Structural patterns, evolution, and seismic expression of Montague County, Texas - Implications concerning past discoveries and future exploration

Conference · Thu Feb 01 04:00:00 EST 1990 · AAPG Bulletin (American Association of Petroleum Geologists); (USA)

OSTI ID:7157195

Font, R G ^[1]

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1. Strategic Petroleum, Inc., Dallas, TX (USA)

North Texas is a mature province that has yielded abundant hydrocarbons. Opportunities still exist for discovering large reserves by applying new technology and developing innovative concepts for frontier type plays. Montague County can be used to illustrate this point. Analysis of seismic and petrologic data reveals a fascinating scenario concerning structural patterns and tectonic evolution. The Proterozoic and early Paleozoic history is related to the development of the Wichita aulacogen. Similar structural architecture is found on the southern side of the Wichita-Amarillo uplift from the Hardeman basin to Montague County. The early history reflects rifting. Subsequent tectonism relates to the Hercynian orogeny, plate convergence, and collision. Fault patterns mapped from seismic and subsurface data may be explained through reorientation of the principal stresses. Of the major patterns mapped, the northwest-trending system is dominant. Normal faults formed during rifting were selectively reactivated as upthrusts during convergence. Past discoveries are almost invariably related to seismic expression. New Carboniferous reserves will be discovered in subtle traps. State-of-the-art seismic and seismic stratigraphy will equate to exploratory success. New play concepts involve the petroleum potential of the deep Ellenburger, similar to the deep pay found in Oklahoma. Recent deep wells drilled in the county affirm the presence of structure and reservoir, but fail to find the indigenous source potential present north of the Red River. Best opportunities for deep Ellenburger discoveries in Texas lie where faulting juxtaposes Carboniferous source rocks to the Cambrian-Ordovician reservoirs.

• OSTI ID: 7157195
• Report Number(s): CONF-9003145--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Journal Volume: 74:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
CAMBRIAN PERIOD
CARBONIFEROUS PERIOD
EXPLORATION
FEDERAL REGION VI
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC HISTORY
GEOLOGIC STRUCTURES
GEOLOGIC TRAPS
GEOLOGY
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NORTH AMERICA
ORDOVICIAN PERIOD
PALEOZOIC ERA
PETROLEUM DEPOSITS
RESOURCES
STRATIGRAPHY
TEXAS
USA