Integrated Geophysics Corporation
Integrated Geophysics Corporation
Structural Framework
Burgos Basin
Integrated Geophysics Corporation
ASSESSING THE POTENTIAL OF THE BURGOS BASIN
Structural framework of the Super Burgos Basin
Correlation to production trends:
Tertiary Plays: Frio, Vicksburg & Wilcox
Cretaceous Play: Eagle Ford (Agua Nuevo & San Felipe)
Jurassic Play: La Casita (Pimienta)
Distinctions between South Texas Basin & Mexican Burgos Basin
Current Shale Wells
Basement structure & depths
Why structure is important in the Burgos Basin
Integrated Geophysics Corporation
Reduced-to-Pole Magnetic Intensity
South Texas Basin
Data Map Source: World Digital Magnetic Anomaly (WDMAM) grid file Sept 2007 Grid: 1 kilometer data grid Range: -186 to 413nT RTP: IGC calculation Unfortunately, the regional
data control of the World Map
data allows only for a
qualitative analysis.
Integrated Geophysics Corporation
Northeastern Mexico Coahuila State Onshore area: 24,200sq mi.
Southern extension of the Maverick Basin Texas Western extension of the South Texas Basin
Reduced-to-Pole Magnetic Intensity
Super Burgos : name coined for the area
bounded by the mega-
shears.
Integrated Geophysics Corporation
This aeromagnetic map
was selected to illustrate
complex relationship of
the sub-basins bounded
by significant structural
elements:
•mega-shears,
•basement structures
•surface geology
Integrated Geophysics Corporation
South Texas Basin
Mexico’s Shale -appears to be of good quality.
- geologic structure of the sedimentary basins are considerably more complex.
- compared to US Coastal gently dipping shale belts, Mexico’s coastal shale zone is narrower, less continuous and structurally more disrupted.
Reduced-to-Pole Magnetic Intensity
Sub- Basins
Sub Basins - a complex of related sub-basins bounded by the significant structural elements. -South Texas & Burgos are outlined as the one sub-basin within the Super Burgos area.
-All other sub-basins outlined lie within Burgos Basin; all are correlate to Border Rift System.
East-Central Mexico Stratigraphy
Frio 1948 -Reynosa Vicksburg 1945 - Mision
Wilcox 1959 -Penalva
Integrated Geophysics Corporation
Frio, Vicksburg and Wilcox Trends
Frio, Vicksburg and Wilcox Trends
Tertiary Plays generally described as
growth fault related plays. Tertiary sequence rocks have
a regional dip toward the east
and are affected by a serious
of major normal faults roughly
parallel to the coastline and
with displacement downward
to the Gulf Coast.
Source: 80% from
Upper Jurassic (Tithonian) & Paleogene Shales
Production Conventional exploration started 1911 Today - 3,500 active natural gas wells
Integrated Geophysics Corporation
Reduced-to-Pole Magnetic Intensity
South Texas Basin
Miocene & Tertiary Growth Fault Plays
Conventional Sandstone Reservoirs 20 distinct plays
Source: Hernandez-Mendoza, 2008
B E
Source: Echanove, 1986
Integrated Geophysics Corporation
Growth faults are the dominant trap
which includes anticlines, tilted blocks,
and sedimentary wedges on the
downside of the fault.
East-Central Mexico Stratigraphy
Agua Nuevo (San Felipe) Late 2010- 6 shale wells
La Casita (Pimienta) March 2013 PEMEX Anhelido-1 – 400b/d of shale liquids
Eagle Ford Haynesville
As of Sept 2013: 343 Tcf gas & 6.3bb projected
Integrated Geophysics Corporation
Agua Nuevo (Eagle Ford) and La Casita (Haynesville) Trends
Aqua Nuevo –San Felipe
Shale plays - Cretaceous and
Upper Jurassic sequence contains
basinal, organic-rich and thermally
mature argillaceous rocks.
This includes the Aqua Nuevo and
La Casita including the Pimienta.
Reduced-to-Pole Magnetic Intensity
Integrated Geophysics Corporation
Anheldo-1
1st shale oil well
discovery:
La Casita formation
(dry gas)
March 2013
To-date 7 shale related wells have been drilled:
Emergente dry gas 4,071m 13,358ft
Percutor-1 dry gas 3,436m 11,270ft
Habano-1 gas/con 3,770m 12,366ft
Montanes-1 gas/con 3,200m 10,496ft
Nomada-1 --- 2,850m 9,348ft
Arbolero-1 dry gas 4,007m 13,143ft
Anhelido-1 oil & gas 3,945m 12,940ft Reduced-to-Pole Magnetic Intensity
Integrated Geophysics Corporation
Production Summary As of Sept 2013
Modest gas flows (>3 million cft/day) Wells exhibit steep declines Well cost: $20-25 million per well PEMEX plans to drill 75 Burgos shale wells thru 2015 & increase production to 2B cft/day by 2025
Regional Cross-Section of Wells across the Six Basins
Note: the influence of the basement structure to the success of deep Jurassic play: La Casita & Pimienta.
