset zero in However, the OC result is true for all and does not depend on the assumption. We further show how the output of the DMO processing can be used for AVO/AVA Introduction Dip (DMO) maps...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-0487
.... Prosp., 29, 374-409 (1981). D. Hale, Ed., DMO processing, Geophysics Reprint Series, no. 16, Soc. Expl. Geophys. (1995). D. Miller and R. Burridge, Multiparameter inversion, dip moveout, and the generalized Radon transform , in: Geo- physical inversion. Eds. J.B. Bednar. L.R. Lima, R.H. Stolt and A.B...
Proceedings Papers

Paper presented at the 2004 SEG Annual Meeting, October 10–15, 2004
Paper Number: SEG-2004-0171
... moveout inversion can help in building physical models for reservoir charac- terization. As shown by Grechka and Tsvankin (1999b), the parameters V (1,2) nmo and (1,2,3) are responsible for all time-processing steps for orthorhombic anisotropy, including NMO correction, dip-moveout (DMO) removal, and...
Proceedings Papers

Paper presented at the 1995 SEG Annual Meeting, October 8–13, 1995
Paper Number: SEG-1995-1464
... rac t i on o f mu l t i p l es 4 Fig. 3: F-K filtering and predictive deconvolution, DMO-stack and time migration. Fig. 4: Adaptive. subtraction of wave-equation modeled seafloor-generated multipes, predictive deconvolution, DMO-stack and time migration. 1467 1995. Society of Exploration...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1685
... other models are computed from equation (3). 1 where is the horizontal velocity. (2) The parameters and (or and are sponsible for all time-processing steps (NMO, DMO, and time migration) and can be determined from mo- veout velocities measured for two different reflector dips (Alkhalifah and Tsvankin...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996099
... . Hale , D. , 1984 , Dip-moveout by Fourier transform : Geophysics , 49 , 741 – 757 , 10.1190/1.1441702 . Hu , J. , and G. T. Schuster , 1998 , Migration deconvolution : SPIE’s International Symposium on Optical Science, Engineering, and Instrumentation...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1889
... than within the CMP gathers, only. Thus, the CRS attributes serve as a basis for the moveout correction which is mandatory for determination of the residual statics. The first results of a small and not too complex real data example show that our new approach is able to estimate residual statics...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1998
Paper Number: OTC-8756-MS
... mention that seismic processing at AHC is limited to specialized processing, not routinely available at contractors. Only depth processing is performed; we do not perform DMO or time migration. Another rather unique aspect of the processing philosophy at AHC is the strong emphasis on pre-stack processing...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-0983
... data Figure 6 Comparison between DMO -post stack migration and PSTM. Sihil processing of C wave The processing workflow for the converted wave (C wave) included QC of the orientation of the geophones, the 3- trace rotation using the tilt, toss, heading from the acquisition is adjusted with the one...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1881
... between the constant till velocity and the constant water ve- locity. Datuming using the wave equation The most general way to datum seismic data is using a procedure based strictly on the wave equation. This can be prohibitively expensive, es- pecially in 3D, and is prone to error when the velocity of...
Proceedings Papers

Paper presented at the 1993 SEG Annual Meeting, September 26–30, 1993
Paper Number: SEG-1993-0892
..., no. 10, p.l674-1676. Forel, D. and Gardner, G.H.F., 1988, A Three Dimensional Perspective on Two Dimensional Dip Moveout, Geophysics, vol. 53, P. 604-610. Gardner, G.H.F., Wang, S.Y., Pan, N.D., and Zhang, Z., 1986, Dip Moveout and Presfack Imaging. OTC Annual Meeting, Houston. Gibson, B., Lamer, K...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-0801
... direct ore detection, partial prestac k migrated or dip moveout (DMO) corrected stacked data contain the most characteristic response of a lenticular orebody. After full prestac k migration lithological contacts and faults are accurately positioned but the orebody anomaly is reduced in size. Introduction...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-1417
...., 1199{1202. Harrison, M. P., 1992, Processing of p-sv surface-seismic data: Anisotropy analysis, dip moveout, and migra- tion: Ph.d. dissertation: Univ. of Calgary. Nefedkina, T. V., 1980, Detection of transformed re ected ps w avesby the cdp method with nonsymmetrical sampling: So v. Geol. and Geophys...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-1191
... were applied. The data also were gained using a 1.2 s AGC window. Velocity analysis in the CDP domain was performed using the constant-velocity- stacking method. Dip-moveout corrections were done on the prestack CDP gathers. This step focussed some of the dipping re ectors on the eastern ank of the...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-1835
... structure (Rietv eld et al.,1997). Although approximate methods for computing prestack migrations exist, such as NMO, DMO, and zero-o set migration of common-o set data volumes, it may still be desirable to honor kinematics more precisely even in V (z) media. Furthermore, it is mathematically easier to...
Proceedings Papers

Paper presented at the 1994 SEG Annual Meeting, October 23–28, 1994
Paper Number: SEG-1994-1000
... here) and can be used to refine the inversion results. From the discussion above it follows that all ES have the same time-migration response in the prestack domain. We conclude that the inversion of dip moveout enables us to perform all essential time-processing steps. INVERSION IN A LAYERED MEDIUM In...

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