Dr. John Castagna, Professor
Department of Earth and Atmospheric Sciences, College of Natural Sciences and Mathematics
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Areas of expertise
- Exploration geophysics
- Seismic attributes
- Reservoir characterization
- Spectral decomposition
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Awards
- Society of Explorational Geophysicists Outstanding Reviewer Award, 2010
- The Leading Edge Best Paper Award, 2010
- Geophysical Society of Houston Honorary Life Membership
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Publications
- Puryear, C., Portniaguine, O., Cobos, C., and Castagna, J. P., 2012, Constrained least squares spectral analysis: Geophysics, November
- Zhang, R., and Castagna, J. P., 2011, Thin-layer reflectivity inversion using basis pursuit decomposition, Geophysics, December
- Nguyen, T., and Castagna, J. P., 2010, High resolution reflectivity inversion: Journal of Seismic Exploration, V. 19, No. 4, October
- Fa, L., Castagna, J.P., Zeng, Z., Brown, R.L., and Zhao, M. 2010. Effects of anisotropy on time depth relation in transversely isotropic medium with a vertical axis of symmetry: Chinese Science Bulletin, Vol. 55, No. 21:2243-2251.
- Liao, Q., Kouri, D., Nanda, D., and Castagna, J. P., 2011, Automatic first break detection by spectral decomposition using minimum uncertainty wavelets, SEG, Expanded Abstracts, 1637- 1631
- Zhang, R., and Castagna, J. P., 2011, Sparse layer inversion with basis pursuit decomposition, SEG, Expanded Abstracts, 2571-2585
- Benabentos, M., and Castagna, J. P., 2011, Density estimate from well log data using a diagenetic rock model, SEG, Expanded Abstracts, 2094-2098
- Chopra, S., and Castagna, J. P., 2013, Amplitude Variation With Offset, Developments in Geophysics Series, Society of Exploration Geophysicists (accepted, copy editing complete)
- Lee, G, and Castagna, J. P., 2007, Untested carbonate buildups in the Bermejo Field, Ecuador: A potential new play type in the Oriente Basin: AAPG Bulletin, 95(2), pp. 135-149
- Chopra, S., Castagna, J. P., Xu, Y., and Tonn, R., 2007, Thin bed reflectivity inversion and seismic interpretation: SEG Expanded Abstracts
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Patents
- Method and apparatus for measuring formation compression and shear wave velocity, 10/20/1987
- Instantaneous spectral analysis, 01/10/2006
- Determination of fluid properties of earth formations using stochastic inversion, 07/09/2003
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Funded Research
Not available
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Curriculum Vitae
JOHN PATRICK CASTAGNA
Residence: 706 Hawthorne Unit C, Houston, TX 77006
EDUCATION
1983 Ph.D., University of Texas at Austin, Exploration Geophysics
1981 M.A., Brooklyn College, Geochemistry
1976 B.S., Brooklyn College, major in Geology, minor in Chemistry
PERSONAL INFORMATION
Two children. 56 years old.
EXPERIENCE
2004-present Professor and Sheriff Chair, University of Houston, Director, Center for Applied
Geophysics (CAGE)
2000-2004 President, Fusion Geophysical
1996-2004 Professor and McCollough Chair in Geology and Geophysics; Director, Institute for
Exploration and Development Geosciences, University of Oklahoma;
1995-1996 Dual appointment as Senior Principal Research Geophysicist for ARCO
Exploration and Production Technology, and Visiting Research Scientist at the
Geotechnology Research Institute of the Houston Advanced Research Center.
1994-1995 Principal Geophysicist, ARCO International Oil and Gas Co.
1990-1994 Principal Geophysicist, Vastar Resources (a subsidiary of ARCO)
1989-1990 Manager, Seismic Analysis Research, ARCO Oil and Gas Co.
1988-1989 Director, Geoseismic Interpretation Research, ARCO Oil and Gas Co.
1987-1988 Technical Coordinator, Rock Physics Research, ARCO Oil and Gas Co.
1986 Log Analyst, Reservoir Engineering Services, ARCO Oil and Gas Co.
Responsible for formation evaluation and reservoir characterization.
1982-1985 Technical Coordinator, Sonic Logging Research, ARCO Oil and Gas Co.
