INTEGRITY GEOPHYSICS
SPECIALIZING IN QUALITY
3-D SEISMIC INTERPRETATION
With today's prolific use of 3-D seismic in property evaluation, you need a seasoned 3-D seismic interpretation geophysicist who:
✔ Understands the data and the database.
✔ Knows the "tricks"and shortcuts of the software for efficient workflow.
✔ Recognizes interpretation pitfalls and knows how to avoid them.
✔ Can generate precise structure and seismic attribute maps integrated with your geologic and engineering data to enhance your property evaluation.
✔ Is a team player, on your side.

INTERPRETATION SERVICES


Since 1993, Integrity Geophysics has offered a full range of technical services for integrated, multidiscipline, computer-aided 3-D seismic interpretations:
 Horizon and fault interpretation
 Synthetic seismograms with checkshot corrections
 Seismic attribute analyses
 Velocity modeling
 Depth conversion
 Post-stack processing
 Database management
 Computer colorfill contour mapping
 Integration with geologic and engineering data

EXPERTISE IN STATE-OF-THE-ART SOFTWARE


Integrity Geophysics specializes in using leading industry software including UNIX-based Landmark's:
SeisWorks
OpenWorks
SeisCube
SynTool
MapIt
StratAmp
PostStack/PAL
RAVE
StratWorks
ZAP
Z-Map
Principal, V.M. Pendleton, was a technical advisor to the developer of GeoGraphix's SeisVision, a PC-based 3-D seismic interpretation software.

WORLDWIDE EXPERIENCE


Principal, V.M. Pendleton, has interpreted over 350 mi2 of 3-D and 24,000 miles of 2-D seismic data in a broad range of U.S. and international petroleum basins and trends, including:
 New Mexico
 North-Central Texas
 West Texas
 South Texas
 South Louisiana
 Oklahoma
 Gulf of Mexico
 U.S. offshore frontier
 Argentina
 Venezuela

PARTIAL LIST OF CLIENTS


  • Arch Petroleum/Threshold Development Corporation
  • Geophysical Associates, Inc.
  • Pintas Creek Oil Company
  • Vintage Petroleum, Inc.
Texas Bureau of Economic Geology on projects for:
  • Enserch
  • Gas Research Institute
  • Maraven, S.A., Venezuela
  • Mobil E&P U.S., Inc.
  • OXY USA, Inc.
  • Shell Western E&P, Inc.
  • U. S. Department of Energy
  • YPF, Argentina

PRINCIPAL


V.M. Pendleton
President/Geophysical Consultant

V.M. Pendleton began as a professional seismic interpretation geophysicist in 1980, working for two major oil companies and an international geological/geophysical research institute. Since 1993, V.M. Pendleton has served the industry as a geophysical consultant.

V.M. Pendleton is a certified Professional Earth Scientist, SIPES #2461, and joined SEG and AAPG in 1981. V.M. has co-authored papers in Geophysics, SEG Development Series/AAPG Studies in Geology, GCAGS 3-D Seismic Case Histories From The Gulf Coast Basin and Journal of Petroleum Science and Engineering, and is a recipient of "The 2001 AAPG Levorsen Memorial Award For Best Paper", and is a recipient of an SEG "Best Paper in Geophysics 1996" honorable mention.

V.M. Pendleton holds B.A. and M.A. geoscience degrees from Principia College and Boston University, and has done field and post-graduate work in geology and geophysics at the University of Texas at Austin and the Institute of Geophysics and Planetary Physics, University of California.

"V.M. Pendleton is an excellent seismic interpreter. Several successful wells have been drilled using maps that V.M. has generated."

Dr. Bob A. Hardage
Director, Exploration Geophysics Laboratory
Texas Bureau of Economic Geology
Austin, TX

"V.M. is one of the most thorough geophysicists I’ve worked with. V.M. will work a problem until it makes sense, geologically as well as geophysically."

Mr. Richard P. Wilkerson
Geologist
Miller Energy, Inc.
Houston, TX

"V.M. Pendleton looks at the big picture, is creative, and has an instinct for oil and gas."

Dr. David R. DeFelice
USA New Ventures Coordinator
Occidental Oil and Gas Corporation
Bakersfield, CA

GEOSCIENCE PUBLICATION AWARDS


Co-Author of paper that won the American Association of Petroleum Geologists Southwest Section 2001 A. I. Levorsen Memorial Award: "3-D Seismic Evidence of the Effects of Carbonate Karst Collapse on Overlying Clastic Stratigraphy and Reservoir Compartmentalization", by Bob A. Hardage, David L. Carr, David E. Lancaster, James L. Simmons Jr., Robert Y. Elphick, Virginia M. Pendleton, and Ronald A. Johns.

