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1 Petroleos Mexicanos Exploración y Producción (PEMEX) Exploración y Producción, Casa B Int. Campo Pemex, Col. Medias Lomas, Poza Rica, Veracruz, CP 93387, Mexico; jhernandezme{at}pep.pemex.com
2 Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78713-8924; tucker.hentz{at}beg.utexas.edu
3 Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78713-8924; michael.deangelo{at}beg.utexas.edu
4 Department of Earth and Planetary Sciences, Northrop Hall, Room 141, MSC03 2040, 1 University of New Mexico, Albuquerque, New Mexico 87131-0001; tfw{at}unm.edu
5 Occidental Mukhaizna L.L.C., P.O. Box 717, P.C. 130, Al-Athaybah, Sultanate of Oman; Shinichi_Sakurai{at}oxy.com
6 Baseline Resolution, Inc., 143 Vision Park Blvd., Shenandoah, Texas 77384; STalukdar{at}baselinelabs.com
7 Praxair, Inc., 222 Pennbright Drive, Suite 300, Houston, Texas 77090; Mark_Holtz{at}Praxair.com
J. Javier Hernández-Mendoza is a geoscientist, specializing in regional geology, for Pemex Exploración y Producción (PEP) in the Burgos Basin. He has worked for PEP since 1986, conducting studies at the prospect and play levels in the Burgos Basin. He holds a geologist engineer title from Tecnológico de Ciudad Madero and an M.S. degree in geological sciences from the University of Texas at Austin.
Tucker F. Hentz is a sedimentary geologist specializing in siliciclastic sequence stratigraphy and basin analysis. He received his M.S. degree in geology from the University of Kansas in 1982. He joined the Bureau of Economic Geology in 1982 and has conducted studies in several mid-Continent and Gulf Coast basins.
Michael V. DeAngelo is a geophysicist specializing in seismic interpretation. He received an M.S. degree in geophysics from the University of Texas at El Paso in 1988. He joined the Bureau of Economic Geology in 1998 and has been working on a variety of onshore and offshore reservoir characterization projects.
Tim F. Wawrzyniec is a structural geologist specializing in kinematic analysis and geophysics. He received his Ph.D. from the University of New Mexico in 1999 and worked for Vastar and the Bureau of Economic Geology. In 2003, he joined the Department of Earth and Planetary Sciences at the University of New Mexico.
Shinichi Sakurai is a senior petrophysical advisor with Occidental Mukhaizna L.L.C. From 2000 to 2006, he worked for the Bureau of Economic Geology, providing petrophysical support for various projects. He is a member of the Society of Petrophysicists and Well Log Analysts, serving as board member, distinguished speaker, and symposium chair. He specializes in petrophysical evaluation of carbonates and enhanced-oil-recovery analysis. He received his B.S. degree in geology from the Tohoku University, Sendai, Japan.
Suhas C. Talukdar is a geologist-geochemist with more than 35 years of professional experience in the industry, research, and teaching. He received his Ph.D. from Rice University in 1973. His expertise is in petroleum geochemistry, basin modeling, petroleum system analysis, hydrocarbon charge assessments for plays and prospects, and integrated basin studies. He is presently a senior geochemist with Baseline Resolution, Inc.
Mark H. Holtz, formerly with the Bureau of Economic Geology, is a reservoir engineer. He currently serves as the director of International Enhanced Oil Recovery Business Development for Praxair. Mark has worked on primary- and secondary-recovery projects in the United States, Australia, Venezuela, Argentina, Mexico, India, China, and Austria. He holds an M.S. degree in petroleum engineering from the University of Texas at Austin.
ABSTRACT
This study characterizes Miocene chronostratigraphy and plays in the Burgos Basin and adjacent south Texas within an area of approximately 39,700 km2 (15,300 mi2), onshore and offshore (to the 500-m [1640-ft] isobath). Using greater than 40,000 linear kilometers (25,000 mi) of two-dimensional seismic lines, 115 onshore wells, 9 offshore wells, and paleontological data, we established a correlation framework of 9 key surfaces (upper Oligocene to lower Pliocene) representing major (probably third-order) sequence boundaries and maximum flooding surfaces throughout the basin. Five of the Burgos Miocene surfaces coincide with regional chronostratigraphic surfaces from the Veracruz and Laguna Madre-Tuxpan basins, thus establishing a consistent correlation framework throughout much of the Mexican Gulf Coast Basin.
Twenty Miocene plays are defined by four age divisions (lower Miocene, middle Miocene, upper Miocene_1, and upper Miocene_2) and four paleogeographic settings (unexpanded and expanded shelf, proximal slope, and distal slope). Because of proven high productivity in salt-bounded basins in the northern Gulf of Mexico, the onlap of strata onto diapirs in the eastern Burgos salt province was evaluated as a fifth setting. The paleogeographic provinces and onlap areas exhibit characteristic seismic facies, stratal geometries, and structural relations; a characterization of each one of these being key to the overall play evaluation. This play framework provides the means for continuing exploration of Miocene strata and evaluation of key play elements (reservoir presence and quality, seal, trap, source, and migration and timing) in this structurally complex, underexplored basin. The relative importance of these play elements varies systematically for each play, especially between the onshore shelf plays and the offshore deep-water plays, where fault complexity and stratigraphic variability are greater.
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