1980-1981 Sr. Res. Geophysicist, Well Logging Research, ARCO Oil and Gas Co.
MISCELLANEOUS
1999 First Vice-President of the Society of Exploration Geophysicists
1998-1997 Chairman, The Leading Edge Editorial Board
1996-1995 SEG Distinguished Lecturer
Received Best Paper Award 2001 The Leading Edge
Technical Program Chairman 2003 SEG Meeting, Dallas,
Technical Program Chairman 2009 SEG Meeting, Houston
Received SEG Reginald Fessenden Award
Received GSH Honorary Life Membership
Received SEG 2010 Outstanding Reviewer Award
RECENT PUBLICATIONS
Puryear, C., Portniaguine, O., Cobos, C., and Castagna, J. P., 2012, Constrained least squares spectral
analysis: Geophysics, November
Zhang, R., and Castagna, J. P., 2011, Thin-layer reflectivity inversion using basis pursuit decomposition,
Geophysics, December
Nguyen, T., and Castagna, J. P., 2010, High resolution reflectivity inversion: Journal of Seismic
Exploration, V. 19, No. 4, October
Fa, L., Castagna, J.P., Zeng, Z., Brown, R.L., and Zhao, M. 2010. Effects of anisotropy on time depth
relation in transversely isotropic medium with a vertical axis of symmetry: Chinese Science
Bulletin, Vol. 55, No. 21:2243-2251.
Liao, Q., Kouri, D., Nanda, D., and Castagna, J. P., 2011, Automatic first break detection by
spectral decomposition using minimum uncertainty wavelets, SEG, Expanded Abstracts, 1637-
1631
Zhang, R., and Castagna, J. P., 2011, Sparse layer inversion with basis pursuit decomposition,
SEG, Expanded Abstracts, 2571-2585
Benabentos, M., and Castagna, J. P., 2011, Density estimate from well log data using a
diagenetic rock model, SEG, Expanded Abstracts, 2094-2098
Chopra, S., and Castagna, J. P., 2013, Amplitude Variation With Offset, Developments in
Geophysics Series, Society of Exploration Geophysicists (accepted, copy editing complete)
OLDER PUBLICATIONS
Lee, G, and Castagna, J. P., 2007, Untested carbonate buildups in the Bermejo Field, Ecuador: A potential
new play type in the Oriente Basin: AAPG Bulletin, 95(2), pp. 135-149
Castagna, J. P., 2007, On the use of seismic data in reservoir characterization: in D. J. O’Meara, ed.,
Reservoir Characterization, PennWell
Chopra, S., Castagna, J. P., Xu, Y., and Tonn, R., 2007, Thin bed reflectivity inversion and seismic
interpretation: SEG Expanded Abstracts
Dwan, F., Portniaguine, O., Sparkman, G., Burnett, M., and Castagna, J. P., 2007, High-Resolution
Geological Visualization Using Spectral Inversion: Offshore Technology Conference OTC-18951-PP
Chopra. S, and Castagna, J. P., 2007, Thin Bed Reflectivity Inversion and Seismic Interpretation: CSEG
Expanded Abstracts, 524-527 and SEG Expanded Abstracts, n. 1, 1923-1927
Calderon, J., and Castagna, J. P., 2007, Porosity and lithologic estimation using rock physics and multiattribute
transforms in Balcon Field, Colombia: The Leading Edge, 26, 142
Lin, F, and Castagna, J., 2008, An accurate and fast algorithm of calculating R/T coefficients; China
Science Magazine (indexed by SCI ).