Co-Author of paper that won "Best Paper in Geophysics, 1996" Honorable Mention award from the Society of Exploration Geophysicists: "3-D Seismic Evidence of the Effects of Carbonate Karst Collapse on Overlying Clastic Stratigraphy and Reservoir Compartmentalization", by Bob A. Hardage, David L. Carr, David E. Lancaster, James L. Simmons Jr., Robert Y. Elphick, Virginia M. Pendleton, and Ronald A. Johns, GEOPHYSICS(1996), 61(5):1336.

GEOSCIENCE PUBLICATIONS


Reports, Monographs, Brochures, Pamphlets, Bulletins

Angle, E. S., Barton, M. D., Bhattacharya, J. P., Chang, C.-Y., Fang, Qing, Fisher, R. S., Goldhammer, R. K., Hamilton, D. S., Holtz, M. H., Pendleton, V. M., Raeuchle, S. K., Razi, M., Skolnakorn, J., Treviño, R. H., Yeh, J. S., Andrada, Luis, Bugarini, Marta, Fonseca, Claudio, Frati, Guillermo, Jalfin, Guillermo, Lafourcade, Petro, Moreiras, Edgardo, Vignetta, Hugo, Ayestaran, Luis, Nacul, E. C., and Agraz, P. R., 1996, Caracterización de reservorios en la Formación Potrerillos y proyecto de optimización de recuperación de petróleo en el yacimiento Barrancas norte Argentina: The University of Texas at Austin, Bureau of Economic Geology, final report prepared for YPF, S.A., 292 p.

Ambrose, W. A., Akhter, M. S., Treviño, R. H., Barba, R. E., Jr., Dutton, S. P., Parker, Dan, Yeh, J. S., Pendleton, V. M., Raeuchle, S. K., Wang, D. L., Colvin, Linda, Guevara, E. H., Barrow, K. T., and Barnaby, R. J., 1997, Integrated reservoir study, lower Eocene Misoa reservoirs, VLA-6/9/21 Area, Block I, Phase 2, Stage 3, Lake Maracaibo, Venezuela: The University of Texas at Austin, Bureau of Economic Geology, final report prepared for Maraven, S.A., under Agreement No. 11-E-395, 161 p. plus attachments.

Ambrose, W. A., Akhter, M. S., Barba, R. E., Jr., Barnaby, R. J., Barrow, K. T., Colvin, Linda, Dutton, S. P., Guevara, E. H., Parker, Dan, Pendleton, V. M., Raeuchle, S. K., Treviño, R. H., Wang, D. L., and Yeh, J. S., 1997, Integrated reservoir study, lower Eocene Misoa reservoirs, VLA-6/9/21 Area, Block I, Phase 2, Stage 3, Lake Maracaibo, Venezuela: The University of Texas at Austin, Bureau of Economic Geology, final report prepared for Maraven, S.A., under Agreement No. 11-E-395, 158 p.

Hardage, B. A., Asquith, G. B., and Pendleton, V. M., 1999, 3-D seismic interpretation of deep, complex structures in the Delaware Basin, West Texas: The University of Texas at Austin, Bureau of Economic Geology Geological Circular 99-1, 42 p.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, Rick, 1995, A 3-D seismic case history evaluating fluvially deposited thin-bed reservoirs in a gas-producing property: The University of Texas at Austin, Bureau of Economic Geology Geological Circular 95-1, 16 p. Reprinted with permission from Geophysics, v. 59, no. 11 (November 1994), p. 1650–1665.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, R., 2001, A 3-D seismic case history evaluating fluvially deposited thin-bed reservoirs in a gas-producing property, in Graebner, R., Hardage, B., and Schneider, W., eds., 3-D seismic exploration: Tulsa, Society of Exploration Geophysicists, SEG Geophysics Reprint Series, p. 645–660.

Hardage, B. A., Carr, D. L., Lancaster, D. E., Simmons, J. L., Jr., Elphick, R. Y., Pendleton, V. M., and Johns, R. A., 2001, 3-D seismic evidence of the effects of carbonate karst collapse on overlying clastic stratigraphy and reservoir compartmentalization, in Graebner, R., Hardage, B., and Schneider, W., eds., 3-D seismic exploration: Tulsa, Society of Exploration Geophysicists, SEG Geophysics Reprint Series, p. 673–687.

Hardage, B. A., Pendleton, V. M., Major, R. P., Asquith, G. B., Schultz-Ela, D., and Lancaster, D. E., 1999, Case history: using petrophysics and cross-section balancing to interpret complex structure in a limited-quality 3-D seismic image: Geophysics, v. 64, no. 6, p. 1760–1773.

