Structural styles of the paradox basin: Something to consider in a basin dominated by stratigraphic traps
Conference
·
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
OSTI ID:7056863
The Paradox basin has produced a considerable amount of oil and gas from Pennsylvanian and Mississippian reservoirs. Most of the production has been from stratigraphic traps associated with subtle rejuvenated basement structures. Only the Blanding sub-basin and west flank of the salt anticlines (Lisbon Valley to Salt Wash fields) have been explored in sufficient quantity to classify as the mature parts of the basin, and even in these areas, new fields are currently being discovered. The majority of the basin still remains an exploration frontier. Certainly, structural and stratigraphic conditions analogous to those in the proven areas exist in much of these underexplored parts of the Paradox basin, but the potential for new and different types of hydrocarbon traps should not be overlooked. Structural styles present in the Paradox basin range from high-angle reverse, to normal, to inverted, which records different periods of crustal shortening and extension. To provide a full appreciation of the variety and complexities of structural styles in the Paradox basin and their influence on the orientation and distribution of different stratigraphic mechanisms, comparisons are made in the following areas: the Uncompahgre frontal fault zone, salt anticlines, Cane Creek anticline, Nequoia arch, Blanding basin, and Hogback monocline. To demonstrate the episodic nature of tectonism throughout the entire Phanerozoic Era, potential and proven hydrocarbon trapping styles are illustrated in strata ranging from Devonian to Late Pennsylvanian age. In particular, the Pennsylvanian Paradox evaporites and equivalent shelf carbonates and siliciclastics provide an excellent example of chronostratigraphic and glacioeustatic relationships. Due to the proven prolific nature of these Pennsylvanian reservoirs, the interrelationships of structure to stratigraphy in the Blanding basin and along the Cane Creek anticline will be emphasized.
- OSTI ID:
- 7056863
- Report Number(s):
- CONF-930947--
- Conference Information:
- Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 77:8
- Country of Publication:
- United States
- Language:
- English
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