Puryear, C., and Castagna, J. P., 2008, Layer thickness determination and stratigraphic interpretation using
spectral inversion: Theory and application: Geophysics, 73, R37
Puryear, C., Tai, S., Castagna, J., Masters, R., and Dwan, F., 2008, Comparison of frequency attributes from
CWT and MPD spectral decompositions of a complex turbidite sand model: SEG Expanded Abstracts
Zhang, R., and Castagna, J. P., 2008, Checkshot-sonic microscale tomography: SEG Expanded Abstracts
Rojas, M., Castagna, J. P., Krishnamurti, R., Han, D., and Tutuncu, A., 2008, Shear-thinning behavior of
heavy oil samples: SEG Expanded Abstracts
Chopra, S, and Castagna, J., 2008, Thin-bed reflectivity – an aid to seismic interpretation: CSEG, Expanded
Abstracts
Chopra. S, and Castagna, J. P., 2009, Thin Bed Reflectivity Inversion: First Break
Chopra, S., Castagna, J.P., and Xu., Y., 2009, Relative acoustic impedance application for thin-bed
reflectivity inversion: SEG Expanded Abstracts
Gassiyev, A., and Castagna, J. P., 2009, Mixing models and frame moduli bounds in complex lithologies:
SEG Expanded Abstracts
Tai, S., Puryear, C., and Castagna, J. P., 2009, Local frequency as a direct hydrocarbon indicator: SEG
Expanded Abstracts
Cuesta, J., Perez, R., Hernandez, F., Carrasquel, W., Cabrera, R., Moreno, C., and Castagna, J. P., 2009,
The use of seismic attributes and spectral decomposition to support the drilling plan of the UrucoaBombal
fields: SEG Expanded Abstracts
Berryman. J., Ecker, C., and Castagna, J. P., 2006, Elasticity of porous media, translation of classic paper
by F. Gassmann, in M. A. Pelissier, ed., Classics in Elastic Wave Theory, Society of Exploration
Geophysicists
Fa, L., Brown, R.L., and Castagna, J. P., 2006, Anomalous postcritical refraction behavior for certain
transversely isotropic media: J. Acoust. Soc. Am. 120 (6), pp.3479-3492
Sinha, S., Routh, P. S., Anno, P. D., and Castagna, J. P., 2005, Spectral decomposition of seismic data with
continuous-wavelet transform: Geophysics 70, P19 - P25
Chen, H., Brown, R. L., and Castagna, J. P., 2005, AVO for one- and two-fracture set models: Geophysics
70, C1- C5
Li, J., and Castagna, J., 2004, Support Vector Machine (SVM) pattern recognition for AVO classification,
Geophysical Research Letters, Vol., 31
Saleh, A. A., and Castagna, J. P., 2004, Revisiting the Wyllie time-average equation in the case of nearspherical
pores, Geophysics, v. 69, no. 1
Lin, F., Castagna, J. P., Suarez-Rivera, R., and Sun. P., 2003, An acoustic-logging transmission-network
model (continued): Addition and multiplication ALTNs: J. Acoust, Soc. Am., 113 (5), May 2003
Mahob, P.N. and Castagna, J. P., 2003, AVO polarization and hodograms: AVO strength and polarization
product: Geophysics, 68, 849-862.
Doherty, P. D., Soreghan, G. S, and Castagna, J. P., 2002, Outcrop-based reservoir characterization: A
composite phylloid-algal mound, western Orogrande basin (New Mexico), AAPG Bulletin, v. 86, pp.
779-795
Lin, F., Castagna, J. P., Hovem, J. M., and Dong, D., 2002, An acoustic-logging transmission network
model: J. Acoust. Soc. Am., v. 111, no. 5, pp. 2158 – 2165
White, L, and Castagna, J. P., 2002, Stochastic fluid modulus inversion: Geophysics, 67, No. 12
Castagna, J. P., 2001, Recent advances in seismic lithologic analysis, Geophysics, 66, 42
Chen, H., Castagna, J. P., Brown, R. L., and Ramos, A. C. B., 2001, Three-parameter AVO crossplotting in
anisotropic media, Geophysics 66, 1359
Ramos, A.C.B., and Castagna, J. P., 2001, Useful approximations for converted-wave AVO, Geophysics
66, 1721
Sarkar, D., Castagna, J. P., and Lamb, W. J., 2001, AVO and velocity analysis, Geophysics, 66, 1284
Castagna, J. P., and Hooper, J., 2000, A Simple Model for Saturation Curve Fitting: SEG Annual
Convention, Calgary
Chen, H. and Castagna, J. P., 2000, Anisotropic effects on full and partial stacks: Geophysics, V. 65, No.
