Modeling gravity and tensor gravity data using poisson's...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C703S005000

Reexamination Certificate

active

06993433

ABSTRACT:
The present invention is a method for determining a parameter of interest of a region of interest of the earth. At least one component of potential fields data is measured at a plurality of locations over a region of interest including a subterranean formation of interest. The potential fields data are selected from magnetic data and gravity data. An initial geophysical model is determined for the region including the subterranean formation of interest. For the model, geophysical tensor data is updated using a forward model at a plurality of locations using a High Order Compact Finite Difference method. A difference between the estimated model value and the measured value of the potential field measurements are determined, and the geophysical model is updated. The model is iteratively updated and compared to the measured data until the differences reach an acceptable level and the parameter of interest has been determined.

REFERENCES:
patent: 4964103 (1990-10-01), Johnson
patent: 4987561 (1991-01-01), Bell
patent: 5200929 (1993-04-01), Bowers
patent: 5576485 (1996-11-01), Serata
patent: 5583825 (1996-12-01), Carrazzone et al.
patent: 5675147 (1997-10-01), Ekstrom et al.
patent: 5678643 (1997-10-01), Robbins et al.
patent: 5729451 (1998-03-01), Gibbs et al.
patent: 5889729 (1999-03-01), Frenkel et al.
patent: 6125698 (2000-10-01), Schweitzer et al.
patent: 6278948 (2001-08-01), Jorgensen et al.
patent: 6424918 (2002-07-01), Jorgensen et al.
patent: 6430507 (2002-08-01), Jorgensen et al.
patent: 6502037 (2002-12-01), Jorgensen et al.
patent: 6606586 (2003-08-01), Ishikawa
patent: 6718291 (2004-04-01), Shapiro et al.
Routh, Partha S.; et al.;Base of the Salt Imaging Using Gravity and Tensor Gravity Data, 71st Ann. Internat. Mtg.: Soc. of Expl. Geophys., pp. 1482-1484, 2 Figs.
Jorgensen, Greg J. et al.;Joint 3-D Inversion of Gravity, Magnetic and Tensor Gravity Fields for Imaging Salt Formations in the Deepwater Gulf of Mexico, 70th Ann. Internat. Mtg.: Soc. of Expl. Geophys., pp. 424-426.
Margaret H. Wright;Interior Methods for Constrained Optimization, Acta Numerica, vol. 1, Cambridge University Press, 1992, pp. 341-407.
Spotz, W.F.;A High-Order Compact Formulation for the 3D Poisson Equation Numerical Methods for Partial Differential Equations, 12, 1996 pp. 235-243, 4 Figs.
Calculation of Weights in Finite Difference Formulas, SIAM Rev., vol. 40, No. 3, Sep. 1998, pp. 685-691.
Gupta, Murli M. et al.;Symbolic Derivation of Finite Difference Approximations for the Three-Dimensional Poisson Equation, Numerical Methods for Partial Differential Equations, vol. 14, No. 5, Sep. 1998, pp. 593-606, 1 Table.
Yishi, L. et al., “Simultaneous Inversion of Gravimetric and Magnetic Data Constrained With Internal Correspondence Analysis and its Application to the Tarim Basin,” Seismology and Geology, vol. 18, No. 4, pp 361-368 (Dec. 1996)—Abstract only presented in English.
Xichen, W., “The Research on Generalizeal Joint Inversion Method Used to Inverse Magnetic and Density Interface,” Jnl of Changchun University of Earth Science (1990)—Abstract only presented in English.
Rongchang, J., “Normalized Solution of Linear Equation System With Applications,” Geophysical Prospecting For Petroleum, vol. 31, No. 2, pp. 38-46 (Jun. 1992)—Abstract only presented in English.
Wen-Cai, Y. et al., “Velocity Imaging From Reflection Seismic Data by Joint Inversion Techniques,” Acta Geophysica Sinica, vol. 30, No. 6, pp. 617-627 (Nov. 1987)—Abstract only presented in English.
Zhaoqin, M., “Optimal filtering method for separating off gravity anomalies,” OGP, 1997 32(3), pp. 376-386—Abstract only presented in English.
Xiwen, W., “Direct hydrocarbon prediction using joint inversion of gravimetric and seismic data,” OGP, 1997, 32(2), pp. 221-228—Abstract only presented in English.
Rui, F. et al., “A Non-Block Consistent Model in Seismo-Gravity Inversion,” Acta Geophysica Sinica, vol. 36, No. 4, pp. 463-475 (Jul. 1993)—Abstract only presented in English.
