B.S. Geology, Universidad Central de Venezuela, Caracas, February 1965

M.A. Geology, The University of Texas at Austin, May 1972

Ph.D. Geology, The University of Texas at Austin, May 1974

Present Position: Research Scientist, Bureau of Economic Geology, The University of Texas at Austin (April 1995 – Present).
Basin analysis and hydrocarbon field studies. Integrated interdisciplinary studies for hydrocarbon play definition and assessment and reservoir characterization of stratigraphically and structurally complex reservoirs in southern Mexico and western Venezuela.

Geological Consultant, Guevara & Associates, Inc., Houston, Texas (November 1994 – March 1995).
Geology of Venezuelan petroleum basins.

Geological Advisor, Geology Department, LAGOVEN, S.A., Caracas, Venezuela (January 1992 – October 1994).
Geological reservoir characterization studies planning and execution. Team Leader, Reservoir characterization of Centro Lago field Eocene C-2/C-4 reservoirs, Lake Maracaibo, Venezuela.

Research Scientist, Bureau of Economic Geology, The University of Texas at Austin (January 1985 – December 1991).
Reservoir description, research on the relationship between geologic reservoir characteristics and ultimate recovery of petroleum in terrigenous clastic depositional systems.

Manager, Earth Sciences Department, INTEVEP, S.A. (R & D Center, Petróleos de Venezuela), Caracas, Venezuela (October 1980 – December 1984).
Planning, coordination, supervision and control of research on exploration and production geology, geophysics and geochemistry for the Venezuelan petroleum industry.

Exploration Geologist, Geological Department, LAGOVEN, S.A., Caracas, Venezuela (August 1979 – September 1980).
Geological evaluation of petroleum prospective and producing areas, western Venezuela.

Research Scientist, Bureau of Economic Geology, The University of Texas at Austin (September 1977 – July 1979).
Basin analysis; research on the subsurface stratigraphic and structural framework of the East Texas Basin, and coordination of studies on salt dome geology, related to the suitability of salt domes for storage of nuclear waste.

Head, Stratigraphic Section, Exploration Department, Shell Venezuela-Maraven, S.A., Caracas, Venezuela (December 1975 – August 1977).
Reservoir studies, Lake Maracaibo, western Venezuela; geologic-stratigraphic studies (clastic sedimentology, stratigraphy, structural geology), western Venezuela; coordination of biostratigraphic lab (micropaleontology and palynology).

Exploration Geologist, Geological organization, Production Department, Creole Petroleum Corporation, Caracas, Venezuela (June 1975 – November 1975).
Basin analysis (clastic sedimentology, stratigraphy, structural geology), northwestern Venezuela.

Assistant Professor (part time), Department of Geology, School of Engineering, Universidad Central de Venezuela, Caracas (September 1975 – August 1976).
Dictated courses on historical geology and stratigraphy.

Research Scientist Associate V, Bureau of Economic Geology, The University of Texas at Austin (September 1974 – May 1975).
Facies distribution in the shallow subsurface of the Houston-Galveston area, part of research on land-surface subsidence.

Assistant Professor (part time), Department of Geology, School of Engineering, Universidad Central de Venezuela, Caracas (January 1974 – August 1974).
Dictated courses on historical geology and stratigraphy.

Sedimentologist, Production Geology Department, Shell Venezuela, Caracas, Venezuela (December 1973 – August 1974).
Production geology-reservoir description; core studies and facies characterization, western Venezuela.

Research Assistant II, Bureau of Economic Geology, The University of Texas at Austin (January 1972 – June 1972).

Exploration Geologist, Exploration and Production Division, Shell Venezuela, Caracas, Venezuela (January 1965 – August 1970).
Field geology, photogeology, stratigraphy, basin analysis, and reservoir description. Delineation and geological evaluation of petroleum prospective and producing areas in Western Venezuela.

Aslan, Andres, White, W. A., Warne, A. G., and Guevara, E. H., 2003, Holocene evolution of the western Orinoco Delta, Venezuela: Geological Society of America Bulletin, v. 115, no. 4, p. 479–498.

Sakurai, Shinichi, Grimaldo-Suarez, F. M., Aguilera-Gomez, L. E., Rodriguez-Larios, J. A., Ambrose, W. A., Jennette, D. C., Holtz, M. H., Dutton, S. P., Fouad, Khaled, Wawrzyniec, T. F., and Guevara, E. H., 2002, Petrophysical evaluation of Miocene-Pliocene gas reservoirs: Veracruz and Macuspana Basins, Mexico, in SPWLA 43rd Annual Logging Symposium Transactions, June 2–5, Oiso, Japan, 14 p.

Warne, A. G., Meade, R. H., White, W. A., Guevara, E. H., Gibeaut, J. C., Smyth, R. C., Aslan, Andres, and Tremblay, T. A., 2002, Regional controls on geomorphology, hydrology, and ecosystem integrity in the Orinoco Delta, Venezuela: Geomorphology, v. 44, p. 273–307.

Warne, A. G., Guevara, E. H., and Aslan, Andres, 2002, Late Quaternary evolution of the Orinoco Delta, Venezuela: Journal of Coastal Research, v. 18, no. 2, p. 225–253.

Jennette, David, Wawrzyniec, T. F., Fouad, Khaled, Meneses-Rocha, J., Holtz, M. H., Sakurai, Shinichi, Talukdar, S., Grimaldo, F., Muñoz, R., Lugo-Rivera, J. E., Barrera, D., Williams, C., Escamilla, A., Dutton, S. P., Ambrose, W. A., Dunlap, D. B., Bellian, J. A., and Guevara, E. H., 2002, Play-element characterization of the Miocene and Pliocene Veracruz Basin, southeastern Mexico: Gulf Coast Association of Geological Societies Transactions, v. 52, p. 441–453.

Edgar H. Guevara, Ph.D.
Research Scientist
Bureau of Economic Geology
The University of Texas at Austin
University Station, Box X
Austin, Texas 78713-8924
E-mail:
Telephone: 512-471-3159