4, p. 1028
Fa, L., Castagna, J. P., and Dong, D., 2000, Directivity and reciprocity analysis of array sonic logging
transmission network: Online Symposium for Electronics Engineers, Proceedings, V. 1
Gallice, F., Castagna, J. P., Doherty, P., Soreghan, L., Sondergeld, C., and Rai, C., 2000, Ultrasonic
Velocity Measurements in Carbonate Algal Mound Samples, Orogrande Basin, New Mexico: SEG
Annual Convention, Calgary
Huffman, A., and Castagna, J. P., 2000, Rock physics and mechanics considerations for shallow water flow
characterization: OTC-11974, Offshore Technology Conference, May 2, Houston
Liu, Z., and Castagna, J., 2000, Wavelet Extraction and Seismic Modeling Using Neural Networks: SEG
Annual Convention, Calgary
Mahob, P., and Castagna, J. P., 2000, Fluid Substitution and Shear-Wave Velocity Prediction Including
Dispersion Effects: A Case Study, NW Shelf, Australia: SEG Annual Convention, Calgary
Nguyen, T., and Castagna, J., 2000, Matching Pursuit of Two-Dimensional Seismic Data and Its Filtering
Application: SEG Annual Convention, Calgary
Poth, L., and Castagna, J. P., 2000, Using AVO Inversion Techniques to Model an Amplitude Anomaly
Prior to Drilling: SEG Annual Convention, Calgary
Samake, D., Castagna, J. P., and Mahob, P., 2000, Stochastic Fluid Substitution and Seismic Modeling:
SEG Annual Convention, Calgary
Sun, Q., Castagna, J. P., and Liu, Z., 2000, AVO Inversion by Artificial Neural Networks: SEG Annual
Convention, Calgary
Sun, S., and Castagna, J. P., 2000, Attenuation Estimation From Vertical Seismic Profile Data: SEG Annual
Convention, Calgary
Batzle, M. L., Han, D. H., and Castagna, J. P., Fluids and Frequency Dependent Seismic Velocity of
Rocks: 1999 Annual SEG Convention, Houston, Texas, pp. 5-8
Castagna, J. P., 1999, Recent Advances in Exploration Geophysics, Geotimes, January (invited paper)
Castagna, J. P., 1999, Velocity Dispersion – How Significant Is It?: presented at Houston Advanced
Research Center Geotechnology Research Institute Symposium (May) and at the OU Geophysical
Reservoir Characterization Consortium Annual Meeting (September)
Castagna, J. P., O’Meara, D., Ucan. S., Cranganu, C., and Batzle, M. M., 1999, Rock Physics Basis for
Seismic Time-Lapse Monitoring, invited keynote presentation, 1999 SEG Development and Production
Forum, Kananaskis, Canada. Selected by the organizers as one of the best papers and presented again at
1999 SEG Annual Convention Workshop review of D&P forum.
Chen, H., Castagna, J. P., Brown, R. L., and Ramos, A. C. B., 1999, Three-Parameter AVO Crossplotting
in Anisotropic Media: 1999 Annual SEG Convention, Houston, Texas, pp. 73-76
Chen, H., and Castagna, J. P., 1999, Study of Anisotropic Effects on Full and Partial Stacks: 1999
Annual SEG Convention, Houston, Texas. Pp. 1892-1895
Huffman, A., and Castagna, J. P., 1999, Rock Physics and Mechanics Considerations for Shallow Water
Flow Characterization, 1999 Int. Forum on Shallow Water Flows, Oct., League City, TX
Sarkar, D., Castagna, J. P., and Lamb, W. J., 1999, AVO and Velocity Analysis: 1999 Annual SEG
Convention, Houston, Texas, pp. 840-842
Lin, F., Castagna, J. P., and Hovem, J. M., 1999, Derivation and Simulation of Source Function
Acoustic Logging: 1999 IEEE International Ultrasonics Symposium, Lake Tahoe, Nevada
Liu, Z., and Castagna, J. P., 1999, The Impulse Response of BP Neural Networks and Seismic Wavelet
Extraction: International Neural Network Society, IJCNN’99, July, Washington D. C.
Liu, Z., and Castagna, J. P., 1999, Avoiding Overfitting Caused by Noise with Uniform Training Mode:
International Neural Network Society, IJCNN’99, July, Washington D. C.