Hardage, B. A., Pendleton, V. M., Simmons, J. L., Jr., Stubbs, B. A., and Uszynski, B. J., 1998, 3-D instantaneous frequency used as a coherency/continuity parameter to interpret reservoir compartment boundaries across an area of complex turbidite deposition: Geophysics, v. 63, no. 5, p. 1520–1531.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, Rick, 1997, Characterization of compartmented reservoirs deposited in a fluvial environment: Journal of Petroleum Science and Engineering, v. 17, p. 373–382.

Hardage, B. A., Carr, D. L., Lancaster, D. E., Simmons, J. L., Jr., Elphick, R. Y., Pendleton, V. M., and Johns, R. A., 1996, 3-D seismic evidence of the effects of carbonate karst collapse on overlying clastic stratigraphy and reservoir compartmentalization: Geophysics, v. 61, no. 5, p. 1336–1350.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, Rick, 1995, Discussion and reply to A 3-D seismic case history evaluating fluvially deposited thin-bed reservoirs in a gas-producing property (Geophysics, 1994, v. 59, p. 1650–1665): Geophysics, v. 60, p. 1585–1591.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, Rick, 1994, A 3-D seismic case history evaluating fluvially deposited thin-bed reservoirs in a gas-producing property: Geophysics, v. 59, no. 11, p. 1650–1665.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, Rick, 1994, A 3-D seismic case history evaluating fluvially deposited thin-bed reservoirs in a gas-producing property: The University of Texas at Austin, Bureau of Economic Geology, reprinted as Geological Circular 95-1.

Raeuchle, S. K., Ambrose, W. A., Akhter, M. S., Guevara, E. H., Pendleton, V. M., Treviño, R. H., and Wang, D. L., 1996, Integrated reservoir study, lower Eocene Misoa reservoirs, VLA-6/9/21 area, block I, phase 2, stage 2: The University of Texas at Austin, Bureau of Economic Geology, final report prepared for Maraven, S.A., under agreement no. 11-E-395, 271 p. + app.

Non-peer-reviewed

Pendleton, Virginia M., and Hardage, Bob A., 1999, 3-D seismic imaging of a thin, vertically isolated fluvial depositional system reservoir in Seeligson Field: The Leading Edge, v.18, no. 4, p. 464-477.

Pendleton, V. M., and Hardage, B. A., 1998, 3-D seismicity imaging of a thin, vertically isolated fluvial depositional system reservoir in Seeligson field, South Texas, in Allen, J. L., Brown, T. S., John, C. J., and Lobo, C. F., eds., 3-D seismic case histories from the Gulf Coast Basin: a GCAGS Special Publication: Gulf Coast Association of Geological Societies, p. 269–281.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, R., 1997, 3-D seismic imaging and interpretation of fluvially deposited thin-bed reservoirs, in Weimer, P., and Davis, T. L., eds., AAPG Studies in Geology No. 42 and SEG Geophysical Developments Series No. 5: Tulsa, American Association of Petroleum Geologists/Society of Exploration Geophysicists, p. 27–34.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, R., 1996, 3-D seismic imaging and interpretation of fluvially deposited thin-bed reservoirs, in Weimer, P., and Davis, T. L., eds., AAPG Studies in Geology No. 42 and SEG Geophysical Developments Series No. 5: Tulsa, American Association of Petroleum Geologists/Society of Exploration Geophysicists, p. 27–34.

Hardage, B. A., Levey, R. A., Pendleton, V. M., Simmons, J. L., Jr., and Edson, Rick, 1995, A 3-D seismic case history evaluating fluvially deposited thin-bed reservoirs in a gas-producing property: South Texas Geological Society Bulletin, v. 35, no. 7, p. 17–29.

Computer Programs/Databases

Major, R. P., Hardage, B. A., Asquith, G. B., Lancaster, D. E., Pendleton, V. M., and Remington, L. E., 1998, West Waha and Worsham–Bayer Fields Data Set: 3–D Seismic Data, Well Logs, and Production Records: The University of Texas at Austin, Bureau of Economic Geology, CD ROM prepared with the assistance of the U.S. Department of Energy and Gas Research Institute, I GRI-98/0070.1.

Lectures and Addresses

Interpretation of a fluvial depositional system using 3-D seismic horizon amplitude images (with Virginia M. Pendleton): presented to University of Tulsa geoscience students, Tulsa, OK, 1997.

Interpretation of a fluvial depositional system using 3-D seismic horizon amplitude images (with Virginia M. Pendleton and Rick D. Edson): presented to Sierra Geophysics, Inc., 7th Annual Software Users Meeting, Houston, Texas, 1992.