Xiaoping, M. et al., “Gravity inversion using weight-smoothed boundary element method,” OGP, 1995, 30(4), pp. 523-532—Abstract only presented in English.
Bell, R., Full Tensor Gradiometry: 3-D Tool for the Next Century, pp. 190-193 and drawings (date and publication unknown).
Pratson, L.R. et al., “A High Resolution 3-D Marine Gravity Gradiometry Survey over a Gulf of Mexico Deepwater Subsalt Prospect in the Mississippi Canyon Area,” (Apr. 1994)—Abstract.
Egorova, T.P., “Preliminary 3-D Density Model for the Lithosphere of Dnieper-Donets Basin on the Basis of Gravity and Seismic Data,” pp. 191-193 (date and publication unknown).
Dransfield, M.H., “Invariments of the Gravity Gradient Tensor for Exploration Geophysics,” CRA Exploration, Abstract G-12B-3.
Kaufmann, R. et al., “Joint Tomographic Inversion of Travel-Time Residuals and Gravity Anomalies for Crustal Velocity Structure in Southeast Tennessee,” School of Earth and Atmospheric Sciences, Abstract S41A-4.
Mickus, K. et al., “Gravity Gradient Tensor Analysis of the Arkoma Basin and Ouachita Mountains, Ark. And Ok.,” Abstract T11B-13.
Bocchio, F., “A <Tidal> Magnetic Field?,” Annali Di Geofisica., vol. XL, No. 5, pp. 1029-1032 (Oct. 1997).
Zadro, Maria et al., “Spectral methods in gravity inversion: the geopotential field and its derivatives,” pp. 1433-1443 (date and publication unknown).
Bocchio, F., “Research Note: on some implications of the Poisson relation,” Geophys. J. Int. (1998) 133, 207-08.
Pulliam, R. Jay et al., “Seismic theory, inversion and resolution,” Seismological Research Letters, vol. 62, No. 1, (Jan.-Mar., 1991), p. 19.
Geophysics, Session 112, Oct. 30, 1996 (CCC:C109) Abstract pp. A-283-284.
Murthy, I.V.R. et al., “Gravity Anomalies of a Vertical Cylinder of Polygonal Cross-Section and Their Inversion,” Computers & Geosciences, vol. 22, No. 6 pp. 625-630 (1996).
Zheng, Y. et al., “Joint inversion of gravity and magnetic anomalies of eastern Canada,” Can. J. Earth Sci., 35: 832-53 (1998).
Chamot-Rooke N., et al., “Constraints on Moho Depth and Crustal Thickness in the Liguro-Provencal Basin from a 3D Gravity Inversion: Geodynamic Implications,” Revue de L'Institut Francais Du Petrole, vol. 52, No. 6 Nov.-Dec. 1997 pp. 557-583.
Association Round Table pp. 1925-1926 (date unknown).
Bowin, C. et al., “Depth estimates from ratios of gravity, geoid, and gravity gradient anomalies,” Geophysics, vol. 51, No. 1 (Jan. 1986), pp. 123-136, 12 Figs, 2 Tables.
Hansen, R., “Euler Deconvolution and Its Generalizations,” pp. 1-8 (date unknown).
Jacobsen, B., “A case for upward continuation as a standard separation filter for potential-field maps,” Geophysics, vol. 52, No. 8 (Aug. 1987), pp. 1138-1148, 10 Figs.
Vasco, D.W., “Groups, algebras, and the non-linearity of geophysical inverse problems,” Geophys. J. Int. (1997), 131, pp. 9-23.
Ates, A., et al., “Geophysical investigations of the deep structure of the Aydin-Milas region, southwest Turkey: Evidence for the possible extension of the Hellenic Arc,” Isr. J. Earth Sci.: 46: pp. 29-40 (1997).
Doering, J. et al., “Gravity Modeling in the Southern Urals,” Abstract, Geophysics/Tectonophysics (Posters) Session 159 (Oct. 1996).
Opfer, R.R., “Synthetic Gravity Modelling—An Interpretation Tool to Integrate Seismic and Gravity Data,” P140 EAEG—55thMtg and Technical Exhibition (Jun. 1993).
Papp, G., “Trend Models in the Least-Squares Prediction of Free-Air Gravity Anomalies,” Periodica Polytechnica Ser. Civil. Engl., vol. 37, No. 2, pp. 109-130 (1993).
Sumanovac, F., et al., “System Architecture for 3D Gravity Modelling,” Geol. Croat. 49/2 pp. 145-153, 12 Figs. (1996).
Danchiv,

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Modeling gravity and tensor gravity data using poisson's... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modeling gravity and tensor gravity data using poisson's..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling gravity and tensor gravity data using poisson's... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3603049

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.