Mahob, P., Castagna, J. P., Young, R, 1999, AVO Inversion of a Gulf of Mexico Bright Spot – A Case
Study: Geophysics, v. 64, No. 5, 1480-1491
O’Meara, D. J., Jalfin, G., and Castagna, J. P., 1999, Feedback from 3D Geomodeling and Log- Derived
Capillary Pressure Functions Leads to Improved Well Log Interpretation, In Situ Permeability
Estimates, and More Accurate Volumetrics: 1999 Landmark World-Wide Forum, Houston, Texas
Castagna, J. P., Swan, H. W., and Foster, D., 1998, Framework for Interpretation of AVO gradient and
intercept: Geophysics, May
Bork, J., Yin, C., Castagna, J., Karazincir, H., and Wood, L., 1997, An investigation into unusual AVO
signatures in the Gulf of Mexico and Trinidad: presented at 67th Annual International Meeting, Society of
Exploration Geophysicists
Castagna, J. P., 1997, Permeability determination using acoustic logs: presented at Advances in Seismic
Technologies, Consortium for Emerging Gas Resources in the Greater Green River Basin, Denver,
11/11/97
Castagna, J. P., and O’Meara, D., 1997, On the feasibility of seismic waterflood monitoring: Statoil
Research Symposium, 9/12/97
Castagna, J. P., and O’Meara, D., 1997, Reservoir Characterization: white paper for Energy
Research Clearinghouse and Reservoir Recovery Forum, 85 pp.
Castagna, J. P. and Swan, H. W., 1997, Principles of AVO crossplotting: The Leading Edge, Reprinted in
Applications of Emerging Technologies, Unconventional Methods in Exploration for Petroleum and
Natural Gas V, Proceedings, Institute for the Study of Earth and Man, SMU University. Also presented at
Society of Professional Well Log Analysts Multidiscipline Low Contrast Pay Symposium, 5/15/97, New
Orleans, and AAPG 1997 Mid-Continent Section Meeting, Oklahoma City
Mahob, P. N., Young, R., and Castagna, J. P., 1997, The effect of Radon filtering on a Central Gulf of
Mexico AVO Anomaly: presented at 67th Annual International Meeting, Society of Exploration
Geophysicists
Sparkman, G., and Castagna, J. P., 1997, Time-lapse reservoir monitoring and characterization: presented at
AAPG Annual Convention, 4/9/97
Castagna, J. P., 1996, Seismic reservoir monitoring economics: presented at 66th Annual International
Meeting, Research Workshop, Society of Exploration Geophysicists
Castagna, J. P., Sparkman, G., and Gobran, B., 1996, Seismic time-lapse monitoring: white paper for
Energy Research Clearinghouse, 85 pp.
Batzle, M. L., Han, D. H., and Castagna, J. P., 1995, Fluid effects on bright spot and
AVO analysis: presented at 65th Annual SEG Meeting, 1119-1121. Also presented at
SEG Summer Research Workshop, Vail, Co.
Castagna, J. P., 1995, Applied AVO analysis: use and abuse of amplitude variation with
offset. Fall 1995 SEG Distinguished Lecture.
Castagna, J. P., Batzle, M. L., and Han, D. H., 1995, Issues in rock physics and
implications for DHI interpretation: presented at 1st Conference of the Union of Latin
American Geophysicists, 575-577, invited paper. Also published in The Leading Edge,
14, 883-885
Castagna, J. P., Swan, H. S., Foster, D. L., and Peddy, C. A., 1995, Framework for
interpretation of AVO intercept and gradient: submitted to Geophysics
Castagna, J. P., 1994, Communication, integration, and the next geophysical frontier: The
Leading Edge, 13, 32-36
Castagna, J. P., and Foster, D. L., 1994, Critical aspects of AVO analysis: presented at 7th
Annual Venezuelan Geophysical Congress, invited session keynote address
Castagna, J. P., and Smith, S. W., 1994, Comparison of AVO indicators: a modeling
study: Geophysics, 59, 1849-1855. Presented at 63rd Annual SEG Meeting,
Received honorable mention for best presentation. Invited paper at 10th Annual Gulf
Coast SEG Meeting
Pan, G. S., Young, C. Y., and Castagna, J. P., 1994, An integrated target-oriented
prestack elastic waveform inversion: sensitivity, calibration, and application:
Geophysics, 59, 1392-1404. Also presented at 63rd Annual SEG Meeting
Castagna, J. P., 1993, Petrophysical imaging using AVO: The Leading Edge, 12, 172-178,
invited paper
Castagna, J. P., 1993, Amplitude-versus-offset analysis; tutorial and review: in J. P.