Integrated Geophysics Corporation
Fault Composite & Regional RTP
Megashears & Transforms have influence the generation of the depo-centers for oil & gas generation (sub-basins) & therefore the prospective area for shale exploration. Northern Burgos Basin is related to the South Texas Basin. Southern Burgos Basin is best described as the Border Rift System.
Integrated Geophysics Corporation
Megashear (Jurassic) Discontinuities parallel to
the direction of Atlantic
opening.
Transforms (Cretaceous)
These features are
recognized by:
- linear block boundaries
- block offsets
- fold offsets
- stratgraphic changes.
Chittim Arch located in the Maverick Basin US
illustrates the structural complexity of the reservoir sands
Jurassic
Source: Ewing 2012
Integrated Geophysics Corporation
Chittim Anticline is an interesting feature.
Located in center Maverick county – runs NW-SE for 30 miles (18km) & is 2 miles (1.2km) wide
Good example of possible systems that underlie other folds in the Burgos Basin.
The surface structure reflects the fold cover over a deep half-graben complex
Similar structures can be identified with regional gravity & magnetic data.
Barrel of Oil Equivalent is high: 343 Tcf & 6.3bb gas & oil projected by
ARI June 2013.
Burgos Basin & South Texas Basin are related as bounded by Jurassic mega tectonic shears Basins have the same Miocene & Tertiary structures – regional normal faults
roughly parallel to the coastline and with displacement downward to the Gulf Coast.
Basins differ in their deep structural configurations.
Structural framework of Burgos is complicated by close-spaced
Cretaceous transfer systems. Aqua Nuevo (San Felipe) will be impacted by these K transfer faults; unlike the
US Eagle Ford. Jurassic Play: La Casita (Pimienta) will be governed by rift geometries.
Cross-trend structures, rift valleys, tilted blocks
Exploration strategy will have to be cost efficient & include state-of-the-
art technology and multiple data sources
Integrated Geophysics Corporation
Integrated Geophysics Corporation
Advanced Resources International, Inc. for U.S. Energy Information Administration & U.S. Department of Energy, Technically Recoverable Shale Gas and Shale Oil Resources: An Assessment of 137 Shale Formations in 41 Countries Outside the United States, EIA/ARI World Shale Gas and Shale Oil Resource Assessment, Mexico, section II p. 1-26, June 2013
Beebe B.W., Occurrence of Natural Gas in Mexico, AAPG Memoir M 9: Natural Gases of North America, Volume One, p. 209-232, 1968
Dixon B., Flint D., ¡MEXICO! A New Opportunity, CIM Petroleum Society. Petroleum Economics Special Interest Group. March 27, 2003
Ewing T. E., Tectonic domains in the Rio Grande / Rio Bravo border region, Texas and Mexico: Laramide structures suggest earlier history: Gulf Coast Association of Geological Societies Transactions, v. 61, p. 141–155.
Fredrick J., Mexico boasts first shale oil, BNamericas, http://www.bnamericas.com/news/oilandgas/mexico-boasts-first-shale-oil, March 7, 2013 Galicia-Barrios, Guadalupe J., Mexico’s Shale Oil and Gas Plays: Potential and Exploration Strategy,; AAPG Search and Discovery Article #90166©2013 AAPG International Conference & Exhibition, Cartagena, Colombia, 8-11 September 2013
Hackley, P.C., Geological and geochemical characterization of the Lower Cretaceous Pearsall Formation, Maverick Basin, south Texas: A future shale gas resource?,AAPG Bulletin, V. 96, No. 8 (August 2012), P. 1449–1482
Hentz T. F., Ruppel S. C., Regional Stratigraphic and Rock Characteristics of Eagle Ford Shale in Its Play Area: Maverick Basin to East Texas Basin, Search and Discovery Article #10325 (2011)
Hernandez-Mendoza J. J., Hentz T. F., DeAngelo M. V., Wawrzyniec T. F., Sakurai S., Talukdar S. C., and Holtz M. H., Miocene chronostratigraphy, paleogeography, and play framework of the Burgos Basin, southern Gulf of Mexico, AAPG Bulletin, V. 92, No. 11 (November 2008), P. 1501-1535
Lozano, Roberto, The challenges for shale gas production in Mexico, Regional Workshop on the Changing Global Market and Unconventional Gas, 6-8 May 2013, Jakarta, nesia Prieto C., Rowe J. D., A new frontier: Deep gas exploration offshore South Texas, USA—An assessment tool, Gulf Coast Association of Geological Societies Transactions, v. 57, p. 663-666.
Yurewicz D. A., Chuchla R. J., Richardson M., Pottorf R. J., Gray G. G., Kozar M. G., Fitchen W. M., Hydrocarbon generation and migration in the tampico-Misantla basin and Sierra Madre Oriental, East-Central Mexico: evidence from an exhumed oil field in the Sierra De El Abra, Sedimentation and Diagenesis of Middle Cretaceous Platform Margins, East-Central Mexico, 1997, p. 1-24
www.igcworld.com