Castagna and M. M. Backus, Eds., Offset-Dependent Reflectivity - Theory and Practice
of AVO Analysis, Society of Exploration Geophysicists
Castagna, J. P., and Backus, M. M., Eds., 1993, Offset-Dependent Reflectivity - Theory
and Practice of AVO Analysis: Society of Exploration Geophysicists
Castagna, J. P., Batzle, M. L., Gaiser, J. E., Tubman, K. M., and Burnett, M. L., 1993,
Shear-wave velocity control: in J. P. Castagna and M. M. Backus, Eds., Offset-
Dependent Reflectivity - Theory and Practice of AVO Analysis, Society of Exploration
Geophysicists
Castagna, J. P., Batzle, M. L., and Kan, T. K., 1993, Rock physics; the link between rock
properties and AVO response: in J. P. Castagna and M. M. Backus, Eds., Offset-
Dependent Reflectivity - Theory and Practice of AVO Analysis, Society of Exploration
Geophysicists
Hong, M. R., Castagna, J. P., and Sicking, C. J., 1993, A model-based analysis of
amplitude-versus-offset variation of land seismic data: in J. P. Castagna and M. M.
Backus, Eds., Offset-Dependent Reflectivity - Theory and Practice of AVO Analysis,
Society of Exploration Geophysicists
Castagna, J. P., 1992, Petrophysical basis for AVO analysis: presented at the Joint
SEG/EAEG Summer Research Workshop. How Useful is AVO Analysis?, 371-372,
invited paper
Castagna, J. P., 1992, Velocity equations for AVO analysis: presented at the Joint
SEG/EAEG Summer Research Workshop. How Useful is AVO Analysis?, 377-384.
Selected as one of 10 best summer workshop papers and invited for presentation as a
poster paper at the 62nd Annual SEG Meeting
Greenberg, M. L., and Castagna, J. P., 1992, Shear-wave velocity estimation in porous
rocks; theoretical formulation, preliminary verification and applications: Geophysical
Prospecting, 40, 195-209
Lamb, W. J., Zhu, X., McMechan, G. A., Greenberg, M. L., and Castagna, J. P., 1992,
Elastic wave propagation in composite media: Geophysics, 57, 1155-1165
Castagna, J. P., 1991, Seismic lithology overview: presented at 61st Annual SEG Meeting,
paper SL 2.1, 1051-1053, invited paper
Pan, G. S., Young, C. Y., and Castagna, J. P., 1991, Sensitivity and resolution of an
integrated target-oriented prestack elastic inversion: presented at 60th Annual SEG
Meeting, paper SI 3.2, 1173-1176
Greenberg, M. L., Lamb, W. J., and Castagna, J. P., 1990, Porosity and lithology
estimation from elastic rock parameters: presented at EAEG/SEG Research Workshop,
Cambridge, England, paper 6.06, 360-363
Greenberg, M. L., Popa, M. L., Phillips, R. L., and Castagna, J. P., 1990, Estimation of
shear-wave velocity logs from conventional well logs: presented at EAEG/SEG
Research Workshop, Cambridge, England, paper 4.10, 283-286
Song, Y. Y., Castagna, J. P., Black, R. A., and Knapp, R. W., 1989, Sensitivity of near-
surface shear-wave velocity determination from Rayleigh and Love waves: presented at
59th Annual SEG Meeting, paper POS 5.10, 509-512
Castagna, J. P., 1987, Method and apparatus for measuring formation compressional and
shear-wave velocity, U. S. Patent No. 4,701,891, October 20, 1987
Castagna, J. P., Zucker, S. M., and Shoberg, T. G., 1987, Permeability indication with
conventional sonic waveforms: presented at SPWLA 28th Annual Logging Symposium,
paper MM
Eastwood, R.L., and Castagna, J. P., 1987, Interpretation of Vp
/Vs
ratios from sonic logs in Shear-wave
Exploration, S. H. Danbom and S. N. Domenico, Eds., 139-153
Castagna, J. P., 1985, Accuracy and limitation of sonic log and VSP measurements for
seismic exploration: presented at 55th Annual SEG Meeting, paper RS3, 281-283,
invited paper
Castagna, J. P., 1985, Shear-wave time-average equation for sandstones: presented at
55th Annual SEG Meeting, paper S10.2, 447-449
Castagna, J. P., Batzle, M. L., and Eastwood, R. L., 1985, Relationships between
compressional-wave and shear-wave velocities in clastic silicate rocks: Geophysics, 50,
571-581. Reprinted in Geophysics II, Tools for Seismic Interpretation, Treatise of
Petroleum Geology, American Association of Petroleum Geologists. Also reprinted in
- M. Nur, and Z. Wang, editors, Seismic and Acoustic Velocities in Reservoir Rocks,
Volume I, Society of Exploration Geophysicists. Also presented at 53rd Annual
SEG Meeting, paper S13.1, 582-584, and invited paper at the 1st Gulf Coast SEG
Meeting
Castagna, J. P., 1984, Digital processing improves sonic log reliability: World Oil, April,
71-74, invited paper
Goldberg, D. S., Gant, W. T., Siegfried, R. W., and Castagna, J. P., 1984, Processing and
interpretation of sonic log waveforms - a case study: presented at 54th Annual SEG
Meeting, paper BHG 2.4, 28-29
Goldberg, D. S., Kan, T. K., and Castagna, J. P., 1984, Attenuation measurements from
sonic log waveforms: presented at SPWLA 25th Annual Logging Symposium, paper NN
Anderson, R. G., and Castagna, J. P., 1984, Analysis of sonic log compressional-wave
amplitudes using borehole compensation techniques: SPWLA 25th Annual Logging
Symposium, paper K
Castagna, J. P., 1983, Prediction of Fe-Mg site occupancies in pigeonite: Geophysical
Research Letters, 10, 137-139
Castagna, J. P., 1983, Full-waveform sonic log processing: presented at 53rd Annual SEG
Meeting, Sonic Logging Workshop, invited paper
Castagna, J. P., and Gaiser, J. E., 1983, Quality sonic logs for seismic applications:
presented at 53rd Annual SEG Meeting, paper BHG2, 2-5
Castagna, J. P., and Gaiser, J. E., 1983, Improved seismic ground truth from sonic logs:
presented at SPWLA 24th Annual Logging Symposium, paper NN
Eastwood, R. L., and Castagna, J. P., 1983, Basis for interpretation of Vp
/Vs
ratios in
complex lithologies: presented at SPWLA 24th Annual Logging Symposium, paper G.
Reprinted in Geophysics II, Tools for Seismic Interpretation, Treatise of Petroleum
Geology, American Association of Petroleum Geologists
Castagna, J. P., and Sicking C. J., 1982, Sonic log error recognition and correction by
Wiener interpolation: presented at 52nd Annual SEG Meeting, paper L1.8, 325-327
Siegfried, R. W., and Castagna, J. P., 1982, Methods for the analysis of sonic log
waveforms: presented at SPWLA 23rd Annual Logging Symposium
Castagna, J. P., 1981, Energetics of garnet-clinopyroxene equilibrium reactions: Master's
Thesis, Brooklyn College of C.U.N.Y.
Castagna, J. P., Anderson, R. A., and Brock, D., 1981, Shear waves on sonic log
waveforms: presented at 51st Annual SEG Meeting, paper S11.6, 69-70
Castagna, J. P., Anderson, R. A., and Simmons, J., 1981, Compressional-wave amplitude
logging: presented at 51st Annual SEG Meeting, paper S11.5, 69
Backus, M. M., Castagna, J. P., and Gregory, A. R., 1979, Sonic log waveforms from
geothermal well, Brazoria Co., Texas: presented at 49th Annual SEG Meeting
Castagna, J. P., 1979, Application of the simple mixture model to garnet and
clinopyroxene solutions: EOS, Transactions, American Geophysical Union, 